NILFS (loop0): I/O error reading meta-data file (ino=3, block-offset=0) NILFS (loop0): disposed unprocessed dirty file(s) when stopping log writer Buffer I/O error on dev loop0, logical block 1020, lost sync page write NILFS (loop0): unable to write superblock: err=-5 Buffer I/O error on dev loop0, logical block 1, lost sync page write NILFS (loop0): unable to write superblock: err=-5 ================================================================== BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline] BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] BUG: KASAN: slab-use-after-free in mapping_unevictable include/linux/pagemap.h:260 [inline] BUG: KASAN: slab-use-after-free in folio_evictable mm/internal.h:370 [inline] BUG: KASAN: slab-use-after-free in lru_add_fn+0x2cc/0x1a20 mm/swap.c:183 Read of size 8 at addr ffff888068507760 by task syz-executor.0/5394 CPU: 0 PID: 5394 Comm: syz-executor.0 Tainted: G W 6.10.0-rc1-next-20240603-syzkaller-03461-g861a3cb5a2a8 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:91 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:117 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] mapping_unevictable include/linux/pagemap.h:260 [inline] folio_evictable mm/internal.h:370 [inline] lru_add_fn+0x2cc/0x1a20 mm/swap.c:183 folio_batch_move_lru+0x31f/0x690 mm/swap.c:219 lru_add_drain_cpu+0x10e/0x8c0 mm/swap.c:656 lru_add_drain+0x123/0x3e0 mm/swap.c:756 __folio_batch_release+0x55/0xa0 mm/swap.c:1077 folio_batch_release include/linux/pagevec.h:101 [inline] writeback_get_folio mm/page-writeback.c:2461 [inline] writeback_iter+0x742/0x18d0 mm/page-writeback.c:2564 writeback_use_writepage mm/page-writeback.c:2633 [inline] do_writepages+0x4b9/0x870 mm/page-writeback.c:2659 __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1651 writeback_single_inode+0x21b/0x7a0 fs/fs-writeback.c:1772 write_inode_now+0x1d1/0x260 fs/fs-writeback.c:2822 iput_final fs/inode.c:1728 [inline] iput+0x5d7/0x930 fs/inode.c:1767 nilfs_put_super+0xd7/0x160 fs/nilfs2/super.c:507 generic_shutdown_super+0x136/0x2d0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1676 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1267 task_work_run+0x24f/0x310 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa7e227efd7 Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffc449b6f98 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000064 RCX: 00007fa7e227efd7 RDX: 0000000000000200 RSI: 0000000000000009 RDI: 00007ffc449b8140 RBP: 00007fa7e22c83b9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000202 R12: 00007ffc449b8140 R13: 00007fa7e22c83b9 R14: 0000555571a06430 R15: 0000000000000005 Allocated by task 5486: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3941 [inline] slab_alloc_node mm/slub.c:4001 [inline] kmem_cache_alloc_lru_noprof+0x139/0x2b0 mm/slub.c:4020 nilfs_alloc_inode+0x2e/0xf0 fs/nilfs2/super.c:154 alloc_inode fs/inode.c:261 [inline] iget5_locked+0xa4/0x280 fs/inode.c:1235 nilfs_iget_locked+0x12b/0x180 fs/nilfs2/inode.c:606 nilfs_ifile_read+0x30/0x1b0 fs/nilfs2/ifile.c:192 nilfs_attach_checkpoint+0xed/0x1a0 fs/nilfs2/super.c:557 nilfs_fill_super+0x380/0x6a0 fs/nilfs2/super.c:1067 nilfs_get_tree+0x4f9/0x920 fs/nilfs2/super.c:1211 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 5394: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2196 [inline] slab_free mm/slub.c:4437 [inline] kmem_cache_free+0x145/0x350 mm/slub.c:4512 rcu_do_batch kernel/rcu/tree.c:2564 [inline] rcu_core+0xafd/0x1830 kernel/rcu/tree.c:2838 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 Last potentially related work creation: kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541 __call_rcu_common kernel/rcu/tree.c:3101 [inline] call_rcu+0x167/0xa70 kernel/rcu/tree.c:3205 nilfs_put_root+0x97/0xc0 fs/nilfs2/the_nilfs.c:925 nilfs_segctor_destroy fs/nilfs2/segment.c:2788 [inline] nilfs_detach_log_writer+0x8ca/0xbe0 fs/nilfs2/segment.c:2850 nilfs_put_super+0x4d/0x160 fs/nilfs2/super.c:498 generic_shutdown_super+0x136/0x2d0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1676 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1267 task_work_run+0x24f/0x310 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff8880685072c0 which belongs to the cache nilfs2_inode_cache of size 1504 The buggy address is located 1184 bytes inside of freed 1504-byte region [ffff8880685072c0, ffff8880685078a0) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x68500 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 memcg:ffff888028009101 flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xfdffffff(slab) raw: 00fff00000000040 ffff88801abf8000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000140014 00000001fdffffff ffff888028009101 head: 00fff00000000040 ffff88801abf8000 dead000000000122 0000000000000000 head: 0000000000000000 0000000000140014 00000001fdffffff ffff888028009101 head: 00fff00000000003 ffffea0001a14001 ffffffffffffffff 0000000000000000 head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 5462, tgid 5461 (syz-executor.0), ts 86226978978, free_ts 17356274030 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1470 prep_new_page mm/page_alloc.c:1478 [inline] get_page_from_freelist+0x2cbd/0x2d70 mm/page_alloc.c:3457 __alloc_pages_noprof+0x256/0x6c0 mm/page_alloc.c:4715 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline] alloc_pages_node_noprof include/linux/gfp.h:296 [inline] alloc_slab_page+0x5f/0x120 mm/slub.c:2265 allocate_slab+0x5a/0x2f0 mm/slub.c:2428 new_slab mm/slub.c:2481 [inline] ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3667 __slab_alloc+0x58/0xa0 mm/slub.c:3757 __slab_alloc_node mm/slub.c:3810 [inline] slab_alloc_node mm/slub.c:3989 [inline] kmem_cache_alloc_lru_noprof+0x1c5/0x2b0 mm/slub.c:4020 nilfs_alloc_inode+0x2e/0xf0 fs/nilfs2/super.c:154 alloc_inode fs/inode.c:261 [inline] iget5_locked+0xa4/0x280 fs/inode.c:1235 nilfs_iget_locked+0x12b/0x180 fs/nilfs2/inode.c:606 nilfs_dat_read+0xc3/0x310 fs/nilfs2/dat.c:508 nilfs_load_super_root fs/nilfs2/the_nilfs.c:120 [inline] load_nilfs+0x56f/0x1090 fs/nilfs2/the_nilfs.c:301 nilfs_fill_super+0x310/0x6a0 fs/nilfs2/super.c:1062 nilfs_get_tree+0x4f9/0x920 fs/nilfs2/super.c:1211 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 page last free pid 1 tgid 1 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1089 [inline] free_unref_page+0xd22/0xea0 mm/page_alloc.c:2621 free_contig_range+0x9e/0x160 mm/page_alloc.c:6674 destroy_args+0x8a/0x890 mm/debug_vm_pgtable.c:1017 debug_vm_pgtable+0x4be/0x550 mm/debug_vm_pgtable.c:1397 do_one_initcall+0x248/0x880 init/main.c:1267 do_initcall_level+0x157/0x210 init/main.c:1329 do_initcalls+0x3f/0x80 init/main.c:1345 kernel_init_freeable+0x435/0x5d0 init/main.c:1578 kernel_init+0x1d/0x2b0 init/main.c:1467 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Memory state around the buggy address: ffff888068507600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888068507680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888068507700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888068507780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888068507800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================