EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 1 PID: 22603 Comm: syz-executor.4 Not tainted 4.19.152-syzkaller #0 EXT4-fs (loop2): group descriptors corrupted! Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 assign_lock_key kernel/locking/lockdep.c:727 [inline] register_lock_class+0xf05/0x12f0 kernel/locking/lockdep.c:753 __lock_acquire+0x18a/0x3ff0 kernel/locking/lockdep.c:3303 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3907 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x90/0xe0 kernel/locking/spinlock.c:152 skb_dequeue+0x1c/0x180 net/core/skbuff.c:2819 skb_queue_purge+0x21/0x30 net/core/skbuff.c:2857 l2cap_chan_del+0x616/0x900 net/bluetooth/l2cap_core.c:637 l2cap_chan_close+0x108/0x820 net/bluetooth/l2cap_core.c:757 l2cap_sock_shutdown+0x941/0xde0 net/bluetooth/l2cap_sock.c:1159 l2cap_sock_release+0x63/0x1c0 net/bluetooth/l2cap_sock.c:1202 __sock_release+0xcd/0x2a0 net/socket.c:579 sock_close+0x15/0x20 net/socket.c:1140 __fput+0x2ce/0x8a0 fs/file_table.c:278 task_work_run+0x141/0x1c0 kernel/task_work.c:113 get_signal+0x1da6/0x2270 kernel/signal.c:2399 do_signal+0x8f/0x1690 arch/x86/kernel/signal.c:821 exit_to_usermode_loop+0x204/0x2c0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x57c/0x670 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45de59 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7c69798c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: fffffffffffffffc RBX: 0000000000002180 RCX: 000000000045de59 RDX: 000000000000000e RSI: 0000000020000040 RDI: 0000000000000007 RBP: 000000000118c008 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bfd4 R13: 00007ffdffcf769f R14: 00007f7c697999c0 R15: 000000000118bfd4 EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! Bluetooth: hci1: command 0x0405 tx timeout EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=0) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=0) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=0) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (20931!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (34636!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (34636!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (34636!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (35066!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (35066!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Checksum for group 0 failed (35066!=58978) EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck? EXT4-fs (loop2): VFS: Found ext4 filesystem with invalid superblock checksum. Run e2fsck?