pkg/report: split crash.KCSAN

Introduce crash.KCSANAssert.
Introduce crash.KCSANUnknown.

6 files changed, 48 insertions, 6 deletions

diff --git a/pkg/report/crash/types.go b/pkg/report/crash/types.go
index 21bc472a2..1b9457d1d 100644
--- a/pkg/report/crash/types.go
+++ b/pkg/report/crash/types.go
@@ -20,8 +20,9 @@ const (
 	KASANUseAfterFreeRead  = Type("KASAN-USE-AFTER-FREE-READ")
 	KASANUseAfterFreeWrite = Type("KASAN-USE-AFTER-FREE-WRITE")
 	KASANWrite             = Type("KASAN-WRITE")
-	KCSAN                  = Type("KCSAN")
-	KCSANDataRace          = Type("DATARACE")
+	KCSANAssert            = Type("KCSAN-ASSERT")
+	KCSANDataRace          = Type("KCSAN-DATARACE")
+	KCSANUnknown           = Type("KCSAN-UNKNOWN")
 	KFENCE                 = Type("KFENCE")
 	KMSANInfoLeak          = Type("KMSAN-INFO-LEAK")
 	KMSANUninitValue       = Type("KMSAN-UNINIT-VALUE")
@@ -60,7 +61,7 @@ func (t Type) IsKMSAN() bool {
 }
 
 func (t Type) IsKCSAN() bool {
-	return t == KCSANDataRace || t == KCSAN
+	return t == KCSANDataRace || t == KCSANAssert || t == KCSANUnknown
 }
 
 func (t Type) IsUBSAN() bool {
diff --git a/pkg/report/testdata/linux/report/427 b/pkg/report/testdata/linux/report/427
index 0364e06b2..dd4f2a55b 100644
--- a/pkg/report/testdata/linux/report/427
+++ b/pkg/report/testdata/linux/report/427
@@ -1,5 +1,5 @@
 TITLE: KCSAN: data-race in find_next_bit / rcu_report_exp_cpu_mult
-TYPE: DATARACE
+TYPE: KCSAN-DATARACE
 FRAME: find_next_bit
 
 [   44.377931][    C4] ==================================================================
diff --git a/pkg/report/testdata/linux/report/428 b/pkg/report/testdata/linux/report/428
index 48f5a69f9..0c40f6233 100644
--- a/pkg/report/testdata/linux/report/428
+++ b/pkg/report/testdata/linux/report/428
@@ -1,5 +1,5 @@
 TITLE: KCSAN: data-race in e1000_clean_rx_irq
-TYPE: DATARACE
+TYPE: KCSAN-DATARACE
 FRAME: e1000_clean_rx_irq
 
 [   44.381409][    C4]  ==================================================================
diff --git a/pkg/report/testdata/linux/report/449 b/pkg/report/testdata/linux/report/449
index 5c4e9fc91..e5edcab41 100644
--- a/pkg/report/testdata/linux/report/449
+++ b/pkg/report/testdata/linux/report/449
@@ -1,5 +1,5 @@
 TITLE: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg
-TYPE: DATARACE
+TYPE: KCSAN-DATARACE
 
 [  472.478762][T19789] ==================================================================
 [  472.486894][T19789] BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg
diff --git a/pkg/report/testdata/linux/report/750 b/pkg/report/testdata/linux/report/750
new file mode 100644
index 000000000..ebed9c884
--- /dev/null
+++ b/pkg/report/testdata/linux/report/750
@@ -0,0 +1,33 @@
+TITLE: KCSAN: assert: race in dequeue_entities
+TYPE: KCSAN-ASSERT
+FRAME: dequeue_entities
+EXECUTOR: proc=2, id=327
+
+[   67.053553][ T4926] ==================================================================
+[   67.061656][ T4926] BUG: KCSAN: assert: race in dequeue_entities+0x6df/0x760
+[   67.068875][ T4926]
+[   67.071200][ T4926] race at unknown origin, with assert no writes to 0xffff8881001cb1e8 of 4 bytes by task 4926 on cpu 0:
+[   67.082412][ T4926]  dequeue_entities+0x6df/0x760
+[   67.087294][ T4926]  pick_next_task_fair+0x7d/0x410
+[   67.092327][ T4926]  __schedule+0x284/0x940
+[   67.096845][ T4926]  schedule+0x55/0xc0
+[   67.100839][ T4926]  synchronize_rcu_expedited+0x611/0x7a0
+[   67.106511][ T4926]  synchronize_rcu+0x46/0x320
+[   67.111209][ T4926]  nf_tables_abort+0x38f5/0x4340
+[   67.116168][ T4926]  nfnetlink_rcv+0x10ce/0x15c0
+[   67.120941][ T4926]  netlink_unicast+0x599/0x670
+[   67.125722][ T4926]  netlink_sendmsg+0x5cc/0x6e0
+[   67.130506][ T4926]  __sock_sendmsg+0x140/0x180
+[   67.135224][ T4926]  ____sys_sendmsg+0x312/0x410
+[   67.140036][ T4926]  __sys_sendmsg+0x1d9/0x270
+[   67.144649][ T4926]  __x64_sys_sendmsg+0x46/0x50
+[   67.149433][ T4926]  x64_sys_call+0x2689/0x2d60
+[   67.154132][ T4926]  do_syscall_64+0xc9/0x1c0
+[   67.158645][ T4926]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
+[   67.164576][ T4926]
+[   67.166912][ T4926] value changed: 0x00000000 -> 0x00000001
+[   67.172634][ T4926]
+[   67.174965][ T4926] Reported by Kernel Concurrency Sanitizer on:
+[   67.181139][ T4926] CPU: 0 UID: 0 PID: 4926 Comm: syz.2.327 Not tainted 6.12.0-rc5-syzkaller-00299-g11066801dd4b #0
+[   67.191741][ T4926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
+[   67.202164][ T4926] ==================================================================
diff --git a/pkg/report/title_to_type.go b/pkg/report/title_to_type.go
index e5c212fe3..72540b6c2 100644
--- a/pkg/report/title_to_type.go
+++ b/pkg/report/title_to_type.go
@@ -117,6 +117,10 @@ var titleToType = []struct {
 		crashType:       crash.KCSANDataRace,
 	},
 	{
+		includePrefixes: []string{"KCSAN: assert: race in"},
+		crashType:       crash.KCSANAssert,
+	},
+	{
 		includePrefixes: []string{
 			// keep-sorted start
 			"BUG: bad unlock balance in",
@@ -252,4 +256,8 @@ var titleToType = []struct {
 		includePrefixes: []string{"UBSAN:"},
 		crashType:       crash.UBSAN,
 	},
+	{
+		includePrefixes: []string{"KCSAN:"},
+		crashType:       crash.KCSANUnknown,
+	},
 }