syzbot


WARNING in qnx4_kill_sb

Status: auto-closed as invalid on 2021/05/24 09:36
Reported-by: syzbot+c45bf62ba2c3aa90d77d@syzkaller.appspotmail.com
First crash: 530d, last: 529d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in qnx4_kill_sb (2) 2 79d 86d 0/1 upstream: reported on 2022/04/12 10:20

Sample crash report:
 kmem_cache_zalloc include/linux/slab.h:651 [inline]
 get_empty_filp+0x86/0x3e0 fs/file_table.c:123
 alloc_file+0x23/0x440 fs/file_table.c:164
 sock_alloc_file+0x113/0x2e0 net/socket.c:416
 sock_map_fd net/socket.c:439 [inline]
 SYSC_socket net/socket.c:1349 [inline]
 SyS_socket+0x108/0x1b0 net/socket.c:1325
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6514 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163
Kernel panic - not syncing: panic_on_warn set ...

 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45e219
RSP: 002b:00007f1d53b0bc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000029
RBP: 00007f1d53b0bca0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005
R13: 00007ffcba7331ff R14: 00007f1d53b0c9c0 R15: 000000000119bf8c
CPU: 1 PID: 6514 Comm: syz-executor.4 Not tainted 4.14.217-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
device batadv0 entered promiscuous mode
 report_bug+0x208/0x250 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
device batadv0 left promiscuous mode
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:kill_block_super+0xbe/0xe0 fs/super.c:1163
RSP: 0018:ffff88809184fbb0 EFLAGS: 00010246
device batadv0 left promiscuous mode
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc90009be7000
RDX: 0000000000040000 RSI: ffffffff8186f5ae RDI: ffff8880b1be1c30
RBP: ffff888077f4a7c0 R08: ffffffff8b98a910 R09: 0000000000000001
R10: 0000000000000000 R11: ffff88809b54a1c0 R12: ffff8880b1be1780
R13: ffffffff891e0870 R14: ffffffff88f44f00 R15: dffffc0000000000
 qnx4_kill_sb+0x38/0x90 fs/qnx4/inode.c:239
 deactivate_locked_super+0x6c/0xd0 fs/super.c:319
 sget_userns+0x9c4/0xc10 fs/super.c:537
 sget+0xd1/0x110 fs/super.c:572
 mount_bdev+0xcd/0x360 fs/super.c:1107
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2549 [inline]
 do_mount+0xe53/0x2a00 fs/namespace.c:2879
 SYSC_mount fs/namespace.c:3095 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3072
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x460c6a
RSP: 002b:00007f9d5d7f0a78 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9d5d7f0b10 RCX: 0000000000460c6a
RDX: 0000000020000000 RSI: 0000000020000080 RDI: 00007f9d5d7f0ad0
RBP: 00007f9d5d7f0ad0 R08: 00007f9d5d7f0b10 R09: 0000000020000000
R10: 0000000000000001 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000080 R14: 00000000200003c0 R15: 00000000200024c0
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/01/24 09:36 linux-4.14.y 2d2791fce891 52e37319 .config log report info WARNING in qnx4_kill_sb
ci2-linux-4-14 2021/01/23 03:15 linux-4.14.y 2762b48e9611 52e37319 .config log report info WARNING in qnx4_kill_sb