audit: type=1400 audit(1721439099.419:1502): avc: denied { relabelto } for pid=56744 comm="syz-executor.5" name="file0" dev="sda" ino=16136 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:devtty_t:s0 tclass=file permissive=1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 56759 at kernel/locking/lockdep.c:894 look_up_lock_class+0x86/0x110 kernel/locking/lockdep.c:894 Modules linked in: CPU: 0 PID: 56759 Comm: syz-executor.5 Not tainted 5.10.221 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:look_up_lock_class+0x86/0x110 kernel/locking/lockdep.c:894 Code: 24 e8 ce 02 00 00 4d 85 e4 74 2c 49 39 5c 24 40 75 eb 48 8b 45 18 49 39 84 24 b0 00 00 00 74 1a 48 81 7d 00 00 22 15 86 74 10 <0f> 0b eb 0c e8 41 59 0a fe 85 c0 75 50 45 31 e4 48 83 c4 08 4c 89 RSP: 0018:ffff88805e95f808 EFLAGS: 00010002 RAX: ffffffff84535860 RBX: ffffffff871b9521 RCX: 0000000000000000 RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffff888050005138 RBP: ffff888050005138 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000246 R11: 0000000000000001 R12: ffffffff868b3bc0 R13: ffffffff86bf59e0 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f080c63b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d729000 CR3: 0000000054694000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: register_lock_class+0xbb/0x17b0 kernel/locking/lockdep.c:1244 __lock_acquire+0x102/0x5b00 kernel/locking/lockdep.c:4834 lock_acquire kernel/locking/lockdep.c:5566 [inline] lock_acquire+0x197/0x470 kernel/locking/lockdep.c:5531 down_write_nested+0x96/0x160 kernel/locking/rwsem.c:1667 ext4_double_down_write_data_sem+0x63/0x70 fs/ext4/move_extent.c:58 swap_inode_boot_loader fs/ext4/ioctl.c:172 [inline] __ext4_ioctl+0x16e7/0x4190 fs/ext4/ioctl.c:1065 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f080f0c5b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f080c63b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f080f1d8f60 RCX: 00007f080f0c5b19 RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003 RBP: 00007f080f11ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffca0348bf R14: 00007f080c63b300 R15: 0000000000022000 irq event stamp: 3739 hardirqs last enabled at (3739): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (3739): [] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (3738): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (3738): [] _raw_spin_lock_irqsave+0x4f/0x60 kernel/locking/spinlock.c:159 softirqs last enabled at (3676): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3647): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace b8d077c404f0b80e ]---