loop0: detected capacity change from 0 to 32768 UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list ERROR: (device loop0): xtSearch: xt_getpage: xtree page corrupt ERROR: (device loop0): remounting filesystem as read-only ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: kernel/locking/lockdep.c:238 at hlock_class kernel/locking/lockdep.c:238 [inline], CPU#0: syz.0.0/5345 WARNING: kernel/locking/lockdep.c:238 at check_wait_context kernel/locking/lockdep.c:4854 [inline], CPU#0: syz.0.0/5345 WARNING: kernel/locking/lockdep.c:238 at __lock_acquire+0x39d/0x2cf0 kernel/locking/lockdep.c:5187, CPU#0: syz.0.0/5345 Modules linked in: CPU: 0 UID: 0 PID: 5345 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:hlock_class kernel/locking/lockdep.c:238 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4854 [inline] RIP: 0010:__lock_acquire+0x3a4/0x2cf0 kernel/locking/lockdep.c:5187 Code: 18 00 4c 8b 74 24 08 75 27 90 e8 07 9f fe 02 85 c0 74 1c 83 3d 70 1a 4f 0e 00 75 13 48 8d 3d 63 31 52 0e 48 c7 c6 f5 a7 de 8d <67> 48 0f b9 3a 90 31 c0 0f b6 98 c4 00 00 00 41 8b 45 20 25 ff 1f RSP: 0018:ffffc9000e58f230 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000040000 RCX: 0000000000100000 RDX: ffffc90020001000 RSI: ffffffff8ddea7f5 RDI: ffffffff8ff285a0 RBP: 0000000000000004 R08: ffffffff8fef6ea3 R09: 1ffffffff1fdedd4 R10: dffffc0000000000 R11: fffffbfff1fdedd5 R12: 0000000000000f1a R13: ffff8880395b0bd0 R14: ffff8880395b0000 R15: ffff8880395b0b30 FS: 00007f1d928576c0(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000003000 CR3: 0000000011919000 CR4: 0000000000352ef0 Call Trace: lock_acquire+0x106/0x330 kernel/locking/lockdep.c:5868 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:162 __wake_up_common_lock+0x2f/0x1f0 kernel/sched/wait.c:124 unlock_metapage fs/jfs/jfs_metapage.c:40 [inline] release_metapage+0x13c/0xac0 fs/jfs/jfs_metapage.c:871 xtTruncate+0xecd/0x2f20 fs/jfs/jfs_xtree.c:-1 jfs_truncate_nolock+0x2a7/0x340 fs/jfs/inode.c:381 jfs_truncate+0xce/0x140 fs/jfs/inode.c:420 jfs_write_begin+0x6f/0x80 fs/jfs/inode.c:308 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4314 generic_file_write_iter+0x14a/0x680 mm/filemap.c:4457 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:686 ksys_write+0x150/0x270 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1d9199aeb9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1d92857028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f1d91c15fa0 RCX: 00007f1d9199aeb9 RDX: 0000000000001006 RSI: 0000200000002100 RDI: 0000000000000005 RBP: 00007f1d91a08c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1d91c16038 R14: 00007f1d91c15fa0 R15: 00007ffed7096d28 ---------------- Code disassembly (best guess): 0: 18 00 sbb %al,(%rax) 2: 4c 8b 74 24 08 mov 0x8(%rsp),%r14 7: 75 27 jne 0x30 9: 90 nop a: e8 07 9f fe 02 call 0x2fe9f16 f: 85 c0 test %eax,%eax 11: 74 1c je 0x2f 13: 83 3d 70 1a 4f 0e 00 cmpl $0x0,0xe4f1a70(%rip) # 0xe4f1a8a 1a: 75 13 jne 0x2f 1c: 48 8d 3d 63 31 52 0e lea 0xe523163(%rip),%rdi # 0xe523186 23: 48 c7 c6 f5 a7 de 8d mov $0xffffffff8ddea7f5,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 90 nop 30: 31 c0 xor %eax,%eax 32: 0f b6 98 c4 00 00 00 movzbl 0xc4(%rax),%ebx 39: 41 8b 45 20 mov 0x20(%r13),%eax 3d: 25 .byte 0x25 3e: ff 1f lcall *(%rdi)