syzbot


BUG: corrupted list in corrupted

Status: upstream: reported C repro on 2020/09/27 07:51
Reported-by: syzbot+66dbd7f76c5d8712a1f9@syzkaller.appspotmail.com
First crash: 635d, last: 265d

Fix bisection: failed (bisect log)
similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: corrupted list in corrupted (2) syz 1 1170d 1170d 0/22 closed as invalid on 2019/04/12 11:15
upstream BUG: corrupted list in corrupted C 4 1427d 1428d 0/22 closed as invalid on 2018/07/29 11:55
upstream BUG: corrupted list in corrupted (3) C 1 735d 731d 0/22 closed as dup on 2020/06/24 12:45
upstream KMSAN: uninit-value in corrupted syz 2 224d 224d 0/22 closed as invalid on 2021/11/18 13:55
android-54 BUG: unable to handle kernel NULL pointer dereference in corrupted C 182 12h55m 564d 0/2 upstream: reported C repro on 2020/12/07 19:36
upstream BUG: unable to handle kernel paging request in corrupted (3) C done 45 235d 403d 22/22 fixed on 2021/11/10 00:50
upstream KASAN: use-after-free Read in corrupted (4) C done error 7 21d 682d 0/22 upstream: reported C repro on 2020/08/11 12:47

Sample crash report:
list_del corruption, ffff888090fef738->next is LIST_POISON1 (dead000000000100)
list_del corruption, ffff88808c627738->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:45!
kernel BUG at lib/list_debug.c:45!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8117 Comm: syz-executor889 Not tainted 4.19.196-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45
Code: e8 74 41 f7 ff 0f 0b 48 89 ee 48 c7 c7 60 df b3 88 e8 63 41 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 de b3 88 e8 4f 41 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 00 df b3 88 e8 3b 41 f7 ff 0f 0b
RSP: 0018:ffff88808c627610 EFLAGS: 00010086
RAX: 000000000000004e RBX: ffff88808c627720 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dfc91 RDI: ffffed10118c4eb4
RBP: ffff88808c627738 R08: 000000000000004e R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200
R13: dead000000000100 R14: ffff88808c627740 R15: 0000000000000007
FS:  00007f20beccd700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d05e0 CR3: 00000000b3cbf000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:117 [inline]
 list_del include/linux/list.h:125 [inline]
 __remove_wait_queue include/linux/wait.h:184 [inline]
 remove_wait_queue+0x2c/0x180 kernel/sched/wait.c:44
 tipc_send_group_bcast+0x317/0xa10 net/tipc/socket.c:1022
 __tipc_sendmsg+0xa2b/0x1320 net/tipc/socket.c:1314
 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:1279
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2225
 __sys_sendmmsg+0x195/0x470 net/socket.c:2320
 __do_sys_sendmmsg net/socket.c:2349 [inline]
 __se_sys_sendmmsg net/socket.c:2346 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2346
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x445809
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f20beccd318 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00000000004ca408 RCX: 0000000000445809
RDX: 080000000000010b RSI: 0000000020000a40 RDI: 0000000000000003
RBP: 00000000004ca400 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004ca40c
R13: 00007ffd6f9c140f R14: 00007f20beccd400 R15: 0000000000022000
Modules linked in:
---[ end trace 5f2b68af4e6e0c32 ]---
invalid opcode: 0000 [#2] PREEMPT SMP KASAN
RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45
CPU: 1 PID: 8110 Comm: syz-executor889 Tainted: G      D           4.19.196-syzkaller #0
Code: e8 74 41 f7 ff 0f 0b 48 89 ee 48 c7 c7 60 df b3 88 e8 63 41 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 de b3 88 e8 4f 41 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 00 df b3 88 e8 3b 41 f7 ff 0f 0b
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RSP: 0018:ffff88808c627610 EFLAGS: 00010086
RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45
RAX: 000000000000004e RBX: ffff88808c627720 RCX: 0000000000000000
Code: e8 74 41 f7 ff 0f 0b 48 89 ee 48 c7 c7 60 df b3 88 e8 63 41 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 de b3 88 e8 4f 41 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 00 df b3 88 e8 3b 41 f7 ff 0f 0b
RDX: 0000000000000000 RSI: ffffffff814dfc91 RDI: ffffed10118c4eb4
RSP: 0018:ffff888090fef610 EFLAGS: 00010086
RBP: ffff88808c627738 R08: 000000000000004e R09: 0000000000000000
RAX: 000000000000004e RBX: ffff888090fef720 RCX: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200
RDX: 0000000000000000 RSI: ffffffff814dfc91 RDI: ffffed10121fdeb4
R13: dead000000000100 R14: ffff88808c627740 R15: 0000000000000007
RBP: ffff888090fef738 R08: 000000000000004e R09: 0000000000000000
FS:  00007f20beccd700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
R13: dead000000000100 R14: ffff888090fef740 R15: 0000000000000007
CR2: 00000000004d05e0 CR3: 00000000b3cbf000 CR4: 00000000001406f0
FS:  00007f20beccd700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
CR2: 00007ffd6f9c9000 CR3: 000000009f145000 CR4: 00000000001406e0

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2021/07/04 04:08 linux-4.19.y 9f84340f012e 55aa55c2 .config log report syz C BUG: corrupted list in corrupted
ci2-linux-4-19 2020/10/20 16:19 linux-4.19.y ad326970d25c ff4a3345 .config log report syz C
ci2-linux-4-19 2020/09/27 07:51 linux-4.19.y 10ad6cfd5736 5dd8aee8 .config log report syz C