syzbot

 sign-in | mailing list | source | docs
🐞 Open [977] ≡ Subsystems 🐞 Fixed [5215] 🐞 Invalid [12468] ⬇ Missing Backports [82] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes 💬 Send us feedback

kernel BUG at mm/kmsan/kmsan.c:LINE! (3)

Status: closed as invalid on 2018/09/13 16:32
Subsystems: net
[Documentation on labels]
First crash: 2120d, last: 2046d
▶ ▼ 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 1672d 1923d 0/26 closed as invalid on 2019/10/08 12:18
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! virt C 64521 2134d 2203d 0/26 closed as invalid on 2018/06/14 09:26
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! (4) net C 542 2000d 2036d 0/26 closed as invalid on 2018/11/16 10:08
upstream kernel BUG at mm/kmsan/kmsan.c:LINE! (2) mm C 55 2122d 2134d 0/26 closed as invalid on 2018/06/27 10:08

Sample crash report:
R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000
Not allocated shadow for addr ffff880195679005 (page ffffea0009806d60)
Attempted to access 8 bytes
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:1386!
invalid opcode: 0000 [#1] SMP PTI
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 4461 Comm: syz-executor009 Not tainted 4.17.0+ #9
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_get_shadow_address+0x1ce/0x1f0 mm/kmsan/kmsan.c:1385
RSP: 0018:ffff8801953af868 EFLAGS: 00010086
RAX: 000000000000001b RBX: 0000000000000640 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: ffff8801953af880 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: ffffffff86575950 R12: ffff8801cc105f74
R13: ffff88019573d7c0 R14: 0000000000000001 R15: 0000000000000008
FS:  0000000002480880(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50a0adf000 CR3: 0000000196892000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __msan_memcpy+0xaf/0x160 mm/kmsan/kmsan_instr.c:403
 tls_fill_prepend include/net/tls.h:278 [inline]
 tls_push_record+0x761/0x1f10 net/tls/tls_sw.c:240
 tls_sw_sendmsg+0x19d3/0x20e0 net/tls/tls_sw.c:484
 inet_sendmsg+0x3fc/0x760 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg net/socket.c:639 [inline]
 __sys_sendto+0x6c4/0x7e0 net/socket.c:1789
 __do_sys_sendto net/socket.c:1801 [inline]
 __se_sys_sendto net/socket.c:1797 [inline]
 __x64_sys_sendto+0x1a1/0x210 net/socket.c:1797
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x440979
RSP: 002b:00007ffd2ad86d88 EFLAGS: 00000212 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440979
RDX: 00000000fffffdef RSI: 00000000200005c0 RDI: 0000000000000003
RBP: 00000000006cc018 R08: 0000000020000000 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004
R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000
Code: 75 29 48 c7 c7 1d 39 97 8a 31 c0 e8 2d 4c 80 ff 80 3c 25 f8 93 53 8b 00 75 11 48 c7 c7 4d 39 97 8a 31 c0 4c 89 fe e8 12 4c 80 ff <0f> 0b eb fe 48 3d ff ff ff 1f 0f 87 a2 fe ff ff 48 8b 1c 25 10 
RIP: kmsan_get_shadow_address+0x1ce/0x1f0 mm/kmsan/kmsan.c:1385 RSP: ffff8801953af868
---[ end trace 782d2001cbd24a42 ]---

Crashes (154):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/06/28 23:47 https://github.com/google/kmsan.git master 123906095e30 dba0b50e .config console log report syz C ci-upstream-kmsan-gce
2018/09/10 10:05 https://github.com/google/kmsan.git master 915c18a6ce9b 6b5120a4 .config console log report ci-upstream-kmsan-gce
2018/09/09 12:12 https://github.com/google/kmsan.git master 42a037ca8d9d 6b5120a4 .config console log report ci-upstream-kmsan-gce
2018/09/07 16:30 https://github.com/google/kmsan.git master 42a037ca8d9d 69cfeb80 .config console log report ci-upstream-kmsan-gce
2018/09/07 00:27 https://github.com/google/kmsan.git master 43e4752ae5dc e30d3b52 .config console log report ci-upstream-kmsan-gce
2018/09/06 03:02 https://github.com/google/kmsan.git master 43e4752ae5dc 873745f2 .config console log report ci-upstream-kmsan-gce
2018/09/04 02:06 https://github.com/google/kmsan.git master 28f0ca98eadf a4718693 .config console log report ci-upstream-kmsan-gce
2018/09/03 11:19 https://github.com/google/kmsan.git master 28f0ca98eadf a4718693 .config console log report ci-upstream-kmsan-gce
2018/09/02 17:23 https://github.com/google/kmsan.git master 28f0ca98eadf a4718693 .config console log report ci-upstream-kmsan-gce
2018/09/02 08:23 https://github.com/google/kmsan.git master 28f0ca98eadf a4718693 .config console log report ci-upstream-kmsan-gce
2018/09/02 05:10 https://github.com/google/kmsan.git master 28f0ca98eadf a4718693 .config console log report ci-upstream-kmsan-gce
2018/09/01 20:17 https://github.com/google/kmsan.git master 28f0ca98eadf a4718693 .config console log report ci-upstream-kmsan-gce
2018/09/01 12:36 https://github.com/google/kmsan.git master 28f0ca98eadf a4718693 .config console log report ci-upstream-kmsan-gce
2018/09/01 10:14 https://github.com/google/kmsan.git master 28f0ca98eadf a4718693 .config console log report ci-upstream-kmsan-gce
2018/08/31 15:07 https://github.com/google/kmsan.git master ab98bd30a4ba a4718693 .config console log report ci-upstream-kmsan-gce
2018/08/30 23:21 https://github.com/google/kmsan.git master 25114c64b719 938220fd .config console log report ci-upstream-kmsan-gce
2018/08/30 14:20 https://github.com/google/kmsan.git master 25114c64b719 938220fd .config console log report ci-upstream-kmsan-gce
2018/08/30 01:37 https://github.com/google/kmsan.git master 2dca2cbde67a 6c7e9d3d .config console log report ci-upstream-kmsan-gce
2018/08/28 18:21 https://github.com/google/kmsan.git master 2dca2cbde67a b771b17e .config console log report ci-upstream-kmsan-gce
2018/08/28 11:24 https://github.com/google/kmsan.git master 72cde92031e1 7ef1de9e .config console log report ci-upstream-kmsan-gce
2018/08/28 05:48 https://github.com/google/kmsan.git master 0cc51dc9a291 7ef1de9e .config console log report ci-upstream-kmsan-gce
2018/08/27 23:09 https://github.com/google/kmsan.git master 0cc51dc9a291 7ef1de9e .config console log report ci-upstream-kmsan-gce
2018/08/27 13:51 https://github.com/google/kmsan.git master 0cc51dc9a291 758cd203 .config console log report ci-upstream-kmsan-gce
2018/08/27 06:07 https://github.com/google/kmsan.git master 0cc51dc9a291 758cd203 .config console log report ci-upstream-kmsan-gce
2018/08/25 04:04 https://github.com/google/kmsan.git master 0cc51dc9a291 9b0f5c75 .config console log report ci-upstream-kmsan-gce
2018/08/24 18:19 https://github.com/google/kmsan.git master 0cc51dc9a291 9b0f5c75 .config console log report ci-upstream-kmsan-gce
2018/08/23 22:36 https://github.com/google/kmsan.git master 0cc51dc9a291 95b5c82b .config console log report ci-upstream-kmsan-gce
2018/08/23 17:14 https://github.com/google/kmsan.git master 0cc51dc9a291 95b5c82b .config console log report ci-upstream-kmsan-gce
2018/08/23 08:52 https://github.com/google/kmsan.git master 0cc51dc9a291 95b5c82b .config console log report ci-upstream-kmsan-gce
2018/08/22 23:51 https://github.com/google/kmsan.git master 0cc51dc9a291 95b5c82b .config console log report ci-upstream-kmsan-gce
2018/08/21 09:41 https://github.com/google/kmsan.git master 0cc51dc9a291 95b5c82b .config console log report ci-upstream-kmsan-gce
2018/08/19 08:40 https://github.com/google/kmsan.git master 0cc51dc9a291 2dc4378f .config console log report ci-upstream-kmsan-gce
2018/08/18 23:48 https://github.com/google/kmsan.git master 0cc51dc9a291 de20bcbb .config console log report ci-upstream-kmsan-gce
2018/08/17 22:54 https://github.com/google/kmsan.git master 0cc51dc9a291 738da825 .config console log report ci-upstream-kmsan-gce
2018/08/17 18:47 https://github.com/google/kmsan.git master 0cc51dc9a291 738da825 .config console log report ci-upstream-kmsan-gce
2018/08/17 14:47 https://github.com/google/kmsan.git master 0cc51dc9a291 738da825 .config console log report ci-upstream-kmsan-gce
2018/08/17 06:48 https://github.com/google/kmsan.git master 0cc51dc9a291 9ccc1d45 .config console log report ci-upstream-kmsan-gce
2018/08/16 18:00 https://github.com/google/kmsan.git master 0cc51dc9a291 9ccc1d45 .config console log report ci-upstream-kmsan-gce
2018/08/15 02:13 https://github.com/google/kmsan.git master 0cc51dc9a291 0e6dcb88 .config console log report ci-upstream-kmsan-gce
2018/08/13 07:36 https://github.com/google/kmsan.git master 0cc51dc9a291 7a88b141 .config console log report ci-upstream-kmsan-gce
2018/08/11 21:49 https://github.com/google/kmsan.git master 0cc51dc9a291 7a88b141 .config console log report ci-upstream-kmsan-gce
2018/08/11 05:18 https://github.com/google/kmsan.git master 0cc51dc9a291 7a88b141 .config console log report ci-upstream-kmsan-gce
2018/08/11 03:22 https://github.com/google/kmsan.git master 0cc51dc9a291 7a88b141 .config console log report ci-upstream-kmsan-gce
2018/07/24 09:29 https://github.com/google/kmsan.git master d1c2a46a46f6 912c93d7 .config console log report ci-upstream-kmsan-gce
2018/06/28 11:40 https://github.com/google/kmsan.git master 123906095e30 dba0b50e .config console log report ci-upstream-kmsan-gce
* Struck through repros no longer work on HEAD.