Hello, syzbot found the following issue on:
HEAD commit: 89a312991dc6 Merge tag 'cifs-fixes-7.3-rc2' of https://git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12e4bc15580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c5c3949d762a91f dashboard link: https://syzkaller.appspot.com/bug?extid=de3d7f9bcc9212f3fae1 compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-89a31299.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2299fb3a049a/vmlinux-89a31299.xz kernel image: https://storage.googleapis.com/syzbot-assets/556be545d7b6/bzImage-89a31299.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: [email protected] Cannot find set identified by id 0 to match ------------[ cut here ]------------ !reader WARNING: kernel/trace/ring_buffer.c:7927 at ring_buffer_map_get_reader+0x5f3/0x930 kernel/trace/ring_buffer.c:7927, CPU#0: syz.2.1764/13608 Modules linked in: CPU: 0 UID: 0 PID: 13608 Comm: syz.2.1764 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:ring_buffer_map_get_reader+0x5f3/0x930 kernel/trace/ring_buffer.c:7927 Code: ff 48 89 df e8 2e 21 fe ff 48 89 c5 e8 46 8b fb ff 48 85 ed 0f 85 9f fc ff ff 4c 8b 74 24 58 4c 8b 7c 24 60 e8 2e 8b fb ff 90 <0f> 0b 90 e8 25 8b fb ff 49 8d bf d0 01 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffffc90006b57d98 EFLAGS: 00010087 RAX: 000000000000086c RBX: ffff88801c0e5000 RCX: ffffc90024800000 RDX: 0000000000080000 RSI: ffffffff821064e2 RDI: ffff888027852580 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88801c0e50b0 R12: ffff88801c0e50b8 R13: dffffc0000000000 R14: ffff88801c0e5198 R15: ffff88801c0ab800 FS: 00007fa41bfdb6c0(0000) GS:ffff8880d5b61000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f60453c8ff8 CR3: 0000000035d0b000 CR4: 0000000000352ef0 Call Trace: <TASK> tracing_buffers_ioctl+0x2e6/0x3d0 kernel/trace/trace.c:7392 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa41b19e159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa41bfdb028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa41b425fa0 RCX: 00007fa41b19e159 RDX: 0000000000000000 RSI: 0000000000005220 RDI: 0000000000000007 RBP: 00007fa41b235024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa41b426038 R14: 00007fa41b425fa0 R15: 00007ffd22388a08 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at [email protected]. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
