diff options
| -rw-r--r-- | pkg/report/linux.go | 2 | ||||
| -rw-r--r-- | pkg/report/testdata/linux/report/396 | 142 | ||||
| -rw-r--r-- | pkg/report/testdata/linux/report/397 | 46 |
3 files changed, 189 insertions, 1 deletions
diff --git a/pkg/report/linux.go b/pkg/report/linux.go index a43a66481..fb12b5509 100644 --- a/pkg/report/linux.go +++ b/pkg/report/linux.go @@ -1159,7 +1159,7 @@ var linuxOopses = []*oops{ }, { title: compile("WARNING: held lock freed!"), - report: compile("WARNING: held lock freed!(?:.*\\n)+?.*{{PC}} +{{FUNC}}"), + report: compile("WARNING: held lock freed!(?:.*\\n)+?.*at:(?: {{PC}})? +{{FUNC}}"), fmt: "WARNING: held lock freed in %[1]v", }, { diff --git a/pkg/report/testdata/linux/report/396 b/pkg/report/testdata/linux/report/396 new file mode 100644 index 000000000..8aecbbc24 --- /dev/null +++ b/pkg/report/testdata/linux/report/396 @@ -0,0 +1,142 @@ +TITLE: WARNING: held lock freed in nr_release + +[ 68.540703][ T8559] ========================= +[ 68.545204][ T8559] WARNING: held lock freed! +[ 68.549701][ T8559] 5.2.0-rc6+ #75 Not tainted +[ 68.554281][ T8559] ------------------------- +[ 68.558778][ T8559] syz-executor315/8559 is freeing memory ffff88809faed2c0-ffff88809faedabf, with a lock still held there! +[ 68.570044][ T8559] 00000000cf45dbdb (sk_lock-AF_NETROM){+.+.}, at: nr_release+0x11a/0x3b0 +[ 68.578474][ T8559] 2 locks held by syz-executor315/8559: +[ 68.584008][ T8559] #0: 00000000c0a19dcd (&sb->s_type->i_mutex_key#11){+.+.}, at: __sock_release+0x89/0x2a0 +[ 68.594004][ T8559] #1: 00000000cf45dbdb (sk_lock-AF_NETROM){+.+.}, at: nr_release+0x11a/0x3b0 +[ 68.602967][ T8559] +[ 68.602967][ T8559] stack backtrace: +[ 68.608865][ T8559] CPU: 0 PID: 8559 Comm: syz-executor315 Not tainted 5.2.0-rc6+ #75 +[ 68.616923][ T8559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 +[ 68.626976][ T8559] Call Trace: +[ 68.630275][ T8559] dump_stack+0x172/0x1f0 +[ 68.634619][ T8559] debug_check_no_locks_freed.cold+0x9d/0xa9 +[ 68.640729][ T8559] ? trace_hardirqs_off+0x62/0x220 +[ 68.645846][ T8559] kfree+0xb1/0x220 +[ 68.649665][ T8559] __sk_destruct+0x4f7/0x6e0 +[ 68.654259][ T8559] sk_destruct+0x7b/0x90 +[ 68.658510][ T8559] __sk_free+0xce/0x300 +[ 68.662673][ T8559] sk_free+0x42/0x50 +[ 68.666630][ T8559] nr_destroy_socket+0x3df/0x4a0 +[ 68.671578][ T8559] ? nr_clear_queues+0x3d/0x40 +[ 68.676365][ T8559] nr_release+0x323/0x3b0 +[ 68.680700][ T8559] __sock_release+0xce/0x2a0 +[ 68.685294][ T8559] sock_close+0x1b/0x30 +[ 68.689451][ T8559] __fput+0x2ff/0x890 +[ 68.693453][ T8559] ? __sock_release+0x2a0/0x2a0 +[ 68.698312][ T8559] ____fput+0x16/0x20 +[ 68.702303][ T8559] task_work_run+0x145/0x1c0 +[ 68.706937][ T8559] exit_to_usermode_loop+0x273/0x2c0 +[ 68.712237][ T8559] do_syscall_64+0x58e/0x680 +[ 68.716834][ T8559] entry_SYSCALL_64_after_hwframe+0x49/0xbe +[ 68.722726][ T8559] RIP: 0033:0x447269 +[ 68.726618][ T8559] Code: e8 7c 14 03 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 cb 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 +[ 68.746221][ T8559] RSP: 002b:00007f653a7bed88 EFLAGS: 00000246 ORIG_RAX: 000000000000002d +[ 68.754636][ T8559] RAX: ffffffffffffff95 RBX: 00000000006dcc48 RCX: 0000000000447269 +[ 68.762614][ T8559] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 +[ 68.770596][ T8559] RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000 +[ 68.778567][ T8559] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c +[ 68.786545][ T8559] R13: 0000003066736362 R14: 002cc7eb47000000 R15: 0000003066736362 +[ 68.808986][ T8559] ================================================================== +[ 68.817113][ T8559] BUG: KASAN: use-after-free in do_raw_spin_lock+0x28a/0x2e0 +[ 68.824567][ T8559] Read of size 4 at addr ffff88809faed34c by task syz-executor315/8559 +[ 68.826952][ T8549] syz-executor315 (8549) used greatest stack depth: 23440 bytes left +[ 68.832794][ T8559] +[ 68.832808][ T8559] CPU: 1 PID: 8559 Comm: syz-executor315 Not tainted 5.2.0-rc6+ #75 +[ 68.832813][ T8559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 +[ 68.832817][ T8559] Call Trace: +[ 68.832837][ T8559] dump_stack+0x172/0x1f0 +[ 68.832856][ T8559] ? do_raw_spin_lock+0x28a/0x2e0 +[ 68.873915][ T8559] print_address_description.cold+0x7c/0x20d +[ 68.879900][ T8559] ? do_raw_spin_lock+0x28a/0x2e0 +[ 68.884932][ T8559] ? do_raw_spin_lock+0x28a/0x2e0 +[ 68.888244][ T8561] kobject: 'bcsf0' (00000000bf0de9ad): kobject_cleanup, parent 000000003736d4b0 +[ 68.889962][ T8559] __kasan_report.cold+0x1b/0x40 +[ 68.900905][ T8561] kobject: 'bcsf0' (00000000bf0de9ad): calling ktype release +[ 68.903899][ T8559] ? do_raw_spin_lock+0x28a/0x2e0 +[ 68.911735][ T8561] kobject: 'bcsf0': free name +[ 68.916285][ T8559] kasan_report+0x12/0x20 +[ 68.925247][ T8559] __asan_report_load4_noabort+0x14/0x20 +[ 68.930869][ T8559] do_raw_spin_lock+0x28a/0x2e0 +[ 68.935720][ T8559] ? rwlock_bug.part.0+0x90/0x90 +[ 68.940725][ T8559] ? lock_acquire+0x16f/0x3f0 +[ 68.945421][ T8559] ? release_sock+0x20/0x1c0 +[ 68.949999][ T8559] _raw_spin_lock_bh+0x3b/0x50 +[ 68.954874][ T8559] ? release_sock+0x20/0x1c0 +[ 68.959462][ T8559] release_sock+0x20/0x1c0 +[ 68.963880][ T8559] nr_release+0x2df/0x3b0 +[ 68.968191][ T8559] __sock_release+0xce/0x2a0 +[ 68.972774][ T8559] sock_close+0x1b/0x30 +[ 68.977031][ T8559] __fput+0x2ff/0x890 +[ 68.981061][ T8559] ? __sock_release+0x2a0/0x2a0 +[ 68.985997][ T8559] ____fput+0x16/0x20 +[ 68.989961][ T8559] task_work_run+0x145/0x1c0 +[ 68.994534][ T8559] exit_to_usermode_loop+0x273/0x2c0 +[ 68.999815][ T8559] do_syscall_64+0x58e/0x680 +[ 69.004406][ T8559] entry_SYSCALL_64_after_hwframe+0x49/0xbe +[ 69.010627][ T8559] RIP: 0033:0x447269 +[ 69.014505][ T8559] Code: e8 7c 14 03 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 cb 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00 +[ 69.034206][ T8559] RSP: 002b:00007f653a7bed88 EFLAGS: 00000246 ORIG_RAX: 000000000000002d +[ 69.042798][ T8559] RAX: ffffffffffffff95 RBX: 00000000006dcc48 RCX: 0000000000447269 +[ 69.050977][ T8559] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 +[ 69.059141][ T8559] RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000 +[ 69.067116][ T8559] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c +[ 69.075241][ T8559] R13: 0000003066736362 R14: 002cc7eb47000000 R15: 0000003066736362 +[ 69.083336][ T8559] +[ 69.085662][ T8559] Allocated by task 8562: +[ 69.089991][ T8559] save_stack+0x23/0x90 +[ 69.094144][ T8559] __kasan_kmalloc.constprop.0+0xcf/0xe0 +[ 69.099781][ T8559] kasan_kmalloc+0x9/0x10 +[ 69.104427][ T8559] __kmalloc+0x15c/0x740 +[ 69.108663][ T8559] sk_prot_alloc+0x19c/0x2e0 +[ 69.113248][ T8559] sk_alloc+0x39/0xf70 +[ 69.117364][ T8559] nr_rx_frame+0x733/0x1e70 +[ 69.122049][ T8559] nr_loopback_timer+0x7b/0x170 +[ 69.126914][ T8559] call_timer_fn+0x193/0x720 +[ 69.131500][ T8559] run_timer_softirq+0x66f/0x1740 +[ 69.136527][ T8559] __do_softirq+0x25c/0x94c +[ 69.141004][ T8559] +[ 69.143312][ T8559] Freed by task 8559: +[ 69.147274][ T8559] save_stack+0x23/0x90 +[ 69.151662][ T8559] __kasan_slab_free+0x102/0x150 +[ 69.156582][ T8559] kasan_slab_free+0xe/0x10 +[ 69.161080][ T8559] kfree+0xcf/0x220 +[ 69.164871][ T8559] __sk_destruct+0x4f7/0x6e0 +[ 69.169438][ T8559] sk_destruct+0x7b/0x90 +[ 69.173679][ T8559] __sk_free+0xce/0x300 +[ 69.177818][ T8559] sk_free+0x42/0x50 +[ 69.181697][ T8559] nr_destroy_socket+0x3df/0x4a0 +[ 69.186911][ T8559] nr_release+0x323/0x3b0 +[ 69.191251][ T8559] __sock_release+0xce/0x2a0 +[ 69.195958][ T8559] sock_close+0x1b/0x30 +[ 69.200102][ T8559] __fput+0x2ff/0x890 +[ 69.204064][ T8559] ____fput+0x16/0x20 +[ 69.208049][ T8559] task_work_run+0x145/0x1c0 +[ 69.212780][ T8559] exit_to_usermode_loop+0x273/0x2c0 +[ 69.218064][ T8559] do_syscall_64+0x58e/0x680 +[ 69.222814][ T8559] entry_SYSCALL_64_after_hwframe+0x49/0xbe +[ 69.228776][ T8559] +[ 69.231163][ T8559] The buggy address belongs to the object at ffff88809faed2c0 +[ 69.231163][ T8559] which belongs to the cache kmalloc-2k of size 2048 +[ 69.245220][ T8559] The buggy address is located 140 bytes inside of +[ 69.245220][ T8559] 2048-byte region [ffff88809faed2c0, ffff88809faedac0) +[ 69.258665][ T8559] The buggy address belongs to the page: +[ 69.264360][ T8559] page:ffffea00027ebb00 refcount:1 mapcount:0 mapping:ffff8880aa400c40 index:0x0 compound_mapcount: 0 +[ 69.275525][ T8559] flags: 0x1fffc0000010200(slab|head) +[ 69.280883][ T8559] raw: 01fffc0000010200 ffffea000242cd08 ffffea00023df908 ffff8880aa400c40 +[ 69.289446][ T8559] raw: 0000000000000000 ffff88809faec1c0 0000000100000003 0000000000000000 +[ 69.298176][ T8559] page dumped because: kasan: bad access detected +[ 69.304579][ T8559] +[ 69.306885][ T8559] Memory state around the buggy address: +[ 69.312622][ T8559] ffff88809faed200: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc +[ 69.320686][ T8559] ffff88809faed280: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb +[ 69.328742][ T8559] >ffff88809faed300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb +[ 69.337025][ T8559] ^ +[ 69.343507][ T8559] ffff88809faed380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb +[ 69.351675][ T8559] ffff88809faed400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb +[ 69.359720][ T8559] ================================================================== diff --git a/pkg/report/testdata/linux/report/397 b/pkg/report/testdata/linux/report/397 new file mode 100644 index 000000000..e84b9eb2a --- /dev/null +++ b/pkg/report/testdata/linux/report/397 @@ -0,0 +1,46 @@ +TITLE: BUG: held lock freed in sctp_sendmsg + +[ 38.333264] ========================= +[ 38.337030] [ BUG: held lock freed! ] +[ 38.340800] 4.3.5+ #9 Not tainted +[ 38.344221] ------------------------- +[ 38.347999] syzkaller434861/3744 is freeing memory ffff8800b8db4940-ffff8800b8db5107, with a lock still held there! +[ 38.358535] (sk_lock-AF_INET6){+.+.+.}, at: [<ffffffff82d3eeff>] sctp_sendmsg+0x231f/0x2e20 +[ 38.367562] 1 lock held by syzkaller434861/3744: +[ 38.372283] #0: (sk_lock-AF_INET6){+.+.+.}, at: [<ffffffff82d3eeff>] sctp_sendmsg+0x231f/0x2e20 +[ 38.381873] +[ 38.381873] stack backtrace: +[ 38.386341] CPU: 1 PID: 3744 Comm: syzkaller434861 Not tainted 4.3.5+ #9 +[ 38.393145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 +[ 38.402467] 0000000000000001 ffff8801d181b8a0 ffffffff81d8e482 ffff8800b8db5107 +[ 38.410437] 0000000000000000 0000000000000002 ffff8801d2fce280 ffff8800b8db4940 +[ 38.418419] ffff8801d181b900 ffffffff81427ff2 0000000000000001 ffffffff8272c36f +[ 38.426391] Call Trace: +[ 38.428948] [<ffffffff81d8e482>] dump_stack+0xf6/0x184 +[ 38.434282] [<ffffffff81427ff2>] debug_check_no_locks_freed+0x2f2/0x370 +[ 38.441091] [<ffffffff8272c36f>] ? dst_release+0x3f/0xa0 +[ 38.446599] [<ffffffff817b486d>] kmem_cache_free+0xcd/0x2d0 +[ 38.452370] [<ffffffff826a8a2e>] __sk_destruct+0x3be/0x580 +[ 38.458049] [<ffffffff826b0a1c>] sk_destruct+0x4c/0x80 +[ 38.463385] [<ffffffff826b0aac>] __sk_free+0x5c/0x210 +[ 38.468630] [<ffffffff826b0c95>] sk_free+0x35/0x40 +[ 38.473632] [<ffffffff82cfb40c>] sctp_association_put+0x16c/0x240 +[ 38.479918] [<ffffffff82d3f316>] sctp_sendmsg+0x2736/0x2e20 +[ 38.485686] [<ffffffff82d3cbe0>] ? sctp_id2assoc+0x310/0x310 +[ 38.491542] [<ffffffff81428070>] ? debug_check_no_locks_freed+0x370/0x370 +[ 38.498526] [<ffffffff814081b0>] ? finish_wait+0x2a0/0x2a0 +[ 38.504209] [<ffffffff82a96b65>] inet_sendmsg+0xe5/0x520 +[ 38.509717] [<ffffffff81c30aee>] ? security_socket_sendmsg+0x8e/0xc0 +[ 38.516265] [<ffffffff82a96a80>] ? inet_recvmsg+0x590/0x590 +[ 38.522031] [<ffffffff82693fdf>] sock_sendmsg+0xcf/0x110 +[ 38.527535] [<ffffffff82694eea>] SYSC_sendto+0x2ba/0x330 +[ 38.533052] [<ffffffff82694c30>] ? SYSC_connect+0x2f0/0x2f0 +[ 38.538824] [<ffffffff81733c41>] ? handle_mm_fault+0x401/0x3280 +[ 38.544939] [<ffffffff81428070>] ? debug_check_no_locks_freed+0x370/0x370 +[ 38.551920] [<ffffffff826b30b0>] ? sock_enable_timestamp+0x80/0x80 +[ 38.558291] [<ffffffff81733840>] ? __pmd_alloc+0x400/0x400 +[ 38.563972] [<ffffffff812a72e8>] ? __do_page_fault+0x398/0x940 +[ 38.570000] [<ffffffff82deef6b>] ? retint_user+0x18/0x18 +[ 38.575506] [<ffffffff82699c95>] SyS_sendto+0x45/0x60 +[ 38.580749] [<ffffffff82dee393>] entry_SYSCALL_64_fastpath+0x12/0x17 +[ 38.587395] ================================================================== |