================================================ WARNING: lock held when returning to user space! 6.18.0-rc7-next-20251128 #1 Not tainted ------------------------------------------------ syz-executor.6/98109 is leaving the kernel with locks still held! 1 lock held by syz-executor.6/98109: #0: ffff88804abd3788 (&sb->s_type->i_mutex_key#19/1){+.+.}-{4:4}, at: start_creating_noperm+0x84/0xd0 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 UID: 0 PID: 98116 Comm: syz-executor.2 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_fail_alloc_page+0xe0/0x110 prepare_alloc_pages+0x1eb/0x550 __alloc_frozen_pages_noprof+0x17f/0x2000 alloc_pages_mpol+0xed/0x340 vma_alloc_folio_noprof+0xe9/0x230 __handle_mm_fault+0x1519/0x3600 handle_mm_fault+0x2d8/0x750 __get_user_pages+0x62f/0x2f00 __gup_longterm_locked+0xba7/0x1760 gup_fast_fallback+0x7c9/0x22d0 pin_user_pages_fast+0xa7/0x100 iov_iter_extract_pages+0x84d/0x1e00 bio_iov_iter_get_pages+0x35a/0x11d0 blkdev_direct_IO+0x13e7/0x1e50 blkdev_read_iter+0x27f/0x510 aio_read+0x2a3/0x450 io_submit_one+0x5a7/0x1a90 __x64_sys_io_submit+0x182/0x2e0 do_syscall_64+0xbf/0x420 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efeb648eb19 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:00007efeb3a04188 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007efeb65a1f60 RCX: 00007efeb648eb19 RDX: 0000000020000380 RSI: 00000000000000ef RDI: 00007efeb657d000 RBP: 00007efeb3a041d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffef751c17f R14: 00007efeb3a04300 R15: 0000000000022000 Process accounting paused