syzbot


general protection fault in tipc_conn_close (2)

Status: auto-obsoleted due to no activity on 2023/04/11 05:56
Reported-by: syzbot+bc8bff2d2630cc61df21@syzkaller.appspotmail.com
First crash: 813d, last: 727d
Similar bugs (11)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 general protection fault in tipc_conn_close (2) 2 413d 488d 0/2 auto-obsoleted due to no activity on 2024/01/22 16:54
android-5-15 general protection fault in tipc_conn_close (2) 4 334d 450d 0/2 auto-obsoleted due to no activity on 2024/04/11 01:35
android-54 general protection fault in tipc_conn_close 9 631d 897d 0/2 auto-obsoleted due to no activity on 2023/07/18 14:57
android-5-10 general protection fault in tipc_conn_close (3) 1 453d 453d 0/2 auto-obsoleted due to no activity on 2023/12/14 05:20
upstream general protection fault in tipc_conn_close tipc C 3 2486d 2487d 5/28 fixed on 2018/05/08 18:30
android-6-1 general protection fault in tipc_conn_close 6 306d 533d 0/2 auto-obsoleted due to no activity on 2024/05/18 20:39
linux-4.19 general protection fault in tipc_conn_close C error 3 812d 1319d 0/1 upstream: reported C repro on 2021/05/01 19:58
android-5-10 general protection fault in tipc_conn_close 1 942d 942d 0/2 auto-closed as invalid on 2022/08/12 11:37
upstream general protection fault in tipc_conn_close (3) tipc 1 418d 414d 0/28 auto-obsoleted due to no activity on 2024/01/18 09:00
upstream general protection fault in tipc_conn_close (2) tipc 21 531d 1103d 0/28 auto-obsoleted due to no activity on 2023/10/06 23:51
android-5-15 general protection fault in tipc_conn_close 4 560d 775d 0/2 auto-obsoleted due to no activity on 2023/08/28 21:57

Sample crash report:
general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 1 PID: 32755 Comm: kworker/u4:0 Tainted: G        W         5.10.159-syzkaller-01303-g32e45c58a05f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: netns cleanup_net
RIP: 0010:tipc_conn_close+0x4d/0x130 net/tipc/topsrv.c:157
Code: 24 08 49 89 de 49 c1 ee 03 43 80 3c 3e 00 74 08 48 89 df e8 c5 1c 25 fd 48 89 5d d0 48 8b 1b 48 83 c3 18 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 a4 1c 25 fd 48 8b 1b 4c 8d bb 38
RSP: 0018:ffffc90000eafba8 EFLAGS: 00010206
RAX: 0000000000000003 RBX: 0000000000000018 RCX: ffff88812dc48000
RDX: 0000000000000000 RSI: ffffffff84e8d640 RDI: ffff88812c308400
RBP: ffffc90000eafbd8 R08: ffffffff826cfb6e R09: 0000000000000003
R10: fffff520001d5f6d R11: 1ffff920001d5f6c R12: ffff88812c308400
R13: ffff8881454d2d18 R14: 1ffff11025861081 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbdc797c058 CR3: 000000012d903000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tipc_topsrv_stop net/tipc/topsrv.c:703 [inline]
 tipc_topsrv_exit_net+0x149/0x340 net/tipc/topsrv.c:725
 ops_exit_list net/core/net_namespace.c:194 [inline]
 cleanup_net+0x6e4/0xd70 net/core/net_namespace.c:615
 process_one_work+0x726/0xc10 kernel/workqueue.c:2296
 worker_thread+0xb27/0x1550 kernel/workqueue.c:2442
 kthread+0x349/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299
Modules linked in:
---[ end trace 132ff5916ec4563b ]---
RIP: 0010:tipc_conn_close+0x4d/0x130 net/tipc/topsrv.c:157
Code: 24 08 49 89 de 49 c1 ee 03 43 80 3c 3e 00 74 08 48 89 df e8 c5 1c 25 fd 48 89 5d d0 48 8b 1b 48 83 c3 18 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 a4 1c 25 fd 48 8b 1b 4c 8d bb 38
RSP: 0018:ffffc90000eafba8 EFLAGS: 00010206
RAX: 0000000000000003 RBX: 0000000000000018 RCX: ffff88812dc48000
RDX: 0000000000000000 RSI: ffffffff84e8d640 RDI: ffff88812c308400
RBP: ffffc90000eafbd8 R08: ffffffff826cfb6e R09: 0000000000000003
R10: fffff520001d5f6d R11: 1ffff920001d5f6c R12: ffff88812c308400
R13: ffff8881454d2d18 R14: 1ffff11025861081 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcbc9bccb27 CR3: 00000001446c5000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	24 08                	and    $0x8,%al
   2:	49 89 de             	mov    %rbx,%r14
   5:	49 c1 ee 03          	shr    $0x3,%r14
   9:	43 80 3c 3e 00       	cmpb   $0x0,(%r14,%r15,1)
   e:	74 08                	je     0x18
  10:	48 89 df             	mov    %rbx,%rdi
  13:	e8 c5 1c 25 fd       	callq  0xfd251cdd
  18:	48 89 5d d0          	mov    %rbx,-0x30(%rbp)
  1c:	48 8b 1b             	mov    (%rbx),%rbx
  1f:	48 83 c3 18          	add    $0x18,%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 a4 1c 25 fd       	callq  0xfd251cdd
  39:	48 8b 1b             	mov    (%rbx),%rbx
  3c:	4c                   	rex.WR
  3d:	8d                   	.byte 0x8d
  3e:	bb                   	.byte 0xbb
  3f:	38                   	.byte 0x38

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/12/15 10:03 android12-5.10-lts 32e45c58a05f b18f0a64 .config console log report info ci2-android-5-10 general protection fault in tipc_conn_close
2022/12/05 17:30 android12-5.10-lts 37d3df60cb6a 045cbb84 .config console log report info ci2-android-5-10 general protection fault in tipc_conn_close
2022/11/12 18:50 android12-5.10-lts 0118fb827bc7 f42ee5d8 .config console log report info ci2-android-5-10 general protection fault in tipc_conn_close
2022/10/15 09:16 android12-5.10-lts bc7618b4936f 67cb024c .config console log report info ci2-android-5-10 general protection fault in tipc_conn_close
2022/10/06 20:52 android12-5.10-lts bc7618b4936f 80b58a42 .config console log report info ci2-android-5-10 general protection fault in tipc_conn_close
2022/09/20 07:57 android12-5.10-lts 59390358870a 7c41a9ba .config console log report info ci2-android-5-10 general protection fault in tipc_conn_close
* Struck through repros no longer work on HEAD.