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pkg/report: skip retpolines in reports

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These __x86_indirect_thunk_rax broke reports for bad indirect calls.
This commit is contained in:
Dmitry Vyukov 2019-03-07 19:35:39 +01:00
parent 8c085c5e4a
commit 2eb2cd93e0
6 changed files with 313 additions and 1 deletions
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3
pkg/report/linux.go
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@ -474,7 +474,7 @@ func (ctx *linux) getMaintainersImpl(file string, blame bool) ([]string, error)
if blame {
args = append(args, "--git-blame")
}
args = append(args, file)
args = append(args, "-f", file)
output, err := osutil.RunCmd(time.Minute, ctx.kernelSrc, filepath.FromSlash("scripts/get_maintainer.pl"), args...)
if err != nil {
return nil, err
@ -741,6 +741,7 @@ var linuxStackParams = &stackParams{
"list_replace",
"list_move",
"list_splice",
"_indirect_thunk_", // retpolines
},
corruptedLines: []*regexp.Regexp{
// Fault injection stacks are frequently intermixed with crash reports.

63
pkg/report/testdata/linux/report/358 vendored Normal file
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@ -0,0 +1,63 @@
TITLE: general protection fault in run_timer_softirq
[ 155.297335] kasan: CONFIG_KASAN_INLINE enabled
[ 155.302006] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 155.309477] general protection fault: 0000 [#1] SMP KASAN PTI
[ 155.315360] Dumping ftrace buffer:
[ 155.318902] (ftrace buffer empty)
[ 155.322610] Modules linked in:
[ 155.325807] CPU: 0 PID: 1995 Comm: syz-executor0 Not tainted 4.14.58+ #4
[ 155.332640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 155.341996] task: ffff8801d93eb1c0 task.stack: ffff8801a9130000
[ 155.348063] RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20
[ 155.353507] RSP: 0018:ffff8801dba07588 EFLAGS: 00010006
[ 155.357075] kobject: 'loop2' (ffff8801d51b4ba8): kobject_uevent_env
[ 155.357118] kobject: 'loop2' (ffff8801d51b4ba8): fill_kobj_path: path = '/devices/virtual/block/loop2'
[ 155.374705] RAX: dead4ead00000000 RBX: ffff8801dba07798 RCX: 0000000000000000
[ 155.382046] RDX: 0000000000000100 RSI: ffffffff83efce00 RDI: 00000000ffffffff
[ 155.389334] RBP: ffff8801dba077c0 R08: ffff8801d93ebae0 R09: ffffffff84cf2d70
[ 155.396677] R10: 5287b05a848dd2a0 R11: ffff8801d93eb1c0 R12: 1ffff1003b740eb7
[ 155.403948] R13: 0000000000000102 R14: ffffe8ffffc00698 R15: ffff8801dba07758
[ 155.411231] FS: 0000000000000000(0000) GS:ffff8801dba00000(0063) knlGS:0000000009af7900
[ 155.419482] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
[ 155.421051] kobject: 'loop6' (ffff8801d530d508): kobject_uevent_env
[ 155.421092] kobject: 'loop6' (ffff8801d530d508): fill_kobj_path: path = '/devices/virtual/block/loop6'
[ 155.441186] CR2: 00007f690778b518 CR3: 00000001a9138004 CR4: 00000000001606b0
[ 155.448458] DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
[ 155.455823] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
[ 155.463091] Call Trace:
[ 155.465665] <IRQ>
[ 155.505535] run_timer_softirq+0x53d/0xe70
[ 155.580512] __do_softirq+0x305/0xba7
[ 155.631559] irq_exit+0x1ac/0x1d0
[ 155.634999] smp_apic_timer_interrupt+0x29a/0x870
[ 155.673251] apic_timer_interrupt+0x8e/0xa0
[ 155.677556] </IRQ>
[ 155.679789] RIP: 0010:copy_page_range+0xb82/0x20f0
[ 155.684702] RSP: 0018:ffff8801a9136be8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
[ 155.692390] RAX: 1ffff100352d59c3 RBX: 0000000000000000 RCX: 80000001bc820007
[ 155.699639] RDX: 0000000000000000 RSI: 00000000f71c2000 RDI: ffff8801d75ed740
[ 155.706888] RBP: ffff8801a91370d8 R08: ffffea0006f20800 R09: 0000000000005458
[ 155.714143] R10: 030475d58c7bc5dd R11: ffff8801d93eb1c0 R12: ffff8801a9137070
[ 155.721480] R13: dffffc0000000000 R14: ffff8801a91370b0 R15: ffffea0006f20800
[ 155.820312] copy_mm+0xedc/0x1700
[ 155.849419] copy_process.part.42+0x1d42/0x4ed0
[ 155.997079] _do_fork+0x200/0x1120
[ 156.046204] SyS_clone+0x3c/0x50
[ 156.053860] do_fast_syscall_32+0x3c1/0xcb0
[ 156.082164] entry_SYSENTER_compat+0x84/0x96
[ 156.086559] RIP: 0023:0xf7f29c99
[ 156.089907] RSP: 002b:000000000845fe60 EFLAGS: 00000282 ORIG_RAX: 0000000000000078
[ 156.097601] RAX: ffffffffffffffda RBX: 0000000001200011 RCX: 0000000000000000
[ 156.104859] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000009af7968
[ 156.112111] RBP: 000000000845feb8 R08: 0000000000000000 R09: 0000000000000000
[ 156.119365] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 156.126614] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 156.133870] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00
[ 156.152999] RIP: __x86_indirect_thunk_rax+0x10/0x20 RSP: ffff8801dba07588
[ 156.159908] ---[ end trace b789612e6cf4cd28 ]---
[ 156.164641] Kernel panic - not syncing: Fatal exception in interrupt
[ 156.171617] Dumping ftrace buffer:
[ 156.175141] (ftrace buffer empty)
[ 156.179547] Kernel Offset: disabled
[ 156.183165] Rebooting in 86400 seconds..

53
pkg/report/testdata/linux/report/359 vendored Normal file
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@ -0,0 +1,53 @@
TITLE: general protection fault in run_timer_softirq
[ 159.840224] kasan: CONFIG_KASAN_INLINE enabled
[ 159.844860] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 159.852222] general protection fault: 0000 [#1] SMP KASAN PTI
[ 159.858101] Dumping ftrace buffer:
[ 159.861632] (ftrace buffer empty)
[ 159.865335] Modules linked in:
[ 159.868509] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.58+ #5
[ 159.874977] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 159.884338] task: ffff8801da246340 task.stack: ffff8801da250000
[ 159.890404] RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20
[ 159.896095] RSP: 0018:ffff8801db907588 EFLAGS: 00010006
[ 159.902235] RAX: dead4ead00000000 RBX: ffff8801db907798 RCX: 0000000000000000
[ 159.909509] RDX: 0000000000000100 RSI: ffffffff83efce00 RDI: 00000000ffffffff
[ 159.916759] RBP: ffff8801db9077c0 R08: 0000000000000008 R09: 00000000000006ac
[ 159.924277] R10: 8de94dadc5057952 R11: ffff8801da246340 R12: 1ffff1003b720eb7
[ 159.931525] R13: 0000000000000101 R14: ffffe8ffffc00bd8 R15: ffff8801db907758
[ 159.938802] FS: 0000000000000000(0000) GS:ffff8801db900000(0000) knlGS:0000000000000000
[ 159.947029] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 159.952900] CR2: 00000000f5f4510c CR3: 0000000003e22001 CR4: 00000000001606a0
[ 159.960971] DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 159.968222] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
[ 159.975472] Call Trace:
[ 159.978039] <IRQ>
[ 160.022603] run_timer_softirq+0x53d/0xe70
[ 160.084997] __do_softirq+0x305/0xba7
[ 160.141596] irq_exit+0x1ac/0x1d0
[ 160.145032] smp_apic_timer_interrupt+0x29a/0x870
[ 160.183704] apic_timer_interrupt+0x8e/0xa0
[ 160.188001] </IRQ>
[ 160.190222] RIP: 0010:native_safe_halt+0x6/0x10
[ 160.194863] RSP: 0018:ffff8801da257c38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
[ 160.202544] RAX: 0000000000000007 RBX: 1ffff1003b44af8a RCX: 0000000000000000
[ 160.210224] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801da246b94
[ 160.218164] RBP: ffff8801da257c38 R08: 0000000000000000 R09: 0000000000000000
[ 160.225409] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1003b44af96
[ 160.232768] R13: ffff8801da257d70 R14: ffffffff8430c908 R15: 0000000000000000
[ 160.244173] default_idle+0x118/0x610
[ 160.260483] arch_cpu_idle+0x15/0x20
[ 160.264177] default_idle_call+0x4a/0x60
[ 160.268215] do_idle+0x240/0x2d0
[ 160.271558] cpu_startup_entry+0x109/0x120
[ 160.279476] start_secondary+0x3dd/0x4f0
[ 160.288253] secondary_startup_64+0xa5/0xb0
[ 160.292547] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00
[ 160.312598] RIP: __x86_indirect_thunk_rax+0x10/0x20 RSP: ffff8801db907588
[ 160.319501] ---[ end trace c81ff5cb5a158d30 ]---
[ 160.324231] Kernel panic - not syncing: Fatal exception in interrupt
[ 160.330764] Dumping ftrace buffer:
[ 160.334286] (ftrace buffer empty)
[ 160.338569] Kernel Offset: disabled
[ 160.342194] Rebooting in 86400 seconds..

56
pkg/report/testdata/linux/report/360 vendored Normal file
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@ -0,0 +1,56 @@
TITLE: general protection fault in locks_remove_file
[ 51.907753] kasan: CONFIG_KASAN_INLINE enabled
[ 51.913122] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 51.920573] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 51.926803] CPU: 1 PID: 5670 Comm: syz-executor439 Not tainted 4.20.0-rc1-next-20181107+ #107
[ 51.935630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 51.944987] RIP: 0010:__x86_indirect_thunk_rbx+0x10/0x20
[ 51.950426] Code: 90 0f ae e8 eb f9 48 89 04 24 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 1c 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
[ 51.969311] RSP: 0018:ffff8801d89af2b0 EFLAGS: 00010293
[ 51.974657] RAX: ffff8801d49723c0 RBX: 894cdffffc000000 RCX: ffffffff81ed555d
[ 51.981912] RDX: 0000000000000000 RSI: ffffffff81ed5c9e RDI: ffff8801d89af338
[ 51.989163] RBP: ffff8801d89af4a0 R08: ffff8801d49723c0 R09: ffffed003b5e5b67
[ 51.996423] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801d798da00
[ 52.003684] R13: ffff8801d89af338 R14: 1ffff1003b135e5b R15: dffffc0000000000
[ 52.010937] FS: 0000000001292880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
[ 52.019142] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 52.025108] CR2: 0000000020e2aff8 CR3: 000000000946a000 CR4: 00000000001406e0
[ 52.032381] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 52.039643] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 52.047009] Call Trace:
[ 52.095282] locks_remove_file+0x148/0x5c0
[ 52.125426] __fput+0x2f0/0xa70
[ 52.150364] ____fput+0x15/0x20
[ 52.153639] task_work_run+0x1e8/0x2a0
[ 52.172015] do_exit+0x1ad1/0x26d0
[ 52.338992] do_group_exit+0x177/0x440
[ 52.356309] __x64_sys_exit_group+0x3e/0x50
[ 52.360613] do_syscall_64+0x1b9/0x820
[ 52.397610] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 52.402783] RIP: 0033:0x43ec48
[ 52.405975] Code: Bad RIP value.
[ 52.409321] RSP: 002b:00007fff104a8308 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[ 52.417010] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043ec48
[ 52.424344] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[ 52.431710] RBP: 00000000004be508 R08: 00000000000000e7 R09: ffffffffffffffd0
[ 52.438977] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[ 52.446237] R13: 00000000006d0180 R14: 0000000000000000 R15: 0000000000000000
[ 52.453585] Modules linked in:
[ 52.457384] ---[ end trace db9bef1a2174e463 ]---
[ 52.462348] RIP: 0010:__x86_indirect_thunk_rbx+0x10/0x20
[ 52.467786] Code: 90 0f ae e8 eb f9 48 89 04 24 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 1c 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
[ 52.486966] RSP: 0018:ffff8801d89af2b0 EFLAGS: 00010293
[ 52.492409] RAX: ffff8801d49723c0 RBX: 894cdffffc000000 RCX: ffffffff81ed555d
[ 52.499674] RDX: 0000000000000000 RSI: ffffffff81ed5c9e RDI: ffff8801d89af338
[ 52.506997] RBP: ffff8801d89af4a0 R08: ffff8801d49723c0 R09: ffffed003b5e5b67
[ 52.514416] R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801d798da00
[ 52.521806] R13: ffff8801d89af338 R14: 1ffff1003b135e5b R15: dffffc0000000000
[ 52.529078] FS: 0000000001292880(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
[ 52.537347] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 52.543267] CR2: 000000000043ec1e CR3: 000000000946a000 CR4: 00000000001406e0
[ 52.550560] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 52.557825] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 52.565138] Kernel panic - not syncing: Fatal exception
[ 52.571795] Kernel Offset: disabled
[ 52.575422] Rebooting in 86400 seconds..

75
pkg/report/testdata/linux/report/361 vendored Normal file
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@ -0,0 +1,75 @@
TITLE: general protection fault in ipv6_rcv
[ 639.214515] kasan: CONFIG_KASAN_INLINE enabled
[ 639.219296] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 639.226717] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 639.232950] CPU: 0 PID: 3769 Comm: syz-executor.0 Not tainted 5.0.0+ #109
[ 639.239852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 639.249220] RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20
[ 639.254681] Code: c4 ff 48 8d 0c ca e9 bd 42 c4 ff bb f2 ff ff ff 45 30 ff e9 63 47 c4 ff 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
[ 639.273577] RSP: 0018:ffff8880ae807b70 EFLAGS: 00010246
[ 639.278946] RAX: 31699217e0650000 RBX: ffff88808a0b00b6 RCX: ffffffff8607edbe
[ 639.286195] RDX: 1ffff1101141601b RSI: ffffffff8607edc8 RDI: ffff8880879cc580
[ 639.293450] RBP: ffff8880ae807ba8 R08: ffff888063942440 R09: 0000000000000003
[ 639.300742] R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: ffff8880879cc580
[ 639.307991] R13: 0000000000000000 R14: ffff8880879cc5d8 R15: 0000000000000000
[ 639.315269] FS: 00007f8b34dd9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
[ 639.323483] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 639.329345] CR2: 0000001b33a25000 CR3: 0000000008871000 CR4: 00000000001406f0
[ 639.336597] Call Trace:
[ 639.339165] <IRQ>
[ 639.345438] ipv6_rcv+0x10e/0x420
[ 639.383411] __netif_receive_skb_one_core+0x115/0x1a0
[ 639.408343] __netif_receive_skb+0x2c/0x1c0
[ 639.412700] process_backlog+0x206/0x750
[ 639.425443] net_rx_action+0x4fa/0x1070
[ 639.443389] __do_softirq+0x266/0x95a
[ 639.458235] irq_exit+0x180/0x1d0
[ 639.461738] smp_apic_timer_interrupt+0x14a/0x570
[ 639.466581] apic_timer_interrupt+0xf/0x20
[ 639.470824] </IRQ>
[ 639.473046] RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x50
[ 639.478433] Code: 08 41 bc f4 ff ff ff e8 21 9d ea ff 48 c7 05 62 76 e6 08 00 00 00 00 e9 c8 e9 ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <48> 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 48 37 92
[ 639.497337] RSP: 0018:ffff88806b6476f8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 639.505046] RAX: 0000000000000000 RBX: 00007f8b36d31000 RCX: ffffffff8199f565
[ 639.512293] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
[ 639.519563] RBP: ffff88806b647868 R08: ffff888063942440 R09: fffff9400042e0d7
[ 639.526828] R10: fffff9400042e0d6 R11: ffffea00021706b3 R12: ffffea00021706c0
[ 639.534102] R13: ffffea00021706c0 R14: ffffea00021706c8 R15: dffffc0000000000
[ 639.574136] unmap_single_vma+0x19d/0x300
[ 639.578275] unmap_vmas+0x115/0x250
[ 639.595615] exit_mmap+0x2c2/0x530
[ 639.626913] mmput+0x15f/0x4c0
[ 639.630118] do_exit+0x838/0x2fd0
[ 639.659126] do_group_exit+0x135/0x370
[ 639.663033] get_signal+0x399/0x1d50
[ 639.666771] do_signal+0x87/0x1940
[ 639.678308] kobject: 'loop2' (00000000d31c8e68): kobject_uevent_env
[ 639.687367] kobject: 'loop2' (00000000d31c8e68): fill_kobj_path: path = '/devices/virtual/block/loop2'
[ 639.720950] exit_to_usermode_loop+0x244/0x2c0
[ 639.725532] do_syscall_64+0x52d/0x610
[ 639.729421] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 639.734597] RIP: 0033:0x457f29
[ 639.737791] Code: Bad RIP value.
[ 639.741144] RSP: 002b:00007f8b34dd8cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
[ 639.748844] RAX: 0000000000000001 RBX: 000000000073bf08 RCX: 0000000000457f29
[ 639.756100] RDX: 00000000004cc740 RSI: 0000000000000081 RDI: 000000000073bf0c
[ 639.763357] RBP: 000000000073bf00 R08: 0000000000000009 R09: 0000000000000000
[ 639.770611] R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000073bf0c
[ 639.777863] R13: 00007ffe2096bcff R14: 00007f8b34dd99c0 R15: 000000000073bf0c
[ 639.785117] Modules linked in:
[ 639.788352] ---[ end trace 441ef57e90cace2d ]---
[ 639.793119] RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20
[ 639.798585] Code: c4 ff 48 8d 0c ca e9 bd 42 c4 ff bb f2 ff ff ff 45 30 ff e9 63 47 c4 ff 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
[ 639.817531] RSP: 0018:ffff8880ae807b70 EFLAGS: 00010246
[ 639.822880] RAX: 31699217e0650000 RBX: ffff88808a0b00b6 RCX: ffffffff8607edbe
[ 639.830172] RDX: 1ffff1101141601b RSI: ffffffff8607edc8 RDI: ffff8880879cc580
[ 639.837450] RBP: ffff8880ae807ba8 R08: ffff888063942440 R09: 0000000000000003
[ 639.844744] R10: ffffed1015d05bcf R11: ffff8880ae82de7b R12: ffff8880879cc580
[ 639.852052] R13: 0000000000000000 R14: ffff8880879cc5d8 R15: 0000000000000000
[ 639.859353] FS: 00007f8b34dd9700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
[ 639.867604] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 639.873476] CR2: 0000000000457eff CR3: 0000000008871000 CR4: 00000000001406f0
[ 639.880757] Kernel panic - not syncing: Fatal exception in interrupt
[ 639.887953] Kernel Offset: disabled
[ 639.891577] Rebooting in 86400 seconds..

64
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TITLE: general protection fault in shrink_slab
[ 415.516184] kasan: CONFIG_KASAN_INLINE enabled
[ 415.520916] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 415.528301] general protection fault: 0000 [#1] SMP KASAN
[ 415.533831] CPU: 1 PID: 25645 Comm: syz-executor2 Not tainted 4.18.0-rc4-next-20180713+ #7
[ 415.542209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 415.551551] RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20
[ 415.556973] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
[ 415.576129] RSP: 0018:ffff880182546f00 EFLAGS: 00010246
[ 415.581478] RAX: 1ffff10036868ddf RBX: dffffc0000000000 RCX: ffffc90002a1a000
[ 415.588739] RDX: 1ffff10036868dd6 RSI: ffff880182547188 RDI: ffff8801b4346eb0
[ 415.595993] RBP: ffff8801825470f8 R08: ffff880190cd6500 R09: ffffed003ae45fd0
[ 415.603268] R10: ffffed003ae45fd0 R11: ffff8801d722fe87 R12: ffff880182547188
[ 415.610518] R13: ffff8801b4346eb0 R14: ffff8801b4346ed8 R15: ffff8801b4347040
[ 415.617768] FS: 00007f87a801a700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
[ 415.625981] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 415.631855] CR2: 000000000047a9b0 CR3: 00000001cfa25000 CR4: 00000000001406e0
[ 415.639112] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 415.646361] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 415.653619] Call Trace:
[ 415.700128] shrink_slab+0x861/0xa60
[ 415.736752] shrink_node+0x429/0x16a0
[ 415.767765] do_try_to_free_pages+0x3e7/0x1290
[ 415.794550] try_to_free_mem_cgroup_pages+0x49d/0xc90
[ 415.857905] memory_high_write+0x283/0x310
[ 415.875049] cgroup_file_write+0x31f/0x840
[ 415.894025] kernfs_fop_write+0x2ba/0x480
[ 415.898161] __vfs_write+0x117/0x9d0
[ 415.933127] vfs_write+0x1fc/0x560
[ 415.936647] ksys_write+0x101/0x260
[ 415.953426] __x64_sys_write+0x73/0xb0
[ 415.957304] do_syscall_64+0x1b9/0x820
[ 415.994971] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 416.000141] RIP: 0033:0x455ab9
[ 416.003311] Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00
[ 416.022437] RSP: 002b:00007f87a8019c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 416.030125] RAX: ffffffffffffffda RBX: 00007f87a801a6d4 RCX: 0000000000455ab9
[ 416.037375] RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000015
[ 416.044652] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
[ 416.051915] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
[ 416.059186] R13: 00000000004c2c77 R14: 00000000004d4c80 R15: 0000000000000000
[ 416.066456] Modules linked in:
[ 416.069646] Dumping ftrace buffer:
[ 416.073179] (ftrace buffer empty)
[ 416.076938] ---[ end trace 762a7777a52cea47 ]---
[ 416.081720] RIP: 0010:__x86_indirect_thunk_rax+0x10/0x20
[ 416.087182] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e8 07 00 00 00 f3 90 0f ae e8 eb f9 48 89 04 24 <c3> 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 e8 07 00 00 00 f3
[ 416.106465] RSP: 0018:ffff880182546f00 EFLAGS: 00010246
[ 416.106479] RAX: 1ffff10036868ddf RBX: dffffc0000000000 RCX: ffffc90002a1a000
[ 416.106489] RDX: 1ffff10036868dd6 RSI: ffff880182547188 RDI: ffff8801b4346eb0
[ 416.106498] RBP: ffff8801825470f8 R08: ffff880190cd6500 R09: ffffed003ae45fd0
[ 416.106507] R10: ffffed003ae45fd0 R11: ffff8801d722fe87 R12: ffff880182547188
[ 416.106516] R13: ffff8801b4346eb0 R14: ffff8801b4346ed8 R15: ffff8801b4347040
[ 416.106528] FS: 00007f87a801a700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
[ 416.106537] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 416.106546] CR2: 000000000047a9b0 CR3: 00000001cfa25000 CR4: 00000000001406e0
[ 416.106556] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 416.106564] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 416.106571] Kernel panic - not syncing: Fatal exception
[ 416.107052] Dumping ftrace buffer:
[ 416.107057] (ftrace buffer empty)
[ 416.107061] Kernel Offset: disabled
[ 416.200510] Rebooting in 86400 seconds..