XFS (loop0): log I/O error -5 XFS (loop0): Filesystem has been shut down due to log error (0x2). XFS (loop0): Please unmount the filesystem and rectify the problem(s). ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x77/0x1f80 kernel/locking/lockdep.c:4926 Read of size 8 at addr ffff888141a55058 by task kworker/0:1H/1028 CPU: 0 PID: 1028 Comm: kworker/0:1H Not tainted 6.1.34-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Workqueue: xfs-log/loop0 xlog_ioend_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 __lock_acquire+0x77/0x1f80 kernel/locking/lockdep.c:4926 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5669 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:350 [inline] xfs_trans_committed_bulk+0xd6/0x830 fs/xfs/xfs_trans.c:773 xlog_cil_committed+0x269/0xed0 fs/xfs/xfs_log_cil.c:795 xlog_cil_process_committed+0x155/0x1a0 fs/xfs/xfs_log_cil.c:823 xlog_state_shutdown_callbacks+0x2b6/0x3a0 fs/xfs/xfs_log.c:538 xlog_force_shutdown+0x328/0x380 fs/xfs/xfs_log.c:3821 xlog_ioend_work+0xa9/0x100 fs/xfs/xfs_log.c:1402 process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2289 worker_thread+0xa5f/0x1210 kernel/workqueue.c:2436 kthread+0x26e/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Allocated by task 3569: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] kmem_alloc+0x15c/0x420 fs/xfs/kmem.c:20 kmem_zalloc fs/xfs/kmem.h:69 [inline] xfs_trans_ail_init+0x20/0x240 fs/xfs/xfs_trans_ail.c:902 xfs_log_mount+0x213/0x770 fs/xfs/xfs_log.c:721 xfs_mountfs+0xcbb/0x1f00 fs/xfs/xfs_mount.c:805 xfs_fs_fill_super+0xf90/0x11e0 fs/xfs/xfs_super.c:1666 get_tree_bdev+0x3fe/0x620 fs/super.c:1346 vfs_get_tree+0x88/0x270 fs/super.c:1553 do_new_mount+0x28b/0xae0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 3553: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x25c/0x3c0 mm/slub.c:3674 xfs_log_unmount+0x51/0xc0 fs/xfs/xfs_log.c:1116 xfs_unmountfs+0x12c/0x1e0 fs/xfs/xfs_mount.c:1081 xfs_fs_put_super+0x6c/0x2c0 fs/xfs/xfs_super.c:1115 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7a/0xe0 fs/super.c:1450 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff888141a55000 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 88 bytes inside of 256-byte region [ffff888141a55000, ffff888141a55100) The buggy address belongs to the physical page: page:ffffea0005069500 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x141a54 head:ffffea0005069500 order:1 compound_mapcount:0 compound_pincount:0 flags: 0x57ff00000010200(slab|head|node=1|zone=2|lastcpupid=0x7ff) raw: 057ff00000010200 0000000000000000 dead000000000122 ffff888012441b40 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 3553, tgid 3553 (syz-executor.0), ts 53396708402, free_ts 14459015980 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2533 prep_new_page mm/page_alloc.c:2540 [inline] get_page_from_freelist+0x32ed/0x3480 mm/page_alloc.c:4292 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5559 __alloc_pages_node include/linux/gfp.h:237 [inline] alloc_slab_page+0x59/0x150 mm/slub.c:1796 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xa71/0x1080 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc_node+0xa2/0x230 mm/slab_common.c:962 kmalloc_array_node include/linux/slab.h:666 [inline] kcalloc_node include/linux/slab.h:671 [inline] memcg_alloc_slab_cgroups+0x7d/0x120 mm/memcontrol.c:2885 memcg_slab_post_alloc_hook mm/slab.h:528 [inline] slab_post_alloc_hook+0xae/0x370 mm/slab.h:745 slab_alloc_node mm/slub.c:3398 [inline] __kmem_cache_alloc_node+0x137/0x260 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc_node+0xa2/0x230 mm/slab_common.c:962 kmalloc_node include/linux/slab.h:579 [inline] kvmalloc_node+0x6e/0x180 mm/util.c:581 kvmalloc include/linux/slab.h:706 [inline] alloc_fdtable+0x154/0x280 fs/file.c:141 dup_fd+0x831/0xc50 fs/file.c:354 copy_files+0xe6/0x200 kernel/fork.c:1628 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1460 [inline] free_pcp_prepare mm/page_alloc.c:1510 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3388 free_unref_page+0x98/0x570 mm/page_alloc.c:3484 qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x162/0x180 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x50/0x370 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] slab_alloc mm/slub.c:3406 [inline] __kmem_cache_alloc_lru mm/slub.c:3413 [inline] kmem_cache_alloc_lru+0x10c/0x2d0 mm/slub.c:3429 __d_alloc+0x31/0x710 fs/dcache.c:1769 d_alloc fs/dcache.c:1849 [inline] d_alloc_parallel+0xca/0x1390 fs/dcache.c:2638 __lookup_slow+0x113/0x3d0 fs/namei.c:1670 lookup_slow+0x53/0x70 fs/namei.c:1702 walk_component fs/namei.c:1993 [inline] link_path_walk+0x9d6/0xee0 fs/namei.c:2320 path_lookupat+0xa9/0x450 fs/namei.c:2473 filename_lookup+0x251/0x600 fs/namei.c:2503 vfs_statx+0x107/0x4b0 fs/stat.c:229 vfs_fstatat fs/stat.c:267 [inline] __do_sys_newfstatat fs/stat.c:437 [inline] __se_sys_newfstatat fs/stat.c:431 [inline] __x64_sys_newfstatat+0x151/0x1e0 fs/stat.c:431 Memory state around the buggy address: ffff888141a54f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888141a54f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888141a55000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888141a55080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888141a55100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc 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