netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'.
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 10425 Comm: syz-executor.2 Not tainted 4.14.307-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 register_lock_class+0x389/0x1180 kernel/locking/lockdep.c:768
 __lock_acquire+0x167/0x3f20 kernel/locking/lockdep.c:3378
 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
 flush_work+0xad/0x770 kernel/workqueue.c:2890
 __cancel_work_timer+0x321/0x460 kernel/workqueue.c:2965
 smc_close_active+0x7e2/0xbb0 net/smc/smc_close.c:207
 smc_release+0x3e1/0x5d0 net/smc/af_smc.c:131
 __sock_release+0xcd/0x2b0 net/socket.c:602
 sock_close+0x15/0x20 net/socket.c:1139
 __fput+0x25f/0x7a0 fs/file_table.c:210
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 get_signal+0x18a3/0x1ca0 kernel/signal.c:2223
 do_signal+0x7c/0x1550 arch/x86/kernel/signal.c:792
 exit_to_usermode_loop+0x160/0x200 arch/x86/entry/common.c:160
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f2ea34e30f9
RSP: 002b:00007f2ea1a55168 EFLAGS: 00000246 ORIG_RAX: 000000000000010e
RAX: fffffffffffffdfe RBX: 00007f2ea3602f80 RCX: 00007f2ea34e30f9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000040
RBP: 00007f2ea353eae9 R08: 00000000200001c0 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffd3666c4f R14: 00007f2ea1a55300 R15: 0000000000022000
BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop5
BTRFS error (device loop5): unsupported checksum algorithm 1
BTRFS error (device loop5): superblock checksum mismatch
BTRFS error (device loop5): open_ctree failed
hfs: unable to load iocharset "mactu˝cp869"
hfs: unable to parse mount options
BTRFS error (device loop5): unsupported checksum algorithm 1
BTRFS error (device loop5): superblock checksum mismatch
BTRFS error (device loop5): open_ctree failed
audit: type=1326 audit(1677563424.643:6): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=10645 comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f2ea34e30f9 code=0x0
audit: type=1326 audit(1677563424.663:7): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=10645 comm="syz-executor.2" exe="/root/syz-executor.2" sig=31 arch=c000003e syscall=3 compat=0 ip=0x7f2ea3494fab code=0x0
BTRFS error (device loop5): unsupported checksum algorithm 1
BTRFS error (device loop5): superblock checksum mismatch
BTRFS error (device loop5): open_ctree failed
BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop4
BTRFS info (device loop4): unrecognized mount option 'ref_verify'
BTRFS error (device loop5): unsupported checksum algorithm 1
BTRFS error (device loop5): superblock checksum mismatch
BTRFS error (device loop4): open_ctree failed
BTRFS error (device loop5): open_ctree failed
BTRFS info (device loop4): unrecognized mount option 'ref_verify'
BTRFS error (device loop4): open_ctree failed
EXT4-fs error (device loop5): ext4_free_blocks:4893: comm syz-executor.5: Freeing blocks in system zone - Block = 8, count = 50
EXT4-fs (loop5): Remounting filesystem read-only
EXT4-fs (loop5): 1 truncate cleaned up
EXT4-fs (loop5): mounted filesystem without journal. Opts: nobarrier,noblock_validity,lazytime,barrier=0x000000007fff0009,errors=remount-ro,resgid=0x0000000000000000,errors=remount-ro,resgid=0x000000000000ee01,resgid=0x000000000000ee002
XFS (loop0): unknown mount option [nolazytime].
BTRFS info (device loop4): unrecognized mount option 'ref_verify'
BTRFS error (device loop4): open_ctree failed
EXT4-fs error (device loop2): ext4_free_blocks:4893: comm syz-executor.2: Freeing blocks in system zone - Block = 8, count = 50
EXT4-fs error (device loop5): ext4_free_blocks:4893: comm syz-executor.5: Freeing blocks in system zone - Block = 8, count = 50
EXT4-fs (loop2): Remounting filesystem read-only
EXT4-fs (loop2): 1 truncate cleaned up
EXT4-fs (loop5): Remounting filesystem read-only
EXT4-fs (loop2): mounted filesystem without journal. Opts: nobarrier,noblock_validity,lazytime,barrier=0x000000007fff0009,errors=remount-ro,resgid=0x0000000000000000,errors=remount-ro,resgid=0x000000000000ee01,resgid=0x000000000000ee002
EXT4-fs (loop5): 1 truncate cleaned up
BTRFS info (device loop4): unrecognized mount option 'ref_verify'
EXT4-fs (loop5): mounted filesystem without journal. Opts: nobarrier,noblock_validity,lazytime,barrier=0x000000007fff0009,errors=remount-ro,resgid=0x0000000000000000,errors=remount-ro,resgid=0x000000000000ee01,resgid=0x000000000000ee002
BTRFS error (device loop4): open_ctree failed
EXT4-fs error (device loop5): ext4_free_blocks:4893: comm syz-executor.5: Freeing blocks in system zone - Block = 8, count = 50
EXT4-fs (loop5): Remounting filesystem read-only
EXT4-fs (loop5): 1 truncate cleaned up
EXT4-fs (loop5): mounted filesystem without journal. Opts: nobarrier,noblock_validity,lazytime,barrier=0x000000007fff0009,errors=remount-ro,resgid=0x0000000000000000,errors=remount-ro,resgid=0x000000000000ee01,resgid=0x000000000000ee002
EXT4-fs error (device loop5): ext4_free_blocks:4893: comm syz-executor.5: Freeing blocks in system zone - Block = 8, count = 50
EXT4-fs (loop5): Remounting filesystem read-only
EXT4-fs (loop5): 1 truncate cleaned up
EXT4-fs (loop5): mounted filesystem without journal. Opts: nobarrier,noblock_validity,lazytime,barrier=0x000000007fff0009,errors=remount-ro,resgid=0x0000000000000000,errors=remount-ro,resgid=0x000000000000ee01,resgid=0x000000000000ee002