pkg/report: arm64 support

Add arm64 test crash and some parsing logic fixes/improvements.

24 files changed, 795 insertions, 65 deletions

diff --git a/pkg/report/linux.go b/pkg/report/linux.go
index 8bba45b13..f1e02eec2 100644
--- a/pkg/report/linux.go
+++ b/pkg/report/linux.go
@@ -96,6 +96,7 @@ func ctorLinux(cfg *config) (Reporter, []string, error) {
 		// synchronously, which means that maybe the report is not corrupted.
 		// But of course it can come from another CPU as well.
 		compile(`PANIC: double fault`),
+		compile(`Internal error:`),
 	}
 	// These pattern math kernel reports which are not bugs in itself but contain stack traces.
 	// If we see them in the middle of another report, we know that the report is potentially corrupted.
@@ -521,7 +522,9 @@ func (ctx *linux) isCorrupted(title string, report []byte, format oopsFormat) (b
 		return false, ""
 	}
 	// Check if the report contains stack trace.
-	if !format.noStackTrace && !bytes.Contains(report, []byte("Call Trace")) &&
+	if !format.noStackTrace &&
+		!bytes.Contains(report, []byte("Call Trace")) &&
+		!bytes.Contains(report, []byte("Call trace")) &&
 		!bytes.Contains(report, []byte("backtrace")) {
 		return true, "no stack trace in report"
 	}
@@ -583,16 +586,6 @@ func linuxStallFrameExtractor(frames []string) (string, string) {
 				// (there can be several variations on the next one).
 				prev = "smp_call_function"
 			}
-			for _, prefix := range []string{
-				"__x64_",
-				"SYSC_",
-				"SyS_",
-				"compat_SYSC_",
-				"compat_SyS_",
-				"__ia32_sys_",
-			} {
-				prev = strings.TrimPrefix(prev, prefix)
-			}
 			return prev, ""
 		}
 		prev = frame
@@ -700,7 +693,7 @@ var linuxStallAnchorFrames = []*regexp.Regexp{
 	compile("^compat_sock_ioctl"),
 	compile("^nfnetlink_rcv_msg"),
 	compile("^rtnetlink_rcv_msg"),
-	compile("^(compat_)?(SYSC|SyS|__sys|___sys|__do_sys|__se_sys|__x64_sys)_(socketpair|connect|ioctl)"),
+	compile("^(sys_)?(socketpair|connect|ioctl)"),
 	// Page fault entry points:
 	compile("__do_fault"),
 	compile("handle_mm_fault"),
@@ -717,7 +710,8 @@ var linuxStallAnchorFrames = []*regexp.Regexp{
 var (
 	linuxSymbolizeRe  = regexp.MustCompile(`(?:\[\<(?:[0-9a-f]+)\>\])?[ \t]+(?:[0-9]+:)?([a-zA-Z0-9_.]+)\+0x([0-9a-f]+)/0x([0-9a-f]+)`)
 	linuxStackFrameRe = regexp.MustCompile(`^ *(?:\[\<?(?:[0-9a-f]+)\>?\] ?){0,2}[ \t]+(?:[0-9]+:)?([a-zA-Z0-9_.]+)\+0x([0-9a-f]+)/0x([0-9a-f]+)`)
-	linuxRipFrame     = compile(`N?IP:? (?:(?:[0-9]+:)?(?:{{PC}} +){0,2}{{FUNC}}|[0-9]+:0x[0-9a-f]+|(?:[0-9]+:)?{{PC}} +\[< *\(null\)>\] +\(null\)|[0-9]+: +\(null\))`)
+	linuxRipFrame     = compile(`(?:IP|NIP|pc ):? (?:(?:[0-9]+:)?(?:{{PC}} +){0,2}{{FUNC}}|[0-9]+:0x[0-9a-f]+|(?:[0-9]+:)?{{PC}} +\[< *\(null\)>\] +\(null\)|[0-9]+: +\(null\))`)
+	linuxCallTrace    = compile("Call (?:T|t)race:")
 )
 
 var linuxCorruptedTitles = []*regexp.Regexp{
@@ -726,7 +720,7 @@ var linuxCorruptedTitles = []*regexp.Regexp{
 }
 
 var linuxStackKeywords = []*regexp.Regexp{
-	regexp.MustCompile(`Call Trace`),
+	regexp.MustCompile(`Call (?:T|t)race`),
 	regexp.MustCompile(`Allocated:`),
 	regexp.MustCompile(`Allocated by task [0-9]+:`),
 	regexp.MustCompile(`Freed:`),
@@ -756,13 +750,18 @@ var linuxStackParams = &stackParams{
 		"do_error",
 		"invalid_op",
 		"_trap",
+		"show_stack",
 		"dump_stack",
+		"dump_backtrace",
 		"warn_slowpath",
 		"warn_alloc",
 		"__warn",
 		"debug_object",
 		"timer_is_static_object",
 		"work_is_static_object",
+		"__might_fault",
+		"print_unlock",
+		"imbalance_bug",
 		"lockdep",
 		"perf_trace",
 		"lock_acquire",
@@ -772,10 +771,12 @@ var linuxStackParams = &stackParams{
 		"spin_lock",
 		"spin_trylock",
 		"spin_unlock",
-		"raw_read_lock",
-		"raw_read_trylock",
-		"raw_write_lock",
-		"raw_write_trylock",
+		"read_lock",
+		"read_trylock",
+		"write_lock",
+		"write_trylock",
+		"read_unlock",
+		"write_unlock",
 		"down",
 		"down_read",
 		"down_write",
@@ -882,12 +883,36 @@ var linuxStackParams = &stackParams{
 		"wait_for_completion",
 		"^kfree$",
 		"kfree_skb",
+		"readb$",
+		"readw$",
+		"readl$",
+		"readq$",
+		"writeb$",
+		"writew$",
+		"writel$",
+		"writeq$",
+		"logic_in",
+		"logic_out",
 	},
 	corruptedLines: []*regexp.Regexp{
 		// Fault injection stacks are frequently intermixed with crash reports.
 		// Note: the actual symbol can have all kinds of weird suffixes like ".isra.7", ".cold" or ".isra.56.cold.74".
 		compile(`^( \[\<?(?:0x)?[0-9a-f]+\>?\])? should_fail(slab)?(\.[a-z0-9.]+)?\+0x`),
 	},
+	stripFramePrefixes: []string{
+		"SYSC_",
+		"SyS_",
+		"____sys_",
+		"___sys_",
+		"__sys_",
+		"__se_sys_",
+		"__do_sys_",
+		"compat_SYSC_",
+		"compat_SyS_",
+		"__x64_",
+		"__ia32_",
+		"__arm64_",
+	},
 }
 
 func warningStackFmt(skip ...string) *stackFmt {
@@ -901,7 +926,7 @@ func warningStackFmt(skip ...string) *stackFmt {
 			parseStackTrace,
 		},
 		parts2: []*regexp.Regexp{
-			compile("Call Trace:"),
+			linuxCallTrace,
 			parseStackTrace,
 		},
 		skip: skip,
@@ -921,7 +946,7 @@ var linuxOopses = append([]*oops{
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
 						compile("BUG: KASAN: (?:[a-z\\-]+) in {{FUNC}}"),
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -933,7 +958,7 @@ var linuxOopses = append([]*oops{
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
 						compile("BUG: KASAN: double-free or invalid-free in {{FUNC}}"),
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"kmem_", "slab_", "kfree", "vunmap", "vfree"},
@@ -954,7 +979,7 @@ var linuxOopses = append([]*oops{
 				fmt:    "KMSAN: kernel-usb-infoleak in %[2]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"usb_submit_urb", "usb_start_wait_urb", "usb_bulk_msg", "usb_interrupt_msg", "usb_control_msg"},
@@ -966,7 +991,7 @@ var linuxOopses = append([]*oops{
 				fmt:    "KMSAN: %[1]v in %[3]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -983,7 +1008,7 @@ var linuxOopses = append([]*oops{
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
 						linuxRipFrame,
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -994,7 +1019,7 @@ var linuxOopses = append([]*oops{
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
 						linuxRipFrame,
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -1011,7 +1036,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "BUG: spinlock %[1]v in %[2]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"spin_"},
@@ -1023,7 +1048,7 @@ var linuxOopses = append([]*oops{
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
 						linuxRipFrame,
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					extractor: linuxStallFrameExtractor,
@@ -1041,9 +1066,15 @@ var linuxOopses = append([]*oops{
 				noStackTrace: true,
 			},
 			{
-				title:  compile("BUG: bad unlock balance detected!"),
-				report: compile("BUG: bad unlock balance detected!(?:.*\\n){0,15}?.*is trying to release lock(?:.*\\n){0,15}?.*{{PC}} +{{FUNC}}"),
-				fmt:    "BUG: bad unlock balance in %[1]v",
+				title: compile("BUG: bad unlock balance detected!"),
+				fmt:   "BUG: bad unlock balance in %[1]v",
+				stack: &stackFmt{
+					parts: []*regexp.Regexp{
+						compile("{{PC}} +{{FUNC}}"),
+						linuxCallTrace,
+						parseStackTrace,
+					},
+				},
 			},
 			{
 				title:  compile("BUG: held lock freed!"),
@@ -1087,7 +1118,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "BUG: sleeping function called from invalid context in %[2]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -1097,7 +1128,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "BUG: using %[1]v() in preemptible code in %[2]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"dump_stack", "preemption", "preempt", "debug_",
@@ -1136,6 +1167,19 @@ var linuxOopses = append([]*oops{
 				noStackTrace: true,
 			},
 			{
+				title: compile("BUG: Invalid wait context"),
+				// Somehow amd64 and arm64 report this bug completely differently.
+				// This is arm64 format, but we match amd64 title to not duplicate bug reports.
+				fmt: "WARNING: locking bug in %[1]v",
+				stack: &stackFmt{
+					parts: []*regexp.Regexp{
+						linuxCallTrace,
+						parseStackTrace,
+					},
+					skip: []string{"lock_sock", "release_sock"},
+				},
+			},
+			{
 				title:     compile(`BUG:[[:space:]]*(?:\n|$)`),
 				fmt:       "BUG: corrupted",
 				corrupted: true,
@@ -1190,6 +1234,11 @@ var linuxOopses = append([]*oops{
 				stack: warningStackFmt("lock_sock", "release_sock"),
 			},
 			{
+				title:  compile("WARNING: .*still has locks held!"),
+				report: compile("WARNING: .*still has locks held!(?:.*\\n)+?.*at: {{FUNC}}"),
+				fmt:    "WARNING: still has locks held in %[1]v",
+			},
+			{
 				title:        compile("WARNING: lock held when returning to user space"),
 				report:       compile("WARNING: lock held when returning to user space(?:.*\\n)+?.*leaving the kernel with locks still held(?:.*\\n)+?.*at: (?:{{PC}} +)?{{FUNC}}"),
 				fmt:          "WARNING: lock held when returning to user space in %[1]v",
@@ -1254,7 +1303,7 @@ var linuxOopses = append([]*oops{
 				fmt:    "WARNING: suspicious RCU usage in %[2]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"rcu", "kmem", "slab", "kmalloc",
@@ -1272,9 +1321,15 @@ var linuxOopses = append([]*oops{
 				noStackTrace: true,
 			},
 			{
-				title:  compile("WARNING: bad unlock balance detected!"),
-				report: compile("WARNING: bad unlock balance detected!(?:.*\\n){0,15}?.*is trying to release lock(?:.*\\n){0,15}?.*{{PC}} +{{FUNC}}"),
-				fmt:    "WARNING: bad unlock balance in %[1]v",
+				title: compile("WARNING: bad unlock balance detected!"),
+				fmt:   "WARNING: bad unlock balance in %[1]v",
+				stack: &stackFmt{
+					parts: []*regexp.Regexp{
+						compile("{{PC}} +{{FUNC}}"),
+						linuxCallTrace,
+						parseStackTrace,
+					},
+				},
 			},
 			{
 				title:  compile("WARNING: held lock freed!"),
@@ -1352,7 +1407,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "INFO: trying to register non-static key in %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"stack", "lock", "IRQ"},
@@ -1364,7 +1419,7 @@ var linuxOopses = append([]*oops{
 				fmt:    "INFO: suspicious RCU usage in %[2]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"rcu", "kmem", "slab", "kmalloc",
@@ -1376,7 +1431,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "INFO: task hung in %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					extractor: linuxHangTaskFrameExtractor,
@@ -1387,7 +1442,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "INFO: task can't die in %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"schedule"},
@@ -1420,9 +1475,14 @@ var linuxOopses = append([]*oops{
 		[]byte("Unable to handle kernel paging request"),
 		[]oopsFormat{
 			{
-				title:  compile("Unable to handle kernel paging request"),
-				report: compile("Unable to handle kernel paging request(?:.*\\n)+?.*PC is at {{FUNC}}"),
-				fmt:    "unable to handle kernel paging request in %[1]v",
+				title: compile("Unable to handle kernel paging request"),
+				fmt:   "BUG: unable to handle kernel paging request in %[1]v",
+				stack: &stackFmt{
+					parts: []*regexp.Regexp{
+						linuxCallTrace,
+						parseStackTrace,
+					},
+				},
 			},
 		},
 		[]*regexp.Regexp{},
@@ -1436,7 +1496,7 @@ var linuxOopses = append([]*oops{
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
 						linuxRipFrame,
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -1453,7 +1513,7 @@ var linuxOopses = append([]*oops{
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
 						linuxRipFrame,
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -1478,7 +1538,7 @@ var linuxOopses = append([]*oops{
 				fmt:    "kernel panic: stack is corrupted in %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"stack_chk"},
@@ -1490,7 +1550,7 @@ var linuxOopses = append([]*oops{
 				fmt:    "kernel panic: corrupted stack end in %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip:      []string{"schedule", "retint_kernel"},
@@ -1555,7 +1615,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "BUG: bad usercopy in %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"usercopy", "__check"},
@@ -1566,7 +1626,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "BUG: corrupted list in %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -1576,7 +1636,7 @@ var linuxOopses = append([]*oops{
 				fmt:   "kernel BUG at %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 				},
@@ -1659,7 +1719,7 @@ var linuxOopses = append([]*oops{
 				fmt:    "UBSAN: undefined-behaviour in %[1]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"ubsan", "overflow"},
@@ -1671,7 +1731,7 @@ var linuxOopses = append([]*oops{
 				fmt:    "UBSAN: %[1]v in %[2]v",
 				stack: &stackFmt{
 					parts: []*regexp.Regexp{
-						compile("Call Trace:"),
+						linuxCallTrace,
 						parseStackTrace,
 					},
 					skip: []string{"ubsan", "overflow"},
@@ -1703,6 +1763,54 @@ var linuxOopses = append([]*oops{
 		[]*regexp.Regexp{},
 	},
 	{
+		[]byte("Internal error:"),
+		[]oopsFormat{
+			{
+				title: compile("Internal error:"),
+				fmt:   "Internal error in %[1]v",
+				stack: &stackFmt{
+					parts: []*regexp.Regexp{
+						linuxCallTrace,
+						parseStackTrace,
+					},
+				},
+			},
+		},
+		[]*regexp.Regexp{},
+	},
+	{
+		[]byte("Unhandled fault:"),
+		[]oopsFormat{
+			{
+				title: compile("Unhandled fault:"),
+				fmt:   "Unhandled fault in %[1]v",
+				stack: &stackFmt{
+					parts: []*regexp.Regexp{
+						linuxCallTrace,
+						parseStackTrace,
+					},
+				},
+			},
+		},
+		[]*regexp.Regexp{},
+	},
+	{
+		[]byte("Alignment trap:"),
+		[]oopsFormat{
+			{
+				title: compile("Alignment trap:"),
+				fmt:   "Alignment trap in %[1]v",
+				stack: &stackFmt{
+					parts: []*regexp.Regexp{
+						linuxCallTrace,
+						parseStackTrace,
+					},
+				},
+			},
+		},
+		[]*regexp.Regexp{},
+	},
+	{
 		[]byte("trusty: panic"),
 		[]oopsFormat{
 			{
diff --git a/pkg/report/report.go b/pkg/report/report.go
index 13f76e67d..bd648e8ec 100644
--- a/pkg/report/report.go
+++ b/pkg/report/report.go
@@ -479,6 +479,9 @@ type stackParams struct {
 	// If we looked at any lines that match corruptedLines during report analysis,
 	// then the report is marked as corrupted.
 	corruptedLines []*regexp.Regexp
+	// Prefixes that need to be removed from frames.
+	// E.g. syscall prefixes as different arches have different prefixes.
+	stripFramePrefixes []string
 }
 
 func extractStackFrame(params *stackParams, stack *stackFmt, output []byte) (string, string) {
@@ -523,7 +526,7 @@ nextPart:
 						break
 					}
 				}
-				frames = appendStackFrame(frames, match, skipRe)
+				frames = appendStackFrame(frames, match, params, skipRe)
 			}
 		} else {
 			for s.Scan() {
@@ -535,7 +538,7 @@ nextPart:
 				if match == nil {
 					continue
 				}
-				frames = appendStackFrame(frames, match, skipRe)
+				frames = appendStackFrame(frames, match, params, skipRe)
 				break
 			}
 		}
@@ -546,13 +549,17 @@ nextPart:
 	return extractor(frames)
 }
 
-func appendStackFrame(frames []string, match [][]byte, skipRe *regexp.Regexp) []string {
+func appendStackFrame(frames []string, match [][]byte, params *stackParams, skipRe *regexp.Regexp) []string {
 	if len(match) < 2 {
 		return frames
 	}
 	for _, frame := range match[1:] {
 		if frame != nil && (skipRe == nil || !skipRe.Match(frame)) {
-			frames = append(frames, string(frame))
+			frameName := string(frame)
+			for _, prefix := range params.stripFramePrefixes {
+				frameName = strings.TrimPrefix(frameName, prefix)
+			}
+			frames = append(frames, frameName)
 			break
 		}
 	}
diff --git a/pkg/report/testdata/linux/report/102 b/pkg/report/testdata/linux/report/102
index 74473eac3..76447d888 100644
--- a/pkg/report/testdata/linux/report/102
+++ b/pkg/report/testdata/linux/report/102
@@ -1,4 +1,4 @@
-TITLE: BUG: bad unlock balance detected! ]
+TITLE: BUG: bad unlock balance in corrupted
 CORRUPTED: Y
 
 [   46.415093] syz2: link speed 10 Mbps
diff --git a/pkg/report/testdata/linux/report/115 b/pkg/report/testdata/linux/report/115
index 8ebd9beda..750ed9a58 100644
--- a/pkg/report/testdata/linux/report/115
+++ b/pkg/report/testdata/linux/report/115
@@ -1,4 +1,4 @@
-TITLE: BUG: bad unlock balance detected! ]
+TITLE: BUG: bad unlock balance in corrupted
 CORRUPTED: Y
 
 [   76.640408] binder: undelivered TRANSACTION_ERROR: 29189
diff --git a/pkg/report/testdata/linux/report/238 b/pkg/report/testdata/linux/report/238
index 45ee9ca96..857a3a9d1 100644
--- a/pkg/report/testdata/linux/report/238
+++ b/pkg/report/testdata/linux/report/238
@@ -1,4 +1,4 @@
-TITLE: Unable to handle kernel paging request at virtual address ADDR
+TITLE: BUG: unable to handle kernel paging request in corrupted
 CORRUPTED: Y
 
 Unable to handle kernel paging request at virtual address 80b0f484
diff --git a/pkg/report/testdata/linux/report/241 b/pkg/report/testdata/linux/report/241
index 97a186fb1..891cf28ad 100644
--- a/pkg/report/testdata/linux/report/241
+++ b/pkg/report/testdata/linux/report/241
@@ -1,4 +1,4 @@
-TITLE: kernel panic: Fatal exception
+TITLE: Unhandled fault in corrupted
 CORRUPTED: Y
 
 Unhandled fault: page domain fault (0x81b) at 0x00001044
diff --git a/pkg/report/testdata/linux/report/242 b/pkg/report/testdata/linux/report/242
index 08370411e..610131abf 100644
--- a/pkg/report/testdata/linux/report/242
+++ b/pkg/report/testdata/linux/report/242
@@ -1,4 +1,4 @@
-TITLE: kernel panic: Fatal exception
+TITLE: Alignment trap in corrupted
 CORRUPTED: Y
 
 Alignment trap: not handling instruction e1932f9f at [<8028bd58>]
diff --git a/pkg/report/testdata/linux/report/243 b/pkg/report/testdata/linux/report/243
index 78616d3ef..6dca35c42 100644
--- a/pkg/report/testdata/linux/report/243
+++ b/pkg/report/testdata/linux/report/243
@@ -1,4 +1,5 @@
-TITLE: unable to handle kernel paging request in migrate_task_rq_fair
+# TODO: this is uncorrupted ARM report.
+TITLE: BUG: unable to handle kernel paging request in corrupted
 CORRUPTED: Y
 
 syzkaller login: Unable to handle kernel paging request at virtual address fc14ef08
diff --git a/pkg/report/testdata/linux/report/378 b/pkg/report/testdata/linux/report/378
index 66dd079b3..3ef87c06f 100644
--- a/pkg/report/testdata/linux/report/378
+++ b/pkg/report/testdata/linux/report/378
@@ -1,4 +1,4 @@
-TITLE: INFO: rcu detected stall in inotify_init
+TITLE: INFO: rcu detected stall in sys_inotify_init
 TYPE: HANG
 
 [  990.309025][    C0] rcu: INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/45 b/pkg/report/testdata/linux/report/45
index 0e1c27412..77a7982ac 100644
--- a/pkg/report/testdata/linux/report/45
+++ b/pkg/report/testdata/linux/report/45
@@ -1,4 +1,4 @@
-TITLE: unable to handle kernel paging request in _snd_timer_stop
+TITLE: BUG: unable to handle kernel paging request in corrupted
 CORRUPTED: Y
 
 [  167.347989] Disabling lock debugging due to kernel taint
diff --git a/pkg/report/testdata/linux/report/46 b/pkg/report/testdata/linux/report/46
index 9bf1b2d47..75994778d 100644
--- a/pkg/report/testdata/linux/report/46
+++ b/pkg/report/testdata/linux/report/46
@@ -1,4 +1,4 @@
-TITLE: unable to handle kernel paging request in blk_rq_map_sg
+TITLE: BUG: unable to handle kernel paging request in corrupted
 CORRUPTED: Y
 
 [ 1722.511384] Unable to handle kernel paging request at virtual address 0c0c9ca0
diff --git a/pkg/report/testdata/linux/report/524 b/pkg/report/testdata/linux/report/524
new file mode 100644
index 000000000..c1e022c56
--- /dev/null
+++ b/pkg/report/testdata/linux/report/524
@@ -0,0 +1,37 @@
+TITLE: Internal error in ns558_init
+
+[  211.592905][    T1] Internal error: synchronous external abort: 96000010 [#1] PREEMPT SMP
+[  211.594621][    T1] Dumping ftrace buffer:
+[  211.596062][    T1]    (ftrace buffer empty)
+[  211.596883][    T1] Modules linked in:
+[  211.598101][    T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.9.0-12994-gf9893351acae #11
+[  211.598861][    T1] Hardware name: linux,dummy-virt (DT)
+[  211.599762][    T1] pstate: 40000005 (nZcv daif -PAN -UAO -TCO BTYPE=--)
+[  211.600602][    T1] pc : __raw_readb+0x18/0x2c
+[  211.601220][    T1] lr : __raw_readb+0x18/0x2c
+[  211.601722][    T1] sp : ffff0000401f7c40
+[  211.602276][    T1] x29: ffff0000401f7c40 x28: 0000000000000007 
+[  211.603165][    T1] x27: ffffa00017c462a0 x26: ffffa00017e310d8 
+[  211.603979][    T1] x25: 0000000000000201 x24: ffffa0001b484900 
+[  211.604829][    T1] x23: dfffa00000000000 x22: ffffa00016b39140 
+[  211.605882][    T1] x21: ffffa0001a3059e0 x20: 0000000000ffbffe 
+[  211.606753][    T1] x19: fffffdfffec00201 x18: 00000000000011d8 
+[  211.607569][    T1] x17: 0000000000001270 x16: 00000000000011e0 
+[  211.608388][    T1] x15: 0000000000001408 x14: ffffa0001012790c 
+[  211.609208][    T1] x13: ffffa000101275dc x12: ffff0000401e8000 
+[  211.610012][    T1] x11: 0000000000000007 x10: 0000000000ffbffe 
+[  211.610850][    T1] x9 : 0000000000000201 x8 : ffffa00011e6a1c4 
+[  211.611769][    T1] x7 : ffffa0001a305920 x6 : 0000000000000000 
+[  211.612591][    T1] x5 : ffff0000401e8000 x4 : ffffa00011e69e68 
+[  211.613386][    T1] x3 : ffff0000401e8000 x2 : 0000000000000000 
+[  211.614175][    T1] x1 : 0000000000000000 x0 : 0000000000000000 
+[  211.615210][    T1] Call trace:
+[  211.616071][    T1]  __raw_readb+0x18/0x2c
+[  211.616694][    T1]  logic_inb+0x50/0x13c
+[  211.617265][    T1]  ns558_init+0x17c/0x63c
+[  211.617822][    T1]  do_one_initcall+0x294/0x61c
+[  211.618467][    T1]  kernel_init_freeable+0x790/0x798
+[  211.619101][    T1]  kernel_init+0x18/0x1d4
+[  211.619667][    T1]  ret_from_fork+0x10/0x30
+[  211.620699][    T1] Code: 910003fd f9000bf3 aa0003f3 97932e41 (08dffe60) 
+[  211.622487][    T1] ---[ end trace ec5638d8e916ae8b ]---
diff --git a/pkg/report/testdata/linux/report/525 b/pkg/report/testdata/linux/report/525
new file mode 100644
index 000000000..88e0747c4
--- /dev/null
+++ b/pkg/report/testdata/linux/report/525
@@ -0,0 +1,88 @@
+TITLE: WARNING: ODEBUG bug in netdev_freemem
+
+[  775.101040][  T126] ------------[ cut here ]------------
+[  775.104725][  T126] ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90
+[  775.112723][  T126] WARNING: CPU: 0 PID: 126 at lib/debugobjects.c:505 debug_print_object+0x188/0x268
+[  775.114654][  T126] Modules linked in:
+[  775.116483][  T126] CPU: 0 PID: 126 Comm: kworker/u8:3 Not tainted 5.9.0-12994-gf9893351acae #15
+[  775.117494][  T126] Hardware name: linux,dummy-virt (DT)
+[  775.124422][  T126] Workqueue: netns cleanup_net
+[  775.126620][  T126] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--)
+[  775.127924][  T126] pc : debug_print_object+0x188/0x268
+[  775.129340][  T126] lr : debug_print_object+0x188/0x268
+[  775.130352][  T126] sp : ffff000040ddf5b0
+[  775.131234][  T126] x29: ffff000040ddf5b0 x28: ffff0000403d97e0 
+[  775.132846][  T126] x27: ffffa000177229c0 x26: dfffa00000000000 
+[  775.134179][  T126] x25: ffffa00010362e48 x24: ffffa00017bfdb40 
+[  775.135492][  T126] x23: ffffa000177229c0 x22: 0000000000000003 
+[  775.136916][  T126] x21: ffffa00017bfd340 x20: ffffa00019590218 
+[  775.138465][  T126] x19: ffff0000403d97e0 x18: ffff00006a1ce448 
+[  775.140281][  T126] x17: 0000000000000000 x16: 0000000000000000 
+[  775.142963][  T126] x15: 0000000000000001 x14: ffff000040dd0000 
+[  775.144556][  T126] x13: 0000000000000001 x12: ffff80000d439ca4 
+[  775.147130][  T126] x11: 1fffe0000d439ca3 x10: ffff80000d439ca3 
+[  775.149382][  T126] x9 : dfffa00000000000 x8 : ffff00006a1ce51b 
+[  775.150784][  T126] x7 : 0000000000000001 x6 : ffff00006a1ce518 
+[  775.152146][  T126] x5 : ffff000040dd0000 x4 : 0000000000000000 
+[  775.153573][  T126] x3 : ffffa000102ef6b0 x2 : ffff8000081bbe7e 
+[  775.154824][  T126] x1 : ec91fe872c83d400 x0 : 0000000000000000 
+[  775.156705][  T126] Call trace:
+[  775.158009][  T126]  debug_print_object+0x188/0x268
+[  775.159058][  T126]  debug_check_no_obj_freed+0x200/0x438
+[  775.160743][  T126]  slab_free_freelist_hook+0x174/0x1f8
+[  775.161760][  T126]  kfree+0x12c/0x4b8
+[  775.162627][  T126]  kvfree+0x60/0x78
+[  775.163497][  T126]  netdev_freemem+0x4c/0x68
+[  775.164302][  T126]  netdev_release+0x84/0xb0
+[  775.165232][  T126]  device_release+0x8c/0x1f0
+[  775.166582][  T126]  kobject_put+0x1a4/0x570
+[  775.167636][  T126]  netdev_run_todo+0x5f8/0x8b0
+[  775.168683][  T126]  rtnl_unlock+0x14/0x20
+[  775.170440][  T126]  default_device_exit_batch+0x294/0x330
+[  775.172526][  T126]  ops_exit_list.isra.0+0xe4/0x148
+[  775.173426][  T126]  cleanup_net+0x444/0x880
+[  775.174258][  T126]  process_one_work+0x898/0x1af8
+[  775.175130][  T126]  worker_thread+0x3e8/0xc28
+[  775.175946][  T126]  kthread+0x30c/0x408
+[  775.176830][  T126]  ret_from_fork+0x10/0x30
+[  775.178544][  T126] Kernel panic - not syncing: panic_on_warn set ...
+[  775.179936][  T126] CPU: 0 PID: 126 Comm: kworker/u8:3 Not tainted 5.9.0-12994-gf9893351acae #15
+[  775.180903][  T126] Hardware name: linux,dummy-virt (DT)
+[  775.181830][  T126] Workqueue: netns cleanup_net
+[  775.182920][  T126] Call trace:
+[  775.183708][  T126]  dump_backtrace+0x0/0x4d0
+[  775.184523][  T126]  show_stack+0x2c/0x80
+[  775.185469][  T126]  dump_stack+0x1b0/0x254
+[  775.187194][  T126]  panic+0x3d0/0x7fc
+[  775.188630][  T126]  __warn+0x254/0x2e8
+[  775.189853][  T126]  report_bug+0x240/0x398
+[  775.190728][  T126]  bug_handler+0x48/0xb8
+[  775.192571][  T126]  brk_handler+0x15c/0x2a8
+[  775.193482][  T126]  do_debug_exception+0x204/0x6d0
+[  775.194321][  T126]  el1_sync_handler+0x174/0x260
+[  775.195145][  T126]  el1_sync+0x80/0x100
+[  775.196072][  T126]  debug_print_object+0x188/0x268
+[  775.197021][  T126]  debug_check_no_obj_freed+0x200/0x438
+[  775.198072][  T126]  slab_free_freelist_hook+0x174/0x1f8
+[  775.199157][  T126]  kfree+0x12c/0x4b8
+[  775.200018][  T126]  kvfree+0x60/0x78
+[  775.200908][  T126]  netdev_freemem+0x4c/0x68
+[  775.201774][  T126]  netdev_release+0x84/0xb0
+[  775.202683][  T126]  device_release+0x8c/0x1f0
+[  775.203555][  T126]  kobject_put+0x1a4/0x570
+[  775.204412][  T126]  netdev_run_todo+0x5f8/0x8b0
+[  775.205295][  T126]  rtnl_unlock+0x14/0x20
+[  775.207013][  T126]  default_device_exit_batch+0x294/0x330
+[  775.209076][  T126]  ops_exit_list.isra.0+0xe4/0x148
+[  775.210660][  T126]  cleanup_net+0x444/0x880
+[  775.211567][  T126]  process_one_work+0x898/0x1af8
+[  775.212461][  T126]  worker_thread+0x3e8/0xc28
+[  775.213349][  T126]  kthread+0x30c/0x408
+[  775.213905][  T126]  ret_from_fork+0x10/0x30
+[  775.216521][  T126] SMP: stopping secondary CPUs
+[  775.220505][  T126] Dumping ftrace buffer:
+[  775.224102][  T126]    (ftrace buffer empty)
+[  775.226537][  T126] Kernel Offset: disabled
+[  775.228303][  T126] CPU features: 0x0240022,61002082
+[  775.229604][  T126] Memory Limit: none
+[  775.233306][  T126] Rebooting in 1 seconds..
diff --git a/pkg/report/testdata/linux/report/526 b/pkg/report/testdata/linux/report/526
new file mode 100644
index 000000000..88cc63750
--- /dev/null
+++ b/pkg/report/testdata/linux/report/526
@@ -0,0 +1,42 @@
+TITLE: INFO: task hung in register_netdevice_notifier
+TYPE: HANG
+
+[  610.334229][ T1478] INFO: task syz-fuzzer:4433 blocked for more than 143 seconds.
+[  610.337281][ T1478]       Not tainted 5.9.0-12994-gf9893351acae #15
+[  610.338689][ T1478] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
+[  610.361669][ T1478] task:syz-fuzzer      state:D stack:    0 pid: 4433 ppid:  4402 flags:0x00000001
+[  610.364848][ T1478] Call trace:
+[  610.366182][ T1478]  __switch_to+0x210/0x450
+[  610.367628][ T1478]  __schedule+0x894/0x1eb8
+[  610.368937][ T1478]  schedule+0xac/0x228
+[  610.371513][ T1478]  rwsem_down_write_slowpath+0x604/0xc98
+[  610.373033][ T1478]  down_write+0x134/0x1f0
+[  610.374427][ T1478]  register_netdevice_notifier+0x38/0x238
+[  610.375901][ T1478]  bcm_init+0x144/0x1b8
+[  610.377193][ T1478]  can_create+0x244/0x498
+[  610.378892][ T1478]  __sock_create+0x3ec/0x740
+[  610.401364][ T1478]  __sys_socket+0xf0/0x208
+[  610.403935][ T1478]  __arm64_sys_socket+0x70/0xa8
+[  610.405432][ T1478]  el0_svc_common.constprop.0+0x158/0x530
+[  610.406871][ T1478]  do_el0_svc+0x58/0x148
+[  610.408121][ T1478]  el0_sync_handler+0x1f4/0x200
+[  610.409317][ T1478]  el0_sync+0x174/0x180
+[  610.412964][ T1478] 
+[  610.412964][ T1478] Showing all locks held in the system:
+[  610.415916][ T1478] 4 locks held by kworker/u8:0/7:
+[  610.417901][ T1478] 1 lock held by khungtaskd/1478:
+[  610.419240][ T1478]  #0: ffffa00019769560 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x70/0x258
+[  610.446034][ T1478] 3 locks held by kworker/3:1/1855:
+[  610.447236][ T1478]  #0: ffff000040020d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x76c/0x1af8
+[  610.472660][ T1478]  #1: ffff000040c5fd40 ((work_completion)(&fqdir->destroy_work)){+.+.}-{0:0}, at: process_one_work+0x76c/0x1af8
+[  610.476736][ T1478]  #2: ffffa0001976f170 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x528
+[  610.484255][ T1478] 1 lock held by klogd/4083:
+[  610.486172][ T1478] 1 lock held by dhcpcd/4135:
+[  610.487825][ T1478]  #0: ffff000049d2c120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xea8
+[  610.494582][ T1478] 2 locks held by getty/4253:
+[  610.499360][ T1478]  #0: ffff00004aeec098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x44/0x58
+[  610.535135][ T1478]  #1: ffffa0001e3fc2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x1d0/0x1bd8
+[  610.539204][ T1478] 1 lock held by syz-fuzzer/4433:
+[  610.561088][ T1478]  #0: ffffa0001ad1ceb0 (pernet_ops_rwsem){++++}-{3:3}, at: register_netdevice_notifier+0x38/0x238
+[  610.566582][ T1478] 
+[  610.624513][ T1478] =============================================
diff --git a/pkg/report/testdata/linux/report/527 b/pkg/report/testdata/linux/report/527
new file mode 100644
index 000000000..0f0bfc288
--- /dev/null
+++ b/pkg/report/testdata/linux/report/527
@@ -0,0 +1,31 @@
+TITLE: WARNING: suspicious RCU usage in gc_worker
+
+[  388.069210][  T178] =============================
+[  388.070602][  T178] WARNING: suspicious RCU usage
+[  388.072159][  T178] 5.9.0-12994-gf9893351acae #15 Not tainted
+[  388.073462][  T178] -----------------------------
+[  388.074687][  T178] kernel/sched/core.c:7264 Illegal context switch in RCU-sched read-side critical section!
+[  388.075918][  T178] 
+[  388.075918][  T178] other info that might help us debug this:
+[  388.075918][  T178] 
+[  388.120354][  T178] 
+[  388.120354][  T178] rcu_scheduler_active = 2, debug_locks = 1
+[  388.122051][  T178] 2 locks held by kworker/u4:4/178:
+[  388.123408][  T178]  #0: ffff00004002a138 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x76c/0x1af8
+[  388.179802][  T178]  #1: ffff000040ecfd40 ((work_completion)(&(&gc_work->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x76c/0x1af8
+[  388.182417][  T178] 
+[  388.182417][  T178] stack backtrace:
+[  388.183605][  T178] CPU: 1 PID: 178 Comm: kworker/u4:4 Not tainted 5.9.0-12994-gf9893351acae #15
+[  388.184315][  T178] Hardware name: linux,dummy-virt (DT)
+[  388.185529][  T178] Workqueue: events_power_efficient gc_worker
+[  388.186616][  T178] Call trace:
+[  388.187209][  T178]  dump_backtrace+0x0/0x4d0
+[  388.187731][  T178]  show_stack+0x2c/0x80
+[  388.188239][  T178]  dump_stack+0x1b0/0x254
+[  388.188785][  T178]  lockdep_rcu_suspicious+0x134/0x14c
+[  388.189324][  T178]  ___might_sleep+0x440/0x4d8
+[  388.189868][  T178]  gc_worker+0x4bc/0xaa0
+[  388.190456][  T178]  process_one_work+0x898/0x1af8
+[  388.191026][  T178]  worker_thread+0x3e8/0xc28
+[  388.191549][  T178]  kthread+0x30c/0x408
+[  388.192118][  T178]  ret_from_fork+0x10/0x30
diff --git a/pkg/report/testdata/linux/report/528 b/pkg/report/testdata/linux/report/528
new file mode 100644
index 000000000..ce9e453a2
--- /dev/null
+++ b/pkg/report/testdata/linux/report/528
@@ -0,0 +1,32 @@
+TITLE: WARNING: locking bug in do_ipv6_setsockopt
+
+[  513.624689][ T4448] =============================
+[  513.625024][ T4448] [ BUG: Invalid wait context ]
+[  513.625454][ T4448] 5.9.0-12994-gf9893351acae #15 Not tainted
+[  513.625876][ T4448] -----------------------------
+[  513.626258][ T4448] syz-executor.0/4448 is trying to lock:
+[  513.626811][ T4448] ffff00004a747498 (&mm->mmap_lock){++++}-{3:3}, at: __might_fault+0x108/0x1b0
+[  513.628246][ T4448] other info that might help us debug this:
+[  513.628677][ T4448] context-{4:4}
+[  513.629067][ T4448] 1 lock held by syz-executor.0/4448:
+[  513.629453][ T4448]  #0: ffffa00019769560 (rcu_read_lock){....}-{1:2}, at: count_memcg_event_mm+0x24/0x2f0
+[  513.630554][ T4448] stack backtrace:
+[  513.631277][ T4448] CPU: 0 PID: 4448 Comm: syz-executor.0 Not tainted 5.9.0-12994-gf9893351acae #15
+[  513.631738][ T4448] Hardware name: linux,dummy-virt (DT)
+[  513.632435][ T4448] Call trace:
+[  513.632830][ T4448]  dump_backtrace+0x0/0x4d0
+[  513.633216][ T4448]  show_stack+0x2c/0x80
+[  513.633605][ T4448]  dump_stack+0x1b0/0x254
+[  513.633979][ T4448]  __lock_acquire+0x1a04/0x4930
+[  513.634359][ T4448]  lock_acquire+0x278/0xb88
+[  513.634769][ T4448]  __might_fault+0x138/0x1b0
+[  513.635149][ T4448]  do_ipv6_setsockopt.isra.0+0x4a8/0x4738
+[  513.635538][ T4448]  ipv6_setsockopt+0x124/0x408
+[  513.635909][ T4448]  tcp_setsockopt+0x120/0x2548
+[  513.636279][ T4448]  sock_common_setsockopt+0xa8/0xe0
+[  513.636670][ T4448]  __sys_setsockopt+0x1f8/0x470
+[  513.637057][ T4448]  __arm64_sys_setsockopt+0xa8/0x108
+[  513.637464][ T4448]  el0_svc_common.constprop.0+0x158/0x530
+[  513.637904][ T4448]  do_el0_svc+0x58/0x148
+[  513.638295][ T4448]  el0_sync_handler+0x1f4/0x200
+[  513.638674][ T4448]  el0_sync+0x174/0x180
diff --git a/pkg/report/testdata/linux/report/529 b/pkg/report/testdata/linux/report/529
new file mode 100644
index 000000000..30eefd426
--- /dev/null
+++ b/pkg/report/testdata/linux/report/529
@@ -0,0 +1,30 @@
+TITLE: WARNING: suspicious RCU usage in sys_rt_sigreturn
+
+[  581.924125][ T4410] =============================
+[  581.925315][ T4410] WARNING: suspicious RCU usage
+[  581.926740][ T4410] 5.9.0-12994-gf9893351acae #15 Not tainted
+[  582.016302][ T4410] -----------------------------
+[  582.017910][ T4410] kernel/sched/core.c:7264 Illegal context switch in RCU-bh read-side critical section!
+[  582.023295][ T4410] 
+[  582.023295][ T4410] other info that might help us debug this:
+[  582.023295][ T4410] 
+[  582.025057][ T4410] 
+[  582.025057][ T4410] rcu_scheduler_active = 2, debug_locks = 1
+[  582.044500][ T4410] no locks held by syz-fuzzer/4410.
+[  582.045998][ T4410] 
+[  582.045998][ T4410] stack backtrace:
+[  582.047912][ T4410] CPU: 0 PID: 4410 Comm: syz-fuzzer Not tainted 5.9.0-12994-gf9893351acae #15
+[  582.049096][ T4410] Hardware name: linux,dummy-virt (DT)
+[  582.050721][ T4410] Call trace:
+[  582.051777][ T4410]  dump_backtrace+0x0/0x4d0
+[  582.052754][ T4410]  show_stack+0x2c/0x80
+[  582.053616][ T4410]  dump_stack+0x1b0/0x254
+[  582.054527][ T4410]  lockdep_rcu_suspicious+0x134/0x14c
+[  582.055451][ T4410]  ___might_sleep+0x478/0x4d8
+[  582.056345][ T4410]  __might_sleep+0x88/0x168
+[  582.057285][ T4410]  __might_fault+0xc4/0x1b0
+[  582.058241][ T4410]  __arm64_sys_rt_sigreturn+0x278/0x1990
+[  582.059448][ T4410]  el0_svc_common.constprop.0+0x158/0x530
+[  582.060390][ T4410]  do_el0_svc+0x58/0x148
+[  582.061327][ T4410]  el0_sync_handler+0x1f4/0x200
+[  582.062214][ T4410]  el0_sync+0x174/0x180
diff --git a/pkg/report/testdata/linux/report/530 b/pkg/report/testdata/linux/report/530
new file mode 100644
index 000000000..ff8ca4f19
--- /dev/null
+++ b/pkg/report/testdata/linux/report/530
@@ -0,0 +1,29 @@
+TITLE: WARNING: bad unlock balance in restore_fpsimd_context
+
+[  753.902734][ T4405] =====================================
+[  753.903682][ T4405] WARNING: bad unlock balance detected!
+[  753.904679][ T4405] 5.9.0-12994-gf9893351acae #15 Not tainted
+[  753.905336][ T4405] -------------------------------------
+[  753.905757][ T4405] syz-fuzzer/4405 is trying to release lock (&mm->mmap_lock) at:
+[  753.906721][ T4405] [<ffffa00010726344>] __might_fault+0x154/0x1b0
+[  753.907110][ T4405] but there are no more locks to release!
+[  753.907490][ T4405] 
+[  753.907490][ T4405] other info that might help us debug this:
+[  753.908261][ T4405] no locks held by syz-fuzzer/4405.
+[  753.908865][ T4405] 
+[  753.908865][ T4405] stack backtrace:
+[  753.910040][ T4405] CPU: 1 PID: 4405 Comm: syz-fuzzer Not tainted 5.9.0-12994-gf9893351acae #15
+[  753.910746][ T4405] Hardware name: linux,dummy-virt (DT)
+[  753.911978][ T4405] Call trace:
+[  753.912644][ T4405]  dump_backtrace+0x0/0x4d0
+[  753.913320][ T4405]  show_stack+0x2c/0x80
+[  753.914002][ T4405]  dump_stack+0x1b0/0x254
+[  753.914652][ T4405]  print_unlock_imbalance_bug+0x170/0x188
+[  753.915352][ T4405]  lock_release+0x69c/0xa68
+[  753.916058][ T4405]  __might_fault+0x170/0x1b0
+[  753.916798][ T4405]  restore_fpsimd_context+0x418/0x798
+[  753.917532][ T4405]  __arm64_sys_rt_sigreturn+0x15d0/0x1990
+[  753.918229][ T4405]  el0_svc_common.constprop.0+0x158/0x530
+[  753.918921][ T4405]  do_el0_svc+0x58/0x148
+[  753.919594][ T4405]  el0_sync_handler+0x1f4/0x200
+[  753.920423][ T4405]  el0_sync+0x174/0x180
diff --git a/pkg/report/testdata/linux/report/531 b/pkg/report/testdata/linux/report/531
new file mode 100644
index 000000000..75271ff05
--- /dev/null
+++ b/pkg/report/testdata/linux/report/531
@@ -0,0 +1,29 @@
+TITLE: WARNING: locking bug in kernel_wait4
+
+[  483.562491][ T4115] =============================
+[  483.563138][ T4115] [ BUG: Invalid wait context ]
+[  483.563925][ T4115] 5.9.0-12994-gf9893351acae #15 Not tainted
+[  483.564520][ T4115] -----------------------------
+[  483.565141][ T4115] dhcpcd/4115 is trying to lock:
+[  483.566013][ T4115] ffff000041e68118 (&mm->mmap_lock){++++}-{3:3}, at: __might_fault+0x108/0x1b0
+[  483.568509][ T4115] other info that might help us debug this:
+[  483.569246][ T4115] context-{4:4}
+[  483.569886][ T4115] 1 lock held by dhcpcd/4115:
+[  483.570483][ T4115]  #0: ffffa00019769560 (rcu_read_lock){....}-{1:2}, at: count_memcg_event_mm+0x24/0x2f0
+[  483.572502][ T4115] stack backtrace:
+[  483.573642][ T4115] CPU: 0 PID: 4115 Comm: dhcpcd Not tainted 5.9.0-12994-gf9893351acae #15
+[  483.574478][ T4115] Hardware name: linux,dummy-virt (DT)
+[  483.575747][ T4115] Call trace:
+[  483.576425][ T4115]  dump_backtrace+0x0/0x4d0
+[  483.577101][ T4115]  show_stack+0x2c/0x80
+[  483.577800][ T4115]  dump_stack+0x1b0/0x254
+[  483.578478][ T4115]  __lock_acquire+0x1a04/0x4930
+[  483.579234][ T4115]  lock_acquire+0x278/0xb88
+[  483.579965][ T4115]  __might_fault+0x138/0x1b0
+[  483.580648][ T4115]  kernel_wait4+0x174/0x368
+[  483.581356][ T4115]  __do_sys_wait4+0x210/0x2b8
+[  483.582036][ T4115]  __arm64_sys_wait4+0x8c/0xd0
+[  483.582872][ T4115]  el0_svc_common.constprop.0+0x158/0x530
+[  483.583669][ T4115]  do_el0_svc+0x58/0x148
+[  483.584310][ T4115]  el0_sync_handler+0x1f4/0x200
+[  483.584953][ T4115]  el0_sync+0x174/0x180
diff --git a/pkg/report/testdata/linux/report/532 b/pkg/report/testdata/linux/report/532
new file mode 100644
index 000000000..9524db19d
--- /dev/null
+++ b/pkg/report/testdata/linux/report/532
@@ -0,0 +1,20 @@
+TITLE: WARNING: still has locks held in count_memcg_event_mm
+
+[  826.523990][ T4398] ====================================
+[  826.525201][ T4398] WARNING: syz-fuzzer/4398 still has locks held!
+[  826.526227][ T4398] 5.9.0-12994-gf9893351acae #15 Not tainted
+[  826.527205][ T4398] ------------------------------------
+[  826.528205][ T4398] 1 lock held by syz-fuzzer/4398:
+[  826.573908][ T4398]  #0: ffffa00019769560 (rcu_read_lock){....}-{1:2}, at: count_memcg_event_mm+0x24/0x2f0
+[  826.577778][ T4398] 
+[  826.577778][ T4398] stack backtrace:
+[  826.578731][ T4398] CPU: 1 PID: 4398 Comm: syz-fuzzer Not tainted 5.9.0-12994-gf9893351acae #15
+[  826.579661][ T4398] Hardware name: linux,dummy-virt (DT)
+[  826.580250][ T4398] Call trace:
+[  826.580864][ T4398]  dump_backtrace+0x0/0x4d0
+[  826.581516][ T4398]  show_stack+0x2c/0x80
+[  826.582158][ T4398]  dump_stack+0x1b0/0x254
+[  826.582822][ T4398]  debug_check_no_locks_held+0x110/0x130
+[  826.583509][ T4398]  get_signal+0x1a94/0x2400
+[  826.584037][ T4398]  do_notify_resume+0x4e0/0xd50
+[  826.584568][ T4398]  work_pending+0x8/0x34c
diff --git a/pkg/report/testdata/linux/report/533 b/pkg/report/testdata/linux/report/533
new file mode 100644
index 000000000..3633148a2
--- /dev/null
+++ b/pkg/report/testdata/linux/report/533
@@ -0,0 +1,29 @@
+TITLE: WARNING: still has locks held in prepare_bprm_creds
+
+[   40.588118] ====================================
+[   40.592858] WARNING: syz-executor286/6054 still has locks held!
+[   40.599288] 4.20.0-rc5+ #141 Not tainted
+[   40.603345] ------------------------------------
+[   40.608177] 1 lock held by syz-executor286/6054:
+[   40.612959]  #0: 000000009ccdb9e0 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120
+[   40.622176] 
+[   40.622176] stack backtrace:
+[   40.626781] CPU: 0 PID: 6054 Comm: syz-executor286 Not tainted 4.20.0-rc5+ #141
+[   40.634221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[   40.643559] Call Trace:
+[   40.646140]  dump_stack+0x244/0x39d
+[   40.658840]  debug_check_no_locks_held.cold.49+0x93/0x9f
+[   40.664291]  flush_old_exec+0x1ea2/0x2480
+[   40.753368]  load_elf_binary+0xa9a/0x5cf0
+[   40.778064]  search_binary_handler+0x17d/0x570
+[   40.782638]  __do_execve_file.isra.33+0x1661/0x25d0
+[   40.835388]  __x64_sys_execveat+0xed/0x130
+[   40.839619]  do_syscall_64+0x1b9/0x820
+[   40.878500]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
+[   40.883678] RIP: 0033:0x445789
+[   40.886862] Code: e8 6c b6 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b 12 fc ff c3 66 2e 0f 1f 84 00 00 00 00
+[   40.905750] RSP: 002b:00007f30e3e86db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000142
+[   40.913446] RAX: ffffffffffffffda RBX: 00000000006dac28 RCX: 0000000000445789
+[   40.920707] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
+[   40.927988] RBP: 00000000006dac20 R08: 0000000000001000 R09: 0000000000000000
+[   40.935246] R10: 0000000000000
diff --git a/pkg/report/testdata/linux/report/534 b/pkg/report/testdata/linux/report/534
new file mode 100644
index 000000000..88cc63750
--- /dev/null
+++ b/pkg/report/testdata/linux/report/534
@@ -0,0 +1,42 @@
+TITLE: INFO: task hung in register_netdevice_notifier
+TYPE: HANG
+
+[  610.334229][ T1478] INFO: task syz-fuzzer:4433 blocked for more than 143 seconds.
+[  610.337281][ T1478]       Not tainted 5.9.0-12994-gf9893351acae #15
+[  610.338689][ T1478] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
+[  610.361669][ T1478] task:syz-fuzzer      state:D stack:    0 pid: 4433 ppid:  4402 flags:0x00000001
+[  610.364848][ T1478] Call trace:
+[  610.366182][ T1478]  __switch_to+0x210/0x450
+[  610.367628][ T1478]  __schedule+0x894/0x1eb8
+[  610.368937][ T1478]  schedule+0xac/0x228
+[  610.371513][ T1478]  rwsem_down_write_slowpath+0x604/0xc98
+[  610.373033][ T1478]  down_write+0x134/0x1f0
+[  610.374427][ T1478]  register_netdevice_notifier+0x38/0x238
+[  610.375901][ T1478]  bcm_init+0x144/0x1b8
+[  610.377193][ T1478]  can_create+0x244/0x498
+[  610.378892][ T1478]  __sock_create+0x3ec/0x740
+[  610.401364][ T1478]  __sys_socket+0xf0/0x208
+[  610.403935][ T1478]  __arm64_sys_socket+0x70/0xa8
+[  610.405432][ T1478]  el0_svc_common.constprop.0+0x158/0x530
+[  610.406871][ T1478]  do_el0_svc+0x58/0x148
+[  610.408121][ T1478]  el0_sync_handler+0x1f4/0x200
+[  610.409317][ T1478]  el0_sync+0x174/0x180
+[  610.412964][ T1478] 
+[  610.412964][ T1478] Showing all locks held in the system:
+[  610.415916][ T1478] 4 locks held by kworker/u8:0/7:
+[  610.417901][ T1478] 1 lock held by khungtaskd/1478:
+[  610.419240][ T1478]  #0: ffffa00019769560 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x70/0x258
+[  610.446034][ T1478] 3 locks held by kworker/3:1/1855:
+[  610.447236][ T1478]  #0: ffff000040020d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x76c/0x1af8
+[  610.472660][ T1478]  #1: ffff000040c5fd40 ((work_completion)(&fqdir->destroy_work)){+.+.}-{0:0}, at: process_one_work+0x76c/0x1af8
+[  610.476736][ T1478]  #2: ffffa0001976f170 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x528
+[  610.484255][ T1478] 1 lock held by klogd/4083:
+[  610.486172][ T1478] 1 lock held by dhcpcd/4135:
+[  610.487825][ T1478]  #0: ffff000049d2c120 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x48/0xea8
+[  610.494582][ T1478] 2 locks held by getty/4253:
+[  610.499360][ T1478]  #0: ffff00004aeec098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x44/0x58
+[  610.535135][ T1478]  #1: ffffa0001e3fc2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x1d0/0x1bd8
+[  610.539204][ T1478] 1 lock held by syz-fuzzer/4433:
+[  610.561088][ T1478]  #0: ffffa0001ad1ceb0 (pernet_ops_rwsem){++++}-{3:3}, at: register_netdevice_notifier+0x38/0x238
+[  610.566582][ T1478] 
+[  610.624513][ T1478] =============================================
diff --git a/pkg/report/testdata/linux/report/535 b/pkg/report/testdata/linux/report/535
new file mode 100644
index 000000000..8e25f4ced
--- /dev/null
+++ b/pkg/report/testdata/linux/report/535
@@ -0,0 +1,152 @@
+TITLE: BUG: soft lockup in ip_list_rcv
+TYPE: HANG
+
+[  637.311457][    C0] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ksoftirqd/0:9]
+[  637.387608][    C0] Modules linked in:
+[  637.445248][    C0] irq event stamp: 83253
+[  637.461076][    C0] hardirqs last  enabled at (83252): [<ffffa0001768a558>] _raw_spin_unlock_irqrestore+0xd8/0x110
+[  637.462474][    C0] hardirqs last disabled at (83253): [<ffffa00010004ac0>] el1_irq+0x80/0x180
+[  637.463788][    C0] softirqs last  enabled at (79846): [<ffffa000100029f4>] _stext+0x9f4/0x1098
+[  637.465040][    C0] softirqs last disabled at (79849): [<ffffa0001018d560>] irq_exit+0x470/0x540
+[  637.466599][    C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.9.0-12994-gf9893351acae #15
+[  637.467605][    C0] Hardware name: linux,dummy-virt (DT)
+[  637.469106][    C0] pstate: 10000005 (nzcV daif -PAN -UAO -TCO BTYPE=--)
+[  637.470521][    C0] pc : _raw_spin_unlock_irqrestore+0x74/0x110
+[  637.471589][    C0] lr : _raw_spin_unlock_irqrestore+0xd8/0x110
+[  637.472533][    C0] sp : ffff00006a238e50
+[  637.473461][    C0] x29: ffff00006a238e50 x28: ffff000047654508 
+[  637.475049][    C0] x27: 0000000000000002 x26: dfffa00000000000 
+[  637.476402][    C0] x25: 0000000000000002 x24: ffffa0001bf00be0 
+[  637.477749][    C0] x23: ffffa0001c0187d0 x22: ffffa0001b2f2000 
+[  637.479178][    C0] x21: ffffa0001c0187b8 x20: 0000000000000000 
+[  637.480586][    C0] x19: ffffa000127d3e1c x18: ffff00006a247448 
+[  637.481959][    C0] x17: 0000000000000000 x16: 0000000000000000 
+[  637.483293][    C0] x15: 0000000000000001 x14: ffff000040248000 
+[  637.484603][    C0] x13: 0000000000000001 x12: ffff80000d4471b1 
+[  637.485880][    C0] x11: 1fffe0000d4471b0 x10: ffff80000d4471b0 
+[  637.487295][    C0] x9 : dfffa00000000000 x8 : 00000000f3000000 
+[  637.488520][    C0] x7 : 00000000f3f3f3f3 x6 : dfffa00000000000 
+[  637.490022][    C0] x5 : ffff000040248000 x4 : 0000000000000000 
+[  637.491310][    C0] x3 : ffffa0001766a154 x2 : 0000000000000001 
+[  637.492655][    C0] x1 : ffff000040248000 x0 : 0000000000014534 
+[  637.494411][    C0] Call trace:
+[  637.495455][    C0]  _raw_spin_unlock_irqrestore+0x74/0x110
+[  637.496383][    C0]  debug_check_no_obj_freed+0x234/0x438
+[  637.497375][    C0]  slab_free_freelist_hook+0x174/0x1f8
+[  637.498341][    C0]  kmem_cache_free+0xac/0x4f8
+[  637.499331][    C0]  kfree_skbmem+0x1b8/0x1f8
+[  637.500330][    C0]  consume_skb+0x13c/0x680
+[  637.501265][    C0]  __dev_kfree_skb_any+0xb0/0xd0
+[  637.502164][    C0]  napi_consume_skb+0x5f0/0x850
+[  637.503150][    C0]  free_old_xmit_skbs+0xf8/0x258
+[  637.504026][    C0]  start_xmit+0x138/0x1530
+[  637.504857][    C0]  dev_hard_start_xmit+0x204/0xde0
+[  637.505756][    C0]  sch_direct_xmit+0x278/0x488
+[  637.506639][    C0]  __qdisc_run+0x44c/0x1da0
+[  637.507482][    C0]  __dev_queue_xmit+0x2164/0x30d0
+[  637.508333][    C0]  dev_queue_xmit+0x24/0x38
+[  637.509259][    C0]  ip_finish_output2+0x1010/0x2578
+[  637.510224][    C0]  __ip_finish_output+0x58c/0xb20
+[  637.511121][    C0]  ip_finish_output+0x40/0x1f8
+[  637.512009][    C0]  ip_output+0x3a0/0x858
+[  637.512863][    C0]  ip_local_out+0xbc/0x1a8
+[  637.513693][    C0]  __ip_queue_xmit+0x654/0x1698
+[  637.514552][    C0]  ip_queue_xmit+0x5c/0x78
+[  637.515395][    C0]  __tcp_transmit_skb+0x1614/0x3688
+[  637.516280][    C0]  __tcp_send_ack.part.0+0x36c/0x678
+[  637.517094][    C0]  tcp_send_ack+0x8c/0xb0
+[  637.517957][    C0]  __tcp_ack_snd_check+0x13c/0x8d0
+[  637.518847][    C0]  tcp_rcv_established+0x1ae4/0x21a0
+[  637.519789][    C0]  tcp_v4_do_rcv+0x724/0xa78
+[  637.520701][    C0]  tcp_v4_rcv+0x2a68/0x33a0
+[  637.521607][    C0]  ip_protocol_deliver_rcu+0x6c/0x868
+[  637.522484][    C0]  ip_local_deliver_finish+0x1e0/0x350
+[  637.523374][    C0]  ip_local_deliver+0x370/0x4b8
+[  637.524224][    C0]  ip_sublist_rcv_finish+0x12c/0x278
+[  637.525057][    C0]  ip_sublist_rcv+0x48c/0x868
+[  637.525948][    C0]  ip_list_rcv+0x2c4/0x418
+[  637.526879][    C0]  __netif_receive_skb_list_core+0x450/0x740
+[  637.527837][    C0]  netif_receive_skb_list_internal+0x558/0xb20
+[  637.528779][    C0]  gro_normal_list.part.0+0x24/0xb0
+[  637.529675][    C0]  net_rx_action+0xcbc/0x1268
+[  637.530599][    C0]  _stext+0x29c/0x1098
+[  637.531506][    C0]  irq_exit+0x470/0x540
+[  637.532402][    C0]  __handle_domain_irq+0xfc/0x1d0
+[  637.533350][    C0]  gic_handle_irq+0x78/0x230
+[  637.534194][    C0]  el1_irq+0xc0/0x180
+[  637.534982][    C0]  kthread_should_stop+0x8c/0xd0
+[  637.535900][    C0]  smpboot_thread_fn+0xa8/0x928
+[  637.536734][    C0]  kthread+0x30c/0x408
+[  637.537536][    C0]  ret_from_fork+0x10/0x30
+[  637.539232][    C0] Kernel panic - not syncing: softlockup: hung tasks
+[  637.540826][    C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G             L    5.9.0-12994-gf9893351acae #15
+[  637.541819][    C0] Hardware name: linux,dummy-virt (DT)
+[  637.542714][    C0] Call trace:
+[  637.543595][    C0]  dump_backtrace+0x0/0x4d0
+[  637.544529][    C0]  show_stack+0x2c/0x80
+[  637.545470][    C0]  dump_stack+0x1b0/0x254
+[  637.546328][    C0]  panic+0x3d0/0x7fc
+[  637.547177][    C0]  watchdog_timer_fn+0x730/0x740
+[  637.548094][    C0]  __hrtimer_run_queues+0x764/0x1438
+[  637.550025][    C0]  hrtimer_interrupt+0x300/0x718
+[  637.551013][    C0]  arch_timer_handler_virt+0x84/0xb0
+[  637.552014][    C0]  handle_percpu_devid_irq+0x258/0xd88
+[  637.552973][    C0]  generic_handle_irq+0x88/0xb8
+[  637.553894][    C0]  __handle_domain_irq+0xf4/0x1d0
+[  637.554826][    C0]  gic_handle_irq+0x78/0x230
+[  637.555717][    C0]  el1_irq+0xc0/0x180
+[  637.556596][    C0]  _raw_spin_unlock_irqrestore+0x74/0x110
+[  637.557573][    C0]  debug_check_no_obj_freed+0x234/0x438
+[  637.558456][    C0]  slab_free_freelist_hook+0x174/0x1f8
+[  637.559513][    C0]  kmem_cache_free+0xac/0x4f8
+[  637.560288][    C0]  kfree_skbmem+0x1b8/0x1f8
+[  637.561202][    C0]  consume_skb+0x13c/0x680
+[  637.563062][    C0]  __dev_kfree_skb_any+0xb0/0xd0
+[  637.566086][    C0]  napi_consume_skb+0x5f0/0x850
+[  637.567046][    C0]  free_old_xmit_skbs+0xf8/0x258
+[  637.567907][    C0]  start_xmit+0x138/0x1530
+[  637.568833][    C0]  dev_hard_start_xmit+0x204/0xde0
+[  637.569853][    C0]  sch_direct_xmit+0x278/0x488
+[  637.570768][    C0]  __qdisc_run+0x44c/0x1da0
+[  637.571669][    C0]  __dev_queue_xmit+0x2164/0x30d0
+[  637.572617][    C0]  dev_queue_xmit+0x24/0x38
+[  637.573525][    C0]  ip_finish_output2+0x1010/0x2578
+[  637.574452][    C0]  __ip_finish_output+0x58c/0xb20
+[  637.575341][    C0]  ip_finish_output+0x40/0x1f8
+[  637.576161][    C0]  ip_output+0x3a0/0x858
+[  637.576975][    C0]  ip_local_out+0xbc/0x1a8
+[  637.577844][    C0]  __ip_queue_xmit+0x654/0x1698
+[  637.578693][    C0]  ip_queue_xmit+0x5c/0x78
+[  637.579566][    C0]  __tcp_transmit_skb+0x1614/0x3688
+[  637.580511][    C0]  __tcp_send_ack.part.0+0x36c/0x678
+[  637.581498][    C0]  tcp_send_ack+0x8c/0xb0
+[  637.582375][    C0]  __tcp_ack_snd_check+0x13c/0x8d0
+[  637.583294][    C0]  tcp_rcv_established+0x1ae4/0x21a0
+[  637.584205][    C0]  tcp_v4_do_rcv+0x724/0xa78
+[  637.585056][    C0]  tcp_v4_rcv+0x2a68/0x33a0
+[  637.585944][    C0]  ip_protocol_deliver_rcu+0x6c/0x868
+[  637.586822][    C0]  ip_local_deliver_finish+0x1e0/0x350
+[  637.587652][    C0]  ip_local_deliver+0x370/0x4b8
+[  637.588510][    C0]  ip_sublist_rcv_finish+0x12c/0x278
+[  637.589454][    C0]  ip_sublist_rcv+0x48c/0x868
+[  637.590367][    C0]  ip_list_rcv+0x2c4/0x418
+[  637.591283][    C0]  __netif_receive_skb_list_core+0x450/0x740
+[  637.592286][    C0]  netif_receive_skb_list_internal+0x558/0xb20
+[  637.593232][    C0]  gro_normal_list.part.0+0x24/0xb0
+[  637.594205][    C0]  net_rx_action+0xcbc/0x1268
+[  637.595038][    C0]  _stext+0x29c/0x1098
+[  637.595868][    C0]  irq_exit+0x470/0x540
+[  637.596711][    C0]  __handle_domain_irq+0xfc/0x1d0
+[  637.597612][    C0]  gic_handle_irq+0x78/0x230
+[  637.598500][    C0]  el1_irq+0xc0/0x180
+[  637.599405][    C0]  kthread_should_stop+0x8c/0xd0
+[  637.600327][    C0]  smpboot_thread_fn+0xa8/0x928
+[  637.601202][    C0]  kthread+0x30c/0x408
+[  637.602055][    C0]  ret_from_fork+0x10/0x30
+[  637.605644][    C0] SMP: stopping secondary CPUs
+[  637.609367][    C0] Dumping ftrace buffer:
+[  637.613724][    C0]    (ftrace buffer empty)
+[  637.615902][    C0] Kernel Offset: disabled
+[  637.617623][    C0] CPU features: 0x0240022,61002082
+[  637.618754][    C0] Memory Limit: none
+[  637.621412][    C0] Rebooting in 1 seconds..
diff --git a/pkg/report/testdata/linux/report/536 b/pkg/report/testdata/linux/report/536
new file mode 100644
index 000000000..503d80dd2
--- /dev/null
+++ b/pkg/report/testdata/linux/report/536
@@ -0,0 +1,53 @@
+TITLE: BUG: unable to handle kernel paging request in selinux_socket_sendmsg
+
+[ 1418.056449][ T6604] Unable to handle kernel paging request at virtual address dfffa00000000003
+[ 1418.057778][ T6604] Mem abort info:
+[ 1418.060540][ T4436] vhci_hcd: disconnect device
+[ 1418.064939][ T4436] vhci_hcd: stop threads
+[ 1418.065447][ T4436] vhci_hcd: release socket
+[ 1418.066582][ T4436] vhci_hcd: disconnect device
+[ 1418.072814][ T4436] vhci_hcd: stop threads
+[ 1418.073388][ T4436] vhci_hcd: release socket
+[ 1418.074818][ T4436] vhci_hcd: disconnect device
+[ 1418.090728][ T6604]   ESR = 0x96000004
+[ 1418.091860][ T6604]   EC = 0x25: DABT (current EL), IL = 32 bits
+[ 1418.092617][ T6604]   SET = 0, FnV = 0
+[ 1418.093198][ T6604]   EA = 0, S1PTW = 0
+[ 1418.093747][ T6604] Data abort info:
+[ 1418.094338][ T6604]   ISV = 0, ISS = 0x00000004
+[ 1418.095159][ T6604]   CM = 0, WnR = 0
+[ 1418.095945][ T6604] [dfffa00000000003] address between user and kernel address ranges
+[ 1418.097299][ T6604] Internal error: Oops: 96000004 [#1] PREEMPT SMP
+[ 1418.098357][ T6604] Modules linked in:
+[ 1418.099914][ T6604] CPU: 0 PID: 6604 Comm: vhci_tx Not tainted 5.9.0-12994-gf9893351acae #16
+[ 1418.100971][ T6604] Hardware name: linux,dummy-virt (DT)
+[ 1418.102283][ T6604] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--)
+[ 1418.103355][ T6604] pc : selinux_socket_sendmsg+0x28/0x58
+[ 1418.104161][ T6604] lr : selinux_socket_sendmsg+0x18/0x58
+[ 1418.104870][ T6604] sp : ffff000049b6fa10
+[ 1418.105700][ T6604] x29: ffff000049b6fa10 x28: ffff0000467c42a0 
+[ 1418.106910][ T6604] x27: ffff000045138700 x26: ffff000049b6fc50 
+[ 1418.108225][ T6604] x25: 0000000000000001 x24: 0000000000000000 
+[ 1418.109389][ T6604] x23: ffff000049b6fc50 x22: 0000000000000030 
+[ 1418.110629][ T6604] x21: dfffa00000000000 x20: 0000000000000000 
+[ 1418.111540][ T6604] x19: 0000000000000000 x18: 1fffe0000d4d8e30 
+[ 1418.112679][ T6604] x17: 0000000000000000 x16: 0000000000000000 
+[ 1418.113664][ T6604] x15: 0000000000000001 x14: 0080000000000000 
+[ 1418.115642][ T6604] x13: 0000000000000004 x12: ffffa00019a35810 
+[ 1418.117770][ T6604] x11: ffffa00013f1867c x10: ffffa0001723e970 
+[ 1418.118916][ T6604] x9 : 0000000000000004 x8 : 1fffe0000936df9a 
+[ 1418.119980][ T6604] x7 : 1fffe0000936df9b x6 : 0000000000000001 
+[ 1418.121038][ T6604] x5 : ffff00004363af40 x4 : 0000000000000000 
+[ 1418.123366][ T6604] x3 : ffffa00011d6e5a0 x2 : 0000000000000003 
+[ 1418.124768][ T6604] x1 : dfffa00000000000 x0 : 0000000000000018 
+[ 1418.128340][ T6604] Call trace:
+[ 1418.129242][ T6604]  selinux_socket_sendmsg+0x28/0x58
+[ 1418.132314][ T6604]  security_socket_sendmsg+0x68/0xd0
+[ 1418.133085][ T6604]  sock_sendmsg+0x4c/0x128
+[ 1418.133754][ T6604]  kernel_sendmsg+0x54/0x70
+[ 1418.134448][ T6604]  vhci_send_cmd_submit+0x6c8/0xda8
+[ 1418.135141][ T6604]  vhci_tx_loop+0xe8/0x300
+[ 1418.135800][ T6604]  kthread+0x344/0x3e0
+[ 1418.136434][ T6604]  ret_from_fork+0x10/0x30
+[ 1418.138100][ T6604] Code: 91006260 d2d40001 f2fbffe1 d343fc02 (38e16841) 
+[ 1418.139739][ T6604] ---[ end trace bfc0c3bff103ed46 ]---