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BUG: KASAN: slab-use-after-free in xfs_inode_item_push+0x248/0x290 fs/xfs/xfs_inode_item.c:796
Read of size 8 at addr ffff0000f4652550 by task xfsaild/loop0/7674

CPU: 1 UID: 0 PID: 7674 Comm: xfsaild/loop0 Not tainted 6.14.0-rc5-syzkaller-g14d05f12084d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0x198/0x550 mm/kasan/report.c:521
 kasan_report+0xd8/0x138 mm/kasan/report.c:634
 __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381
 xfs_inode_item_push+0x248/0x290 fs/xfs/xfs_inode_item.c:796
 xfsaild_push_item fs/xfs/xfs_trans_ail.c:390 [inline]
 xfsaild_push fs/xfs/xfs_trans_ail.c:518 [inline]
 xfsaild+0xba4/0x29e4 fs/xfs/xfs_trans_ail.c:700
 kthread+0x65c/0x7b0 kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862

Allocated by task 7628:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:68
 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:562
 unpoison_slab_object mm/kasan/common.c:319 [inline]
 __kasan_slab_alloc+0x74/0x8c mm/kasan/common.c:345
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4115 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 kmem_cache_alloc_noprof+0x254/0x410 mm/slub.c:4171
 xfs_inode_item_init+0x3c/0xc0 fs/xfs/xfs_inode_item.c:891
 xfs_trans_ijoin+0xe4/0x120 fs/xfs/libxfs/xfs_trans_inode.c:36
 xfs_setattr_size+0x540/0xcc0 fs/xfs/xfs_iops.c:968
 xfs_vn_setattr_size fs/xfs/xfs_iops.c:1054 [inline]
 xfs_vn_setattr+0x308/0x3a0 fs/xfs/xfs_iops.c:1079
 notify_change+0x9f0/0xca0 fs/attr.c:552
 do_truncate+0x1c0/0x28c fs/open.c:65
 handle_truncate fs/namei.c:3451 [inline]
 do_open fs/namei.c:3834 [inline]
 path_openat+0x249c/0x2b1c fs/namei.c:3989
 do_filp_open+0x1e8/0x404 fs/namei.c:4016
 do_sys_openat2+0x124/0x1b8 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_sys_openat fs/open.c:1459 [inline]
 __se_sys_openat fs/open.c:1454 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1454
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Freed by task 6438:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:68
 kasan_save_free_info+0x54/0x6c mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x64/0x8c mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2353 [inline]
 slab_free mm/slub.c:4609 [inline]
 kmem_cache_free+0x198/0x554 mm/slub.c:4711
 xfs_inode_item_destroy+0x80/0x94 fs/xfs/xfs_inode_item.c:913
 xfs_inode_free_callback+0x154/0x1cc fs/xfs/xfs_icache.c:161
 rcu_do_batch kernel/rcu/tree.c:2546 [inline]
 rcu_core+0x898/0x1b5c kernel/rcu/tree.c:2802
 rcu_core_si+0x10/0x1c kernel/rcu/tree.c:2819
 handle_softirqs+0x320/0xd34 kernel/softirq.c:561
 __do_softirq+0x14/0x20 kernel/softirq.c:595

The buggy address belongs to the object at ffff0000f4652520
 which belongs to the cache xfs_ili of size 264
The buggy address is located 48 bytes inside of
 freed 264-byte region [ffff0000f4652520, ffff0000f4652628)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x134652
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 05ffc00000000000 ffff0000c4a73500 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800c000c 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000f4652400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000f4652480: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff0000f4652500: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
                                                 ^
 ffff0000f4652580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000f4652600: fb fb fb fb fb fc fc fc fc fc fc fc fc 00 00 00
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