INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 10280 Comm: syz-executor.1 Not tainted 4.14.307-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
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
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 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: 0033:0x7f5919dadfab
RSP: 002b:00007ffe0b611d40 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f5919dadfab
RDX: 00007f59199701b0 RSI: ffffffffffffffff RDI: 0000000000000003
RBP: 00007f5919f1d980 R08: 0000000000000000 R09: 00007f5919970000
R10: 00007f59199701b8 R11: 0000000000000293 R12: 000000000004e67a
R13: 00007ffe0b611e40 R14: 00007f5919f1bf80 R15: 0000000000000032
Alternate GPT is invalid, using primary GPT.
 loop2: p2 p3 p7
EXT4-fs (loop4): can't mount with journal_checksum, fs mounted w/o journal
kvm [10649]: vcpu0, guest rIP: 0x913f disabled perfctr wrmsr: 0xc1 data 0x0
kvm [10649]: vcpu0, guest rIP: 0x913f disabled perfctr wrmsr: 0xc2 data 0x0
kvm [10649]: vcpu0, guest rIP: 0x913f ignored wrmsr: 0x11e data 0x0
Alternate GPT is invalid, using primary GPT.
 loop2: p2 p3 p7
Alternate GPT is invalid, using primary GPT.
 loop2: p2 p3 p7
Alternate GPT is invalid, using primary GPT.
 loop2: p2 p3 p7
sock: process `syz-executor.0' is using obsolete getsockopt SO_BSDCOMPAT
Alternate GPT is invalid, using primary GPT.
 loop2: p2 p3 p7
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Alternate GPT is invalid, using primary GPT.
 loop5: p2 p3 p7
EXT4-fs error (device loop3): ext4_ext_check_inode:510: inode #2: comm syz-executor.3: pblk 0 bad header/extent: invalid eh_max - magic f30a, entries 1, max 0(0), depth 0(0)
print_req_error: I/O error, dev loop5, sector 0
Buffer I/O error on dev loop5, logical block 0, async page read
ldm_validate_partition_table(): Disk read failed.
Dev loop5: unable to read RDB block 0
 loop5: unable to read partition table
loop5: partition table beyond EOD, truncated
EXT4-fs (loop3): Remounting filesystem read-only
EXT4-fs (loop3): get root inode failed
EXT4-fs (loop3): mount failed
print_req_error: I/O error, dev loop3, sector 24
do_dccp_setsockopt: sockopt(CHANGE_L/R) is deprecated: fix your app
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.2'.
Quota error (device loop0): v2_read_file_info: Block with free entry too big (54 >= 6).
EXT4-fs warning (device loop0): ext4_enable_quotas:5780: Failed to enable quota tracking (type=-1, err=-117). Please run e2fsck to fix.
EXT4-fs (loop0): mount failed
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'.
EXT4-fs error (device loop4): mb_free_blocks:1464: group 0, inode 16: block 39:freeing already freed block (bit 39); block bitmap corrupt.
Quota error (device loop0): v2_read_file_info: Block with free entry too big (54 >= 6).
EXT4-fs (loop4): Remounting filesystem read-only
EXT4-fs error (device loop4): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 42 vs 43 free clusters
EXT4-fs warning (device loop0): ext4_enable_quotas:5780: Failed to enable quota tracking (type=-1, err=-117). Please run e2fsck to fix.
Quota error (device loop4): dqput: Can't write quota structure (error -30). Quota may get out of sync!
Quota error (device loop4): dqput: Can't write quota structure (error -30). Quota may get out of sync!
EXT4-fs (loop4): 1 orphan inode deleted
EXT4-fs (loop0): mount failed
EXT4-fs (loop4): mounting with "discard" option, but the device does not support discard
EXT4-fs (loop4): mounted filesystem without journal. Opts: errors=remount-ro,sysvgroups,dioread_lock,resuid=0x0000000000000000,data_err=abort,data_err=abort,max_dir_size_kb=0x0000000000000006,discard,usrquota,
syz-executor.4 (11033) used greatest stack depth: 24616 bytes left
Quota error (device loop0): v2_read_file_info: Block with free entry too big (54 >= 6).
EXT4-fs warning (device loop0): ext4_enable_quotas:5780: Failed to enable quota tracking (type=-1, err=-117). Please run e2fsck to fix.
EXT4-fs (loop0): mount failed
EXT4-fs error (device loop4): mb_free_blocks:1464: group 0, inode 16: block 39:freeing already freed block (bit 39); block bitmap corrupt.
EXT4-fs (loop4): Remounting filesystem read-only
Quota error (device loop0): v2_read_file_info: Block with free entry too big (54 >= 6).
EXT4-fs error (device loop4): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 42 vs 43 free clusters
EXT4-fs warning (device loop0): ext4_enable_quotas:5780: Failed to enable quota tracking (type=-1, err=-117). Please run e2fsck to fix.
Quota error (device loop4): dqput: Can't write quota structure (error -30). Quota may get out of sync!
Quota error (device loop4): dqput: Can't write quota structure (error -30). Quota may get out of sync!
EXT4-fs (loop0): mount failed
EXT4-fs (loop4): 1 orphan inode deleted
EXT4-fs (loop4): mounting with "discard" option, but the device does not support discard
EXT4-fs (loop4): mounted filesystem without journal. Opts: errors=remount-ro,sysvgroups,dioread_lock,resuid=0x0000000000000000,data_err=abort,data_err=abort,max_dir_size_kb=0x0000000000000006,discard,usrquota,
EXT4-fs error (device loop4): mb_free_blocks:1464: group 0, inode 16: block 39:freeing already freed block (bit 39); block bitmap corrupt.
EXT4-fs (loop4): Remounting filesystem read-only
EXT4-fs error (device loop4): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 42 vs 43 free clusters
Quota error (device loop4): dqput: Can't write quota structure (error -30). Quota may get out of sync!
Quota error (device loop4): dqput: Can't write quota structure (error -30). Quota may get out of sync!
EXT4-fs (loop4): 1 orphan inode deleted
EXT4-fs (loop4): mounting with "discard" option, but the device does not support discard
EXT4-fs (loop4): mounted filesystem without journal. Opts: errors=remount-ro,sysvgroups,dioread_lock,resuid=0x0000000000000000,data_err=abort,data_err=abort,max_dir_size_kb=0x0000000000000006,discard,usrquota,
EXT4-fs error (device loop4): mb_free_blocks:1464: group 0, inode 16: block 39:freeing already freed block (bit 39); block bitmap corrupt.
EXT4-fs (loop4): Remounting filesystem read-only
EXT4-fs error (device loop4): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 42 vs 43 free clusters
EXT4-fs (loop4): 1 orphan inode deleted
EXT4-fs (loop4): mounting with "discard" option, but the device does not support discard
EXT4-fs (loop4): mounted filesystem without journal. Opts: errors=remount-ro,sysvgroups,dioread_lock,resuid=0x0000000000000000,data_err=abort,data_err=abort,max_dir_size_kb=0x0000000000000006,discard,usrquota,
kvm: emulating exchange as write