syzbot


kernel BUG in rxrpc_disconnect_client_call

Status: auto-closed as invalid on 2021/12/24 05:37
Reported-by: syzbot+@syzkaller.appspotmail.com
First crash: 429d, last: 429d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 kernel BUG at net/rxrpc/conn_client.c:LINE! C error 325 25d 1215d 0/1 upstream: reported C repro on 2019/07/31 18:51

Sample crash report:
------------[ cut here ]------------
kernel BUG at net/rxrpc/conn_client.c:815!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 18178 Comm: syz-executor.2 Not tainted 5.15.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rxrpc_disconnect_client_call+0x9b4/0xa00 net/rxrpc/conn_client.c:815
Code: fa ff ff 89 d9 80 e1 07 38 c1 0f 8c e9 fe ff ff 48 89 df e8 2e 5d 92 f8 e9 dc fe ff ff e8 14 04 47 f8 48 89 ef e8 6c da bf 00 <0f> 0b e8 05 04 47 f8 48 c7 c7 80 f5 92 8b 48 89 ee 48 89 ea 48 c7
RSP: 0018:ffffc90016c1faf0 EFLAGS: 00010286
RAX: 0000000080000000 RBX: 1ffff11003731c1b RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffff8880722dc230 R08: dffffc0000000000 R09: ffffed100e45b847
R10: ffffed100e45b847 R11: 0000000000000000 R12: ffff88801b98e000
R13: 000000000000000f R14: ffff888166d78540 R15: ffff8880722dc200
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f600e16ddc0 CR3: 000000003d2b7000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rxrpc_release_call+0x494/0x5a0 net/rxrpc/call_object.c:548
 rxrpc_release_calls_on_socket+0x2b4/0x330 net/rxrpc/call_object.c:577
 rxrpc_release_sock net/rxrpc/af_rxrpc.c:886 [inline]
 rxrpc_release+0x262/0x430 net/rxrpc/af_rxrpc.c:917
 __sock_release net/socket.c:649 [inline]
 sock_close+0xd8/0x260 net/socket.c:1314
 __fput+0x3fe/0x870 fs/file_table.c:280
 task_work_run+0x146/0x1c0 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0x6fc/0x2580 kernel/exit.c:825
 do_group_exit+0x168/0x2d0 kernel/exit.c:922
 __do_sys_exit_group+0x13/0x20 kernel/exit.c:933
 __se_sys_exit_group+0x10/0x10 kernel/exit.c:931
 __x64_sys_exit_group+0x37/0x40 kernel/exit.c:931
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f765a128709
Code: Unable to access opcode bytes at RIP 0x7f765a1286df.
RSP: 002b:00007f765769ebc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f765a22cf60 RCX: 00007f765a128709
RDX: 00007f765a128709 RSI: 0000000000000000 RDI: 000000000000000b
RBP: 000000000000000b R08: 0000000000000000 R09: 00007f765a22cf60
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffed724011f R14: 00007f765769f300 R15: 0000000000022000
Modules linked in:
---[ end trace cc16fdafa8459516 ]---
RIP: 0010:rxrpc_disconnect_client_call+0x9b4/0xa00 net/rxrpc/conn_client.c:815
Code: fa ff ff 89 d9 80 e1 07 38 c1 0f 8c e9 fe ff ff 48 89 df e8 2e 5d 92 f8 e9 dc fe ff ff e8 14 04 47 f8 48 89 ef e8 6c da bf 00 <0f> 0b e8 05 04 47 f8 48 c7 c7 80 f5 92 8b 48 89 ee 48 89 ea 48 c7
RSP: 0018:ffffc90016c1faf0 EFLAGS: 00010286
RAX: 0000000080000000 RBX: 1ffff11003731c1b RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffff8880722dc230 R08: dffffc0000000000 R09: ffffed100e45b847
R10: ffffed100e45b847 R11: 0000000000000000 R12: ffff88801b98e000
R13: 000000000000000f R14: ffff888166d78540 R15: ffff8880722dc200
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000330f4000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/09/25 05:37 upstream 4c4f0c2bf341 8cac236e .config log report info kernel BUG in rxrpc_disconnect_client_call
* Struck through repros no longer work on HEAD.