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kernel BUG at mm/kmsan/kmsan.c:LINE! (4)

Status: closed as invalid on 2018/11/16 10:08
Subsystems: net
[Documentation on labels]
First crash: 2058d, last: 2022d
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! (5) kernel C 21 1694d 1946d 0/26 closed as invalid on 2019/10/08 12:18
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! (3) net C 154 2069d 2143d 0/26 closed as invalid on 2018/09/13 16:32
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! virt C 64521 2157d 2225d 0/26 closed as invalid on 2018/06/14 09:26
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! (2) mm C 55 2144d 2157d 0/26 closed as invalid on 2018/06/27 10:08

Sample crash report:
kauditd_printk_skb: 3 callbacks suppressed
audit: type=1804 audit(1539288977.267:31): pid=6558 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor124" name="/root/bus" dev="sda1" ino=16482 res=1
Not allocated shadow for addr ffff8801a1ce3096 (page ffffea0009cad520)
Attempted to access 8 bytes
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:1091!
invalid opcode: 0000 [#1] SMP
CPU: 0 PID: 6559 Comm: syz-executor124 Not tainted 4.19.0-rc7+ #68
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1089
Code: e9 89 00 00 00 c7 04 25 20 73 28 8c 01 00 00 00 65 48 8b 04 25 00 fd 02 00 c6 80 7b 09 00 00 01 80 3c 25 38 73 28 8c 00 74 0c <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 c7 c7 9c bd 57 8b 31 c0 4c
RSP: 0018:ffff8801a1d0f2a0 EFLAGS: 00010046
RAX: 000000000000001b RBX: 0000000000000000 RCX: c6812d92a6c1a100
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffff8801a1d0f2d0 R08: 0000000000000000 R09: ffff88021fc38f50
R10: 0000000000000000 R11: ffffffff862609d0 R12: 0000000000000000
R13: ffff8801a1ce3096 R14: 0000000000000001 R15: ffff8801b64a5fe4
FS:  00007f0b28b24700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002000 CR3: 000000000b82f000 CR4: 00000000001406f0
Call Trace:
 __msan_memcpy+0xa3/0x150 mm/kmsan/kmsan_instr.c:276
 tls_fill_prepend include/net/tls.h:374 [inline]
 tls_push_record+0x803/0x1fb0 net/tls/tls_sw.c:220
 tls_sw_push_pending_record+0x6e/0x80 net/tls/tls_sw.c:257
 tls_handle_open_record net/tls/tls_main.c:156 [inline]
 tls_sk_proto_close+0x39e/0x1120 net/tls/tls_main.c:271
 inet_release+0x24f/0x2c0 net/ipv4/af_inet.c:428
 inet6_release+0xaf/0x100 net/ipv6/af_inet6.c:457
 __sock_release net/socket.c:579 [inline]
 sock_close+0x13f/0x400 net/socket.c:1141
 __fput+0x4e8/0xda0 fs/file_table.c:278
 ____fput+0x37/0x40 fs/file_table.c:309
 task_work_run+0x467/0x500 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0x15c1/0x3f80 kernel/exit.c:869
 do_group_exit+0x1a0/0x350 kernel/exit.c:972
 get_signal+0x1693/0x2390 kernel/signal.c:2513
 do_signal+0x1ed/0x2da0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x293/0x470 arch/x86/entry/common.c:197
 syscall_return_slowpath+0x112/0x880 arch/x86/entry/common.c:268
 do_syscall_64+0xe4/0x100 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x446e79
Code: Bad RIP value.
RSP: 002b:00007f0b28b23da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00000000006dcc58 RCX: 0000000000446e79
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dcc58
RBP: 00000000006dcc50 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc5c
R13: 4000000000000001 R14: 00007f0b28b249c0 R15: 0000000000000001
Modules linked in:
---[ end trace 8f6c30d058770501 ]---
RIP: 0010:kmsan_get_shadow_address+0x2d6/0x3d0 mm/kmsan/kmsan.c:1089
Code: e9 89 00 00 00 c7 04 25 20 73 28 8c 01 00 00 00 65 48 8b 04 25 00 fd 02 00 c6 80 7b 09 00 00 01 80 3c 25 38 73 28 8c 00 74 0c <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 48 c7 c7 9c bd 57 8b 31 c0 4c
RSP: 0018:ffff8801a1d0f2a0 EFLAGS: 00010046
RAX: 000000000000001b RBX: 0000000000000000 RCX: c6812d92a6c1a100
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffff8801a1d0f2d0 R08: 0000000000000000 R09: ffff88021fc38f50
R10: 0000000000000000 R11: ffffffff862609d0 R12: 0000000000000000
R13: ffff8801a1ce3096 R14: 0000000000000001 R15: ffff8801b64a5fe4
FS:  00007f0b28b24700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000446e4f CR3: 000000000b82f000 CR4: 00000000001406f0

Crashes (542):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/10/11 20:19 https://github.com/google/kmsan.git master 0c0a1fff3508 ba6ddb43 .config console log report syz C ci-upstream-kmsan-gce
2018/09/21 11:58 https://github.com/google/kmsan.git master 7ace43031cfc 37079712 .config console log report syz C ci-upstream-kmsan-gce
2018/10/27 06:39 https://github.com/google/kmsan.git master 4bb25354f0b0 a8292de9 .config console log report ci-upstream-kmsan-gce
2018/10/27 02:10 https://github.com/google/kmsan.git master 4bb25354f0b0 a8292de9 .config console log report ci-upstream-kmsan-gce
2018/10/26 15:34 https://github.com/google/kmsan.git master 4bb25354f0b0 a8292de9 .config console log report ci-upstream-kmsan-gce
2018/10/24 12:57 https://github.com/google/kmsan.git master 4bb25354f0b0 a8292de9 .config console log report ci-upstream-kmsan-gce
2018/10/20 15:28 https://github.com/google/kmsan.git master 4bb25354f0b0 ecb386fe .config console log report ci-upstream-kmsan-gce
2018/10/17 02:26 https://github.com/google/kmsan.git master 22ec98c3e38f 1ba7fd7e .config console log report ci-upstream-kmsan-gce
2018/10/15 12:19 https://github.com/google/kmsan.git master 22ec98c3e38f caf12900 .config console log report ci-upstream-kmsan-gce
2018/10/14 20:53 https://github.com/google/kmsan.git master 22ec98c3e38f caf12900 .config console log report ci-upstream-kmsan-gce
2018/10/13 16:48 https://github.com/google/kmsan.git master 22ec98c3e38f caf12900 .config console log report ci-upstream-kmsan-gce
2018/10/12 16:02 https://github.com/google/kmsan.git master 22ec98c3e38f caf12900 .config console log report ci-upstream-kmsan-gce
2018/10/10 07:54 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/10 04:45 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/10 03:11 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 20:10 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 18:46 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 15:36 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 13:58 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 13:49 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 11:23 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 08:23 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 05:37 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/09 00:24 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 23:07 https://github.com/google/kmsan.git master c2d21df4c5af 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 17:57 https://github.com/google/kmsan.git master 43c85fe5a0ee 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 16:54 https://github.com/google/kmsan.git master 43c85fe5a0ee 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 14:25 https://github.com/google/kmsan.git master 43c85fe5a0ee 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 11:09 https://github.com/google/kmsan.git master 43c85fe5a0ee 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 09:56 https://github.com/google/kmsan.git master 43c85fe5a0ee 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 09:48 https://github.com/google/kmsan.git master 43c85fe5a0ee 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 08:10 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 07:01 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 03:17 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 01:43 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/08 00:16 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/07 22:27 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/07 17:45 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/07 15:45 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/07 13:49 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/07 12:07 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/07 12:04 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/10/07 10:46 https://github.com/google/kmsan.git master b2efdb2ef006 8b311eaf .config console log report ci-upstream-kmsan-gce
2018/09/21 06:17 https://github.com/google/kmsan.git master 9cb6f201b7dc 6cee973c .config console log report ci-upstream-kmsan-gce
* Struck through repros no longer work on HEAD.