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BUG: KASAN: slab-use-after-free in ext4_xattr_delete_inode+0xd41/0xd50 fs/ext4/xattr.c:2951
Read of size 4 at addr ffff88801a6e5000 by task syz-executor/5733

CPU: 1 PID: 5733 Comm: syz-executor Not tainted 6.10.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 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
 ext4_xattr_delete_inode+0xd41/0xd50 fs/ext4/xattr.c:2951
 ext4_evict_inode+0xb1c/0xf50 fs/ext4/inode.c:268
 evict+0x2a8/0x630 fs/inode.c:667
 d_delete_notify include/linux/fsnotify.h:326 [inline]
 vfs_rmdir+0x3d7/0x510 fs/namei.c:4227
 do_rmdir+0x3b5/0x580 fs/namei.c:4273
 __do_sys_unlinkat fs/namei.c:4449 [inline]
 __se_sys_unlinkat fs/namei.c:4443 [inline]
 __x64_sys_unlinkat+0xe0/0xf0 fs/namei.c:4443
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f48db47c6c7
Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe4584c4e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f48db47c6c7
RDX: 0000000000000200 RSI: 00007ffe4584d690 RDI: 00000000ffffff9c
RBP: 00007f48db4c8336 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffe4584d690
R13: 00007f48db4c8336 R14: 0000000000016f9a R15: 0000000000000007
 </TASK>

Allocated by task 5581:
 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+0x4b/0x60 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3940 [inline]
 slab_alloc_node mm/slub.c:4000 [inline]
 kmem_cache_alloc_noprof+0x12a/0x270 mm/slub.c:4007
 vma_lock_alloc kernel/fork.c:441 [inline]
 vm_area_dup kernel/fork.c:494 [inline]
 dup_mmap kernel/fork.c:697 [inline]
 dup_mm kernel/fork.c:1688 [inline]
 copy_mm+0xc85/0x2240 kernel/fork.c:1737
 copy_process+0x1872/0x3db0 kernel/fork.c:2390
 kernel_clone+0x223/0x870 kernel/fork.c:2797
 __do_sys_clone kernel/fork.c:2940 [inline]
 __se_sys_clone kernel/fork.c:2924 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Freed by task 5596:
 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+0x12/0x30 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2195 [inline]
 slab_free mm/slub.c:4436 [inline]
 kmem_cache_free+0x126/0x310 mm/slub.c:4511
 vma_lock_free kernel/fork.c:453 [inline]
 __vm_area_free+0x6b/0x80 kernel/fork.c:509
 remove_vma mm/mmap.c:146 [inline]
 exit_mmap+0x6ee/0xd10 mm/mmap.c:3365
 __mmput+0x115/0x3c0 kernel/fork.c:1346
 exec_mmap+0x651/0x6e0 fs/exec.c:1063
 begin_new_exec+0x125f/0x1f40 fs/exec.c:1329
 load_elf_binary+0x974/0x2620 fs/binfmt_elf.c:996
 search_binary_handler fs/exec.c:1797 [inline]
 exec_binprm fs/exec.c:1839 [inline]
 bprm_execve+0xaf8/0x17b0 fs/exec.c:1891
 do_execveat_common+0x553/0x700 fs/exec.c:1998
 do_execve fs/exec.c:2072 [inline]
 __do_sys_execve fs/exec.c:2148 [inline]
 __se_sys_execve fs/exec.c:2143 [inline]
 __x64_sys_execve+0x92/0xb0 fs/exec.c:2143
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff88801a6e5000
 which belongs to the cache vma_lock of size 152
The buggy address is located 0 bytes inside of
 freed 152-byte region [ffff88801a6e5000, ffff88801a6e5098)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88801a6e5ca8 pfn:0x1a6e5
flags: 0xfff00000000200(workingset|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffefff(slab)
raw: 00fff00000000200 ffff888016a6bc80 ffffea0001e43d50 ffffea0000a15810
raw: ffff88801a6e5ca8 0000000000120001 00000001ffffefff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 4966, tgid 4966 (dhcpcd-run-hook), ts 45096746002, free_ts 45092308622
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1ee/0x220 mm/page_alloc.c:1468
 prep_new_page mm/page_alloc.c:1476 [inline]
 get_page_from_freelist+0x2df3/0x2eb0 mm/page_alloc.c:3402
 __alloc_pages_noprof+0x256/0x6b0 mm/page_alloc.c:4660
 __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:2264
 allocate_slab+0x5a/0x2e0 mm/slub.c:2427
 new_slab mm/slub.c:2480 [inline]
 ___slab_alloc+0xcd8/0x14b0 mm/slub.c:3666
 __slab_alloc+0x58/0xa0 mm/slub.c:3756
 __slab_alloc_node mm/slub.c:3809 [inline]
 slab_alloc_node mm/slub.c:3988 [inline]
 kmem_cache_alloc_noprof+0x1b6/0x270 mm/slub.c:4007
 vma_lock_alloc kernel/fork.c:441 [inline]
 vm_area_dup kernel/fork.c:494 [inline]
 dup_mmap kernel/fork.c:697 [inline]
 dup_mm kernel/fork.c:1688 [inline]
 copy_mm+0xc85/0x2240 kernel/fork.c:1737
 copy_process+0x1872/0x3db0 kernel/fork.c:2390
 kernel_clone+0x223/0x870 kernel/fork.c:2797
 __do_sys_clone kernel/fork.c:2940 [inline]
 __se_sys_clone kernel/fork.c:2924 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2924
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
page last free pid 4969 tgid 4969 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1088 [inline]
 free_unref_folios+0xf07/0x1990 mm/page_alloc.c:2614
 folios_put_refs+0x93a/0xa60 mm/swap.c:1024
 free_pages_and_swap_cache+0x5c8/0x690 mm/swap_state.c:332
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:465
 exit_mmap+0x4e6/0xd10 mm/mmap.c:3354
 __mmput+0x115/0x3c0 kernel/fork.c:1346
 exit_mm+0x220/0x310 kernel/exit.c:565
 do_exit+0x9aa/0x27e0 kernel/exit.c:861
 do_group_exit+0x207/0x2c0 kernel/exit.c:1023
 __do_sys_exit_group kernel/exit.c:1034 [inline]
 __se_sys_exit_group kernel/exit.c:1032 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1032
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Memory state around the buggy address:
 ffff88801a6e4f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88801a6e4f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88801a6e5000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff88801a6e5080: fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb
 ffff88801a6e5100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc
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