EXT4-fs (loop0): 1 truncate cleaned up EXT4-fs (loop0): mounted filesystem without journal. Opts: jqfmt=vfsold,resgid=0x000000000000ee00,bh,noload,data_err=ignore,usrjquota=,,errors=continue. Quota mode: none. ===================================== WARNING: bad unlock balance detected! 5.15.149-syzkaller #0 Not tainted ------------------------------------- syz-executor233/3507 is trying to release lock (&type->i_mutex_dir_key) at: [] swap_inode_boot_loader fs/ext4/ioctl.c:262 [inline] [] __ext4_ioctl fs/ext4/ioctl.c:1056 [inline] [] ext4_ioctl+0x285a/0x5b80 fs/ext4/ioctl.c:1276 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor233/3507: #0: ffff888077c4e460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 fs/namespace.c:421 stack backtrace: CPU: 1 PID: 3507 Comm: syz-executor233 Not tainted 5.15.149-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_unlock_imbalance_bug+0x248/0x2b0 kernel/locking/lockdep.c:5065 __lock_release kernel/locking/lockdep.c:5302 [inline] lock_release+0x596/0x9a0 kernel/locking/lockdep.c:5643 up_write+0x75/0x4d0 kernel/locking/rwsem.c:1593 swap_inode_boot_loader fs/ext4/ioctl.c:262 [inline] __ext4_ioctl fs/ext4/ioctl.c:1056 [inline] ext4_ioctl+0x285a/0x5b80 fs/ext4/ioctl.c:1276 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f63b44dfb39 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc49d660c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffc49d662a8 RCX: 00007f63b44dfb39 RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004 RBP: 00007f63b4553610 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc49d66298 R14: 0000000000000001 R15: 0000000000000001 ------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff8880742ca168, owner = 0x0, curr 0xffff88807da93b80, list empty WARNING: CPU: 1 PID: 3507 at kernel/locking/rwsem.c:1342 __up_write kernel/locking/rwsem.c:1341 [inline] WARNING: CPU: 1 PID: 3507 at kernel/locking/rwsem.c:1342 up_write+0x473/0x4d0 kernel/locking/rwsem.c:1594 Modules linked in: CPU: 1 PID: 3507 Comm: syz-executor233 Not tainted 5.15.149-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:__up_write kernel/locking/rwsem.c:1341 [inline] RIP: 0010:up_write+0x473/0x4d0 kernel/locking/rwsem.c:1594 Code: 48 c7 c7 80 08 8b 8a 48 c7 c6 40 0b 8b 8a 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 41 11 ea ff 48 83 c4 08 <0f> 0b e9 86 fd ff ff 48 c7 c1 c8 ed e3 8d 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc90002ea7940 EFLAGS: 00010292 RAX: 3bf1e3736039c800 RBX: ffffffff8a8b0960 RCX: ffff88807da93b80 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc90002ea7a10 R08: ffffffff8166625c R09: fffff520005d4e69 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff8880742ca168 R14: 1ffff920005d4f30 R15: dffffc0000000000 FS: 0000555556d48380(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000078f65000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: swap_inode_boot_loader fs/ext4/ioctl.c:262 [inline] __ext4_ioctl fs/ext4/ioctl.c:1056 [inline] ext4_ioctl+0x285a/0x5b80 fs/ext4/ioctl.c:1276 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f63b44dfb39 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc49d660c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffc49d662a8 RCX: 00007f63b44dfb39 RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004 RBP: 00007f63b4553610 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc49d66298 R14: 0000000000000001 R15: 0000000000000001