pkg/report: few report parsing fixes for linux

6 files changed, 120 insertions, 3 deletions

diff --git a/pkg/report/testdata/linux/report/247 b/pkg/report/testdata/linux/report/247
new file mode 100644
index 000000000..2738014e5
--- /dev/null
+++ b/pkg/report/testdata/linux/report/247
@@ -0,0 +1,42 @@
+TITLE: BUG: unable to handle kernel NULL pointer dereference in inet_sendmsg
+
+[   61.889077] BUG: unable to handle kernel NULL pointer dereference at           (null)
+[   61.890070] IP: [<          (null)>]           (null)
+[   61.890919] PGD 73c74067 PUD 73114067 PMD 0 
+[   61.890919] Oops: 0010 [#1] SMP DEBUG_PAGEALLOC 
+[   61.892273] Modules linked in:
+[   61.892273] CPU: 1 PID: 7447 Comm: syz-executor5 Not tainted 4.1.15+ #4
+[   61.892273] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
+[   61.894174] task: ffff880073063930 ti: ffff880073470000 task.ti: ffff880073470000
+[   61.895826] RIP: 0010:[<0000000000000000>]  [<          (null)>]           (null)
+[   61.895826] RSP: 0018:ffff880073473cb0  EFLAGS: 00010246
+[   61.895826] RAX: ffffffff81e9fe80 RBX: ffff880073b55b00 RCX: 0000000000000006
+[   61.895826] RDX: 0000000000000006 RSI: 0000000000000000 RDI: ffff880073b55b00
+[   61.895826] RBP: ffff880073473cc0 R08: 0000000000000000 R09: 0000000000000000
+[   61.895826] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
+[   61.895826] R13: ffff880073473ec8 R14: 0000000000000000 R15: 0000000000000000
+[   61.895826] FS:  00007f20cc321700(0000) GS:ffff88007f840000(0000) knlGS:0000000000000000
+[   61.895826] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
+[   61.895826] CR2: 0000000000000000 CR3: 0000000073729000 CR4: 00000000000006e0
+[   61.895826] Stack:
+[   61.895826]  ffffffff8175ec15 ffff880073b55b00 ffff880073473d00 ffffffff81760e50
+[   61.895826]  ffffffff81760cc0 ffff880073473ec8 ffff880079724600 0000000000000000
+[   61.895826]  0000000000000000 ffff880073473ec8 ffff880073473d20 ffffffff8169ff95
+[   61.895826] Call Trace:
+[   61.895826]  [<ffffffff8175ec15>] ? inet_autobind+0x25/0x60
+[   61.895826]  [<ffffffff81760e50>] inet_sendmsg+0x190/0x1e0
+[   61.895826]  [<ffffffff81760cc0>] ? inet_recvmsg+0x1e0/0x1e0
+[   61.895826]  [<ffffffff8169ff95>] sock_sendmsg+0x35/0x40
+[   61.895826]  [<ffffffff816a08ab>] ___sys_sendmsg+0x27b/0x2b0
+[   61.895826]  [<ffffffff81099fb5>] ? __lock_acquire+0x535/0x1ab0
+[   61.895826]  [<ffffffff81097dd1>] ? __lock_is_held+0x51/0x80
+[   61.895826]  [<ffffffff816a178d>] __sys_sendmsg+0x3d/0x80
+[   61.895826]  [<ffffffff816a17dd>] SyS_sendmsg+0xd/0x20
+[   61.895826]  [<ffffffff818e2dae>] system_call_fastpath+0x12/0x76
+[   61.895826] Code:  Bad RIP value.
+[   61.895826] RIP  [<          (null)>]           (null)
+[   61.895826]  RSP <ffff880073473cb0>
+[   61.895826] CR2: 0000000000000000
+[   61.919641] ---[ end trace e4754c7187702be5 ]---
+[   61.920336] Kernel panic - not syncing: Fatal exception
+[   61.921115] Kernel Offset: disabled
diff --git a/pkg/report/testdata/linux/report/248 b/pkg/report/testdata/linux/report/248
new file mode 100644
index 000000000..fb2b46467
--- /dev/null
+++ b/pkg/report/testdata/linux/report/248
@@ -0,0 +1,39 @@
+TITLE: INFO: suspicious RCU usage in ipv6_flowlabel_opt
+
+[   37.911413] ===============================
+[   37.912153] [ INFO: suspicious RCU usage. ]
+[   37.912790] 4.1.15+ #4 Not tainted
+[   37.913339] -------------------------------
+[   37.914040] /linux/net/ipv6/ip6_flowlabel.c:543 suspicious rcu_dereference_check() usage!
+[   37.915642] 
+[   37.915642] other info that might help us debug this:
+[   37.915642] 
+[   37.916873] 
+[   37.916873] rcu_scheduler_active = 1, debug_locks = 0
+[   37.917866] 2 locks held by syz-executor3/9912:
+[   37.918512]  #0:  (sk_lock-AF_INET6){+.+.+.}, at: [<ffffffff817c1ca2>] do_ipv6_setsockopt.isra.13+0xc2/0x1340
+[   37.920066]  #1:  (ip6_sk_fl_lock){+.....}, at: [<ffffffff817dfb27>] ipv6_flowlabel_opt+0x437/0xe00
+[   37.921525] 
+[   37.921525] stack backtrace:
+[   37.922226] CPU: 1 PID: 9912 Comm: syz-executor3 Not tainted 4.1.15+ #4
+[   37.923181] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
+[   37.924340]  0000000000000001 ffff880071227c28 ffffffff818c5ac5 ffff88007afd4c40
+[   37.925520]  ffff880071227c58 ffffffff818b777b 0000000000000000 ffff88007af73cd0
+[   37.926688]  ffff88007af73c68 ffffffff81c46220 ffff880071227ce0 ffffffff817dfb87
+[   37.927769] Call Trace:
+[   37.928122]  [<ffffffff818c5ac5>] dump_stack+0x4b/0x63
+[   37.928832]  [<ffffffff818b777b>] lockdep_rcu_suspicious.cold.44+0xc4/0xe4
+[   37.929865]  [<ffffffff817dfb87>] ipv6_flowlabel_opt+0x497/0xe00
+[   37.930900]  [<ffffffff810996ad>] ? trace_hardirqs_on_caller+0xfd/0x1e0
+[   37.932119]  [<ffffffff816a31b1>] ? lock_sock_nested+0x41/0xb0
+[   37.933059]  [<ffffffff8109979d>] ? trace_hardirqs_on+0xd/0x10
+[   37.933873]  [<ffffffff817c25df>] do_ipv6_setsockopt.isra.13+0x9ff/0x1340
+[   37.934837]  [<ffffffff8107fd6a>] ? try_to_wake_up+0x21a/0x390
+[   37.935634]  [<ffffffff81316941>] ? plist_check_head+0x21/0x30
+[   37.936428]  [<ffffffff81099fb5>] ? __lock_acquire+0x535/0x1ab0
+[   37.937238]  [<ffffffff81097dd1>] ? __lock_is_held+0x51/0x80
+[   37.938032]  [<ffffffff817c2f73>] ipv6_setsockopt+0x53/0xc0
+[   37.938783]  [<ffffffff8172e7ab>] tcp_setsockopt+0x1b/0x30
+[   37.939530]  [<ffffffff816a289f>] sock_common_setsockopt+0xf/0x20
+[   37.940355]  [<ffffffff816a15bc>] SyS_setsockopt+0x6c/0xd0
+[   37.941114]  [<ffffffff818e2dae>] system_call_fastpath+0x12/0x76
diff --git a/pkg/report/testdata/linux/report/249 b/pkg/report/testdata/linux/report/249
new file mode 100644
index 000000000..2542147e2
--- /dev/null
+++ b/pkg/report/testdata/linux/report/249
@@ -0,0 +1,36 @@
+TITLE: WARNING in __might_sleep
+
+[   30.952857] WARNING: CPU: 1 PID: 8321 at /linux/kernel/sched/core.c:7301 __might_sleep+0x77/0x80()
+[   30.956045] do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff81094815>] prepare_to_wait_event+0x75/0xf0
+[   30.958816] Kernel panic - not syncing: panic_on_warn set ...
+[   30.958816] 
+[   30.959781] CPU: 1 PID: 8321 Comm: syz-executor6 Not tainted 4.1.15+ #4
+[   30.959781] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
+[   30.959781]  0000000000000009 ffff8800735dbb90 ffffffff818c5ac5 ffffffff81c49290
+[   30.959781]  ffff8800735dbc08 ffffffff818b5731 0000000000000008 ffff8800735dbc18
+[   30.959781]  ffff8800735dbbb8 0000000000000000 ffff88007f84d828 ffff88007f850238
+[   30.959781] Call Trace:
+[   30.959781]  [<ffffffff818c5ac5>] dump_stack+0x4b/0x63
+[   30.959781]  [<ffffffff818b5731>] panic+0xc8/0x200
+[   30.959781]  [<ffffffff818b5902>] warn_slowpath_common+0x89/0xad
+[   30.959781]  [<ffffffff81053de7>] warn_slowpath_fmt+0x47/0x50
+[   30.959781]  [<ffffffff81094815>] ? prepare_to_wait_event+0x75/0xf0
+[   30.959781]  [<ffffffff81094815>] ? prepare_to_wait_event+0x75/0xf0
+[   30.959781]  [<ffffffff81079c77>] __might_sleep+0x77/0x80
+[   30.959781]  [<ffffffff818de867>] mutex_lock_nested+0x37/0x3f0
+[   30.959781]  [<ffffffff8109979d>] ? trace_hardirqs_on+0xd/0x10
+[   30.959781]  [<ffffffff81094847>] ? prepare_to_wait_event+0xa7/0xf0
+[   30.959781]  [<ffffffff818a4d09>] rfkill_fop_read+0xf9/0x1c0
+[   30.959781]  [<ffffffff81094890>] ? prepare_to_wait_event+0xf0/0xf0
+[   30.959781]  [<ffffffff818a4c10>] ? rfkill_fop_ioctl+0x80/0x80
+[   30.959781]  [<ffffffff81168d35>] do_loop_readv_writev+0x75/0xa0
+[   30.959781]  [<ffffffff818a4c10>] ? rfkill_fop_ioctl+0x80/0x80
+[   30.959781]  [<ffffffff81169983>] do_readv_writev+0x213/0x240
+[   30.959781]  [<ffffffff8118be2f>] ? __fget+0xbf/0x200
+[   30.959781]  [<ffffffff8118bd70>] ? expand_files+0x270/0x270
+[   30.959781]  [<ffffffff811699d5>] vfs_readv+0x25/0x50
+[   30.959781]  [<ffffffff8116a687>] SyS_readv+0x47/0xd0
+[   30.959781]  [<ffffffff818e2dae>] system_call_fastpath+0x12/0x76
+[   30.959781] Kernel Offset: disabled
+
+
diff --git a/pkg/report/testdata/linux/report/34 b/pkg/report/testdata/linux/report/34
index 1de8275cb..74af346d0 100644
--- a/pkg/report/testdata/linux/report/34
+++ b/pkg/report/testdata/linux/report/34
@@ -1,4 +1,4 @@
-TITLE: INFO: suspicious RCU usage. ]
+TITLE: INFO: suspicious RCU usage in corrupted
 CORRUPTED: Y
 
 [ 1722.511384] [ INFO: suspicious RCU usage. ]
diff --git a/pkg/report/testdata/linux/report/35 b/pkg/report/testdata/linux/report/35
index 62d358134..82360702f 100644
--- a/pkg/report/testdata/linux/report/35
+++ b/pkg/report/testdata/linux/report/35
@@ -1,4 +1,4 @@
-TITLE: INFO: suspicious RCU usage. ]
+TITLE: INFO: suspicious RCU usage in corrupted
 START: [   37.540478] [ INFO: suspicious RCU usage. ]
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/91 b/pkg/report/testdata/linux/report/91
index 5931bb081..d81d88b4f 100644
--- a/pkg/report/testdata/linux/report/91
+++ b/pkg/report/testdata/linux/report/91
@@ -1,4 +1,4 @@
-TITLE: INFO: suspicious RCU usage. ]
+TITLE: INFO: suspicious RCU usage in corrupted
 CORRUPTED: Y
 
 [ 1722.511384] ===============================