------------[ cut here ]------------ WARNING: fs/dcache.c:829 at fast_dput+0x334/0x430 fs/dcache.c:829, CPU#0: syz.4.441/8273 Modules linked in: CPU: 0 UID: 0 PID: 8273 Comm: syz.4.441 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:fast_dput+0x334/0x430 fs/dcache.c:829 Code: e3 81 ff 48 b8 00 00 00 00 00 fc ff df 41 0f b6 44 05 00 84 c0 0f 85 e2 00 00 00 41 80 0e 40 e9 fd fe ff ff e8 4d e3 81 ff 90 <0f> 0b 90 e9 ef fe ff ff 44 89 e6 81 e6 00 00 04 00 31 ff e8 74 e7 RSP: 0018:ffffc900031e7918 EFLAGS: 00010293 RAX: ffffffff823fcfe3 RBX: ffff888030e620b8 RCX: ffff888026abbd00 RDX: 0000000000000000 RSI: 00000000ffffff80 RDI: 0000000000000001 RBP: 00000000ffffff80 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff5200063cf14 R12: dffffc0000000000 R13: 1ffff110061cc41f R14: ffff888030e62000 R15: ffff888030e620f8 FS: 0000000000000000(0000) GS:ffff888125e4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f09f29b74e0 CR3: 0000000059f48000 CR4: 00000000003526f0 Call Trace: dput+0xe8/0x1a0 fs/dcache.c:924 __fput+0x68e/0xa70 fs/file_table.c:476 task_work_run+0x1d4/0x260 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6c5/0x2310 kernel/exit.c:971 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6d2098f749 Code: Unable to access opcode bytes at 0x7f6d2098f71f. RSP: 002b:00007f6d1ebee0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f6d20be5fa8 RCX: 00007f6d2098f749 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6d20be5fa8 RBP: 00007f6d20be5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6d20be6038 R14: 00007ffcbe4fe8e0 R15: 00007ffcbe4fe9c8