R13: 00007ffeba86273f R14: 00007f094c20c300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ================================================ WARNING: lock held when returning to user space! 6.18.0-rc7-next-20251128 #1 Not tainted ------------------------------------------------ CPU: 0 UID: 0 PID: 9260 Comm: syz-executor.7 Not tainted 6.18.0-rc7-next-20251128 #1 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 should_fail_ex+0x4d7/0x5e0 should_failslab+0xc2/0x120 kmem_cache_alloc_noprof+0x80/0x710 ext4_init_io_end+0x27/0x180 ext4_do_writepages+0xc87/0x37b0 ext4_writepages+0x369/0x7a0 do_writepages+0x244/0x5c0 filemap_writeback+0x223/0x2d0 filemap_write_and_wait_range.part.0+0x8c/0x110 kiocb_write_and_wait+0xe6/0x1f0 __iomap_dio_rw+0x5c4/0x1c30 iomap_dio_rw+0x40/0xa0 ext4_file_read_iter+0x2f6/0x4a0 copy_splice_read+0x5c2/0xc00 do_splice_read+0x22f/0x2a0 splice_direct_to_actor+0x2a8/0x9d0 do_splice_direct+0x179/0x250 do_sendfile+0xa8e/0xdc0 __x64_sys_sendfile64+0x1d3/0x210 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe1fb223b19 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:00007fe1f8799188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe1fb336f60 RCX: 00007fe1fb223b19 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 00007fe1f87991d0 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000246 R12: 0000000000000002 R13: 00007fff6697349f R14: 00007fe1f8799300 R15: 0000000000022000 syz-executor.1/9262 is leaving the kernel with locks still held! 1 lock held by syz-executor.1/9262: #0: ffff88801a590188 (&sb->s_type->i_mutex_key#29/1){+.+.}-{4:4}, at: start_creating_noperm+0x84/0xd0