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WARNING in kmsan_get_shadow_address_inline

Status: closed as invalid on 2018/09/12 10:31
Subsystems: net
[Documentation on labels]
First crash: 2123d, last: 2122d

Sample crash report:
------------[ cut here ]------------
kmsan_get_shadow_address_inline(fffffe0000016f08, 8, 1)
WARNING: CPU: 0 PID: 4558 at mm/kmsan/kmsan_instr.c:153 kmsan_get_shadow_address_inline+0x192/0x2e0 mm/kmsan/kmsan_instr.c:153
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4558 Comm: syz-executor061 Not tainted 4.17.0+ #16
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <#DB>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 panic+0x3d0/0x990 kernel/panic.c:184
 __warn+0x40f/0x580 kernel/panic.c:536
 report_bug+0x72a/0x880 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0x1c1/0x620 arch/x86/kernel/traps.c:298
 do_invalid_op+0x46/0x50 arch/x86/kernel/traps.c:317
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:997
RIP: 0010:kmsan_get_shadow_address_inline+0x192/0x2e0 mm/kmsan/kmsan_instr.c:153
RSP: 0018:fffffe0000016da8 EFLAGS: 00010082
RAX: 0000000000000037 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: fffffe0000016df0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff86576dc0 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000008 R15: ffff8801c3851d40
 __msan_poison_alloca+0xa7/0x1d0 mm/kmsan/kmsan_instr.c:582
 do_debug+0x5b/0x800 arch/x86/kernel/traps.c:723
 debug+0x28/0x50 arch/x86/entry/entry_64.S:1156
RIP: 0010:__get_user_4+0x24/0x30 arch/x86/lib/getuser.S:78
RSP: 0018:ffff88019951fcd8 EFLAGS: 00000206
RAX: 0000000020000003 RBX: ffff88019951fce0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 00000000ffffffff RDI: ffffea000adb3500
RBP: ffff88019951fdc8 R08: 0000000001080020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff87d36230 R12: 0000000000000010
R13: 00000000ffffffff R14: 0000000000000010 R15: ffff8801b499c000
 </#DB>
 __sys_setsockopt+0x339/0x540 net/socket.c:1899
 __do_sys_setsockopt net/socket.c:1914 [inline]
 __se_sys_setsockopt net/socket.c:1911 [inline]
 __x64_sys_setsockopt+0x15c/0x1c0 net/socket.c:1911
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x440159
RSP: 002b:00007fff285f5e98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440159
RDX: 000000000000001a RSI: 0000000000000001 RDI: 00000000000003ff
RBP: 00000000006ca018 R08: 0000000000000010 R09: 00000000004002c8
R10: 0000000020000000 R11: 0000000000000246 R12: 00000000004019e0
R13: 0000000000401a70 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (142):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/07/02 18:41 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report syz C ci-upstream-kmsan-gce
2018/07/04 12:27 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 12:08 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 11:02 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 10:00 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 08:56 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 07:43 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 06:42 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 05:37 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 04:30 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 03:23 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 02:04 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 00:50 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/04 00:47 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 22:52 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 21:45 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 20:01 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 18:29 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 16:53 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 15:46 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 13:55 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 12:52 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 10:26 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 08:37 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 06:33 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 05:27 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 04:11 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 03:53 https://github.com/google/kmsan.git master 4ca559bbdeaf 317fc8ea .config console log report ci-upstream-kmsan-gce
2018/07/03 02:07 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/03 00:26 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/03 00:19 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/03 00:17 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/03 00:00 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 23:58 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 23:49 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 22:51 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 21:45 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 21:41 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 21:38 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 21:29 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 21:27 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
2018/07/02 17:57 https://github.com/google/kmsan.git master 6c3632ffef26 574780b0 .config console log report ci-upstream-kmsan-gce
* Struck through repros no longer work on HEAD.