program:
syz_mount_image$ext4(&(0x7f0000000180)='ext4\x00', &(0x7f00000003c0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x800700, &(0x7f0000000880), 0x3, 0x467, &(0x7f0000002280)="$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")
chdir(&(0x7f0000000140)='./file0\x00')
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000180)='net_prio.prioidx\x00', 0x275a, 0x0)
mkdir(&(0x7f00000002c0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x5)
creat(&(0x7f0000000580)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)
mknod$loop(&(0x7f0000000000)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0, 0x1)
symlink(&(0x7f0000000dc0)='./file0\x00', &(0x7f0000000cc0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000005c0)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x0)

[   59.297941][ T5327] loop0: detected capacity change from 0 to 512
[   59.311538][ T4669] Bluetooth: hci0: command tx timeout
[   59.326024][ T5327] EXT4-fs error (device loop0): ext4_xattr_ibody_find:2240: inode #15: comm syz.0.0: corrupted in-inode xattr: invalid ea_ino
[   59.341443][ T5327] EXT4-fs error (device loop0): ext4_orphan_get:1393: comm syz.0.0: couldn't read orphan inode 15 (err -117)
[   59.352896][ T5327] EXT4-fs (loop0): mounted filesystem 00000007-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
[   59.369341][ T5327] ==================================================================
[   59.372636][ T5327] BUG: KASAN: use-after-free in ext4_insert_dentry+0x36a/0x6d0
[   59.375531][ T5327] Write of size 251 at addr ffff88804c4c1f14 by task syz.0.0/5327
[   59.378186][ T5327] 
[   59.378892][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.12.0-rc6-syzkaller-00169-g906bd684e4b1 #0
[   59.382601][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[   59.386621][ T5327] Call Trace:
[   59.387860][ T5327]  <TASK>
[   59.389002][ T5327]  dump_stack_lvl+0x241/0x360
[   59.390847][ T5327]  ? __pfx_dump_stack_lvl+0x10/0x10
[   59.392709][ T5327]  ? __pfx__printk+0x10/0x10
[   59.394346][ T5327]  ? _printk+0xd5/0x120
[   59.395990][ T5327]  ? __virt_addr_valid+0x183/0x530
[   59.397946][ T5327]  ? __virt_addr_valid+0x183/0x530
[   59.399820][ T5327]  print_report+0x169/0x550
[   59.401273][ T5327]  ? __virt_addr_valid+0x183/0x530
[   59.403220][ T5327]  ? __virt_addr_valid+0x183/0x530
[   59.405137][ T5327]  ? __virt_addr_valid+0x45f/0x530
[   59.406833][ T5327]  ? __phys_addr+0xba/0x170
[   59.408520][ T5327]  ? ext4_insert_dentry+0x36a/0x6d0
[   59.410500][ T5327]  kasan_report+0x143/0x180
[   59.412235][ T5327]  ? ext4_insert_dentry+0x36a/0x6d0
[   59.414262][ T5327]  kasan_check_range+0x282/0x290
[   59.416060][ T5327]  ? ext4_insert_dentry+0x36a/0x6d0
[   59.418001][ T5327]  __asan_memcpy+0x40/0x70
[   59.419705][ T5327]  ext4_insert_dentry+0x36a/0x6d0
[   59.421566][ T5327]  add_dirent_to_buf+0x3d9/0x750
[   59.423274][ T5327]  ? __pfx_add_dirent_to_buf+0x10/0x10
[   59.425345][ T5327]  ? __ext4_handle_dirty_metadata+0x30d/0x820
[   59.427594][ T5327]  make_indexed_dir+0xf98/0x1600
[   59.429392][ T5327]  ? __pfx_make_indexed_dir+0x10/0x10
[   59.431389][ T5327]  ? add_dirent_to_buf+0x398/0x750
[   59.433341][ T5327]  ? __pfx_add_dirent_to_buf+0x10/0x10
[   59.435480][ T5327]  ? __ext4_read_dirblock+0x527/0x890
[   59.437550][ T5327]  ext4_add_entry+0x222a/0x25d0
[   59.439339][ T5327]  ? __pfx_ext4_initxattrs+0x10/0x10
[   59.441354][ T5327]  ? __pfx_security_inode_init_security+0x10/0x10
[   59.443782][ T5327]  ? rcu_is_watching+0x15/0xb0
[   59.445554][ T5327]  ? __brelse+0x59/0xa0
[   59.447114][ T5327]  ? __ext4_new_inode+0x380f/0x4380
[   59.449057][ T5327]  ? __pfx_ext4_add_entry+0x10/0x10
[   59.451121][ T5327]  ext4_add_nondir+0x8d/0x290
[   59.452760][ T5327]  ? ext4_symlink+0x6ce/0xb50
[   59.454497][ T5327]  ext4_symlink+0x920/0xb50
[   59.456033][ T5327]  ? __pfx_ext4_symlink+0x10/0x10
[   59.457867][ T5327]  ? generic_permission+0x1e0/0x550
[   59.459718][ T5327]  ? inode_permission+0xff/0x460
[   59.461573][ T5327]  ? bpf_lsm_inode_symlink+0x9/0x10
[   59.463531][ T5327]  ? security_inode_symlink+0xbe/0x330
[   59.465564][ T5327]  vfs_symlink+0x137/0x2e0
[   59.467226][ T5327]  do_symlinkat+0x222/0x3a0
[   59.468847][ T5327]  ? __pfx_do_symlinkat+0x10/0x10
[   59.470707][ T5327]  ? strncpy_from_user+0x13a/0x260
[   59.473146][ T5327]  ? getname_flags+0x1e3/0x540
[   59.474742][ T5327]  __x64_sys_symlink+0x7a/0x90
[   59.476579][ T5327]  do_syscall_64+0xf3/0x230
[   59.478215][ T5327]  ? clear_bhb_loop+0x35/0x90
[   59.479864][ T5327]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   59.481973][ T5327] RIP: 0033:0x7fb8c857e719
[   59.483532][ T5327] 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 a8 ff ff ff f7 d8 64 89 01 48
[   59.490317][ T5327] RSP: 002b:00007fb8c934f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
[   59.493361][ T5327] RAX: ffffffffffffffda RBX: 00007fb8c8735f80 RCX: 00007fb8c857e719
[   59.496292][ T5327] RDX: 0000000000000000 RSI: 0000000020000cc0 RDI: 0000000020000dc0
[   59.499187][ T5327] RBP: 00007fb8c85f139e R08: 0000000000000000 R09: 0000000000000000
[   59.502151][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   59.505012][ T5327] R13: 0000000000000000 R14: 00007fb8c8735f80 R15: 00007ffc087699b8
[   59.507870][ T5327]  </TASK>
[   59.509115][ T5327] 
[   59.510041][ T5327] The buggy address belongs to the physical page:
[   59.512412][ T5327] page: refcount:3 mapcount:0 mapping:ffff888031cf4d78 index:0x3f pfn:0x4c4c1
[   59.515606][ T5327] memcg:ffff88801b71e000
[   59.517127][ T5327] aops:def_blk_aops ino:700000 dentry name(?):""
[   59.519464][ T5327] flags: 0x4fff08000004214(referenced|dirty|workingset|private|node=1|zone=1|lastcpupid=0x7ff)
[   59.523275][ T5327] raw: 04fff08000004214 0000000000000000 dead000000000122 ffff888031cf4d78
[   59.526528][ T5327] raw: 000000000000003f ffff888031ccb0e8 00000003ffffffff ffff88801b71e000
[   59.529779][ T5327] page dumped because: kasan: bad access detected
[   59.531894][ T5327] page_owner tracks the page as allocated
[   59.534265][ T5327] page last allocated via order 0, migratetype Movable, gfp_mask 0x148c48(GFP_NOFS|__GFP_NOFAIL|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 5327, tgid 5326 (syz.0.0), ts 59369117391, free_ts 0
[   59.541708][ T5327]  post_alloc_hook+0x1f3/0x230
[   59.543465][ T5327]  get_page_from_freelist+0x303f/0x3190
[   59.545521][ T5327]  __alloc_pages_noprof+0x292/0x710
[   59.547231][ T5327]  alloc_pages_mpol_noprof+0x3e8/0x680
[   59.549303][ T5327]  folio_alloc_noprof+0x128/0x180
[   59.551200][ T5327]  filemap_alloc_folio_noprof+0xdf/0x500
[   59.553242][ T5327]  __filemap_get_folio+0x446/0xbd0
[   59.555050][ T5327]  bdev_getblk+0x1d8/0x550
[   59.556743][ T5327]  ext4_getblk+0x303/0x800
[   59.558316][ T5327]  ext4_bread+0x2e/0x180
[   59.559881][ T5327]  ext4_append+0x327/0x5c0
[   59.561515][ T5327]  make_indexed_dir+0x523/0x1600
[   59.563292][ T5327]  ext4_add_entry+0x222a/0x25d0
[   59.565085][ T5327]  ext4_add_nondir+0x8d/0x290
[   59.566837][ T5327]  ext4_symlink+0x920/0xb50
[   59.568469][ T5327]  vfs_symlink+0x137/0x2e0
[   59.570194][ T5327] page_owner free stack trace missing
[   59.572141][ T5327] 
[   59.573023][ T5327] Memory state around the buggy address:
[   59.574876][ T5327]  ffff88804c4c1f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.577564][ T5327]  ffff88804c4c1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   59.580374][ T5327] >ffff88804c4c2000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   59.583112][ T5327]                    ^
[   59.584586][ T5327]  ffff88804c4c2080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   59.587413][ T5327]  ffff88804c4c2100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   59.590303][ T5327] ==================================================================
[   59.605982][ T5327] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[   59.608990][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.12.0-rc6-syzkaller-00169-g906bd684e4b1 #0
[   59.612598][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[   59.616203][ T5327] Call Trace:
[   59.617340][ T5327]  <TASK>
[   59.618381][ T5327]  dump_stack_lvl+0x241/0x360
[   59.620104][ T5327]  ? __pfx_dump_stack_lvl+0x10/0x10
[   59.621792][ T5327]  ? __pfx__printk+0x10/0x10
[   59.623367][ T5327]  ? preempt_schedule+0xe1/0xf0
[   59.625213][ T5327]  ? vscnprintf+0x5d/0x90
[   59.626948][ T5327]  panic+0x349/0x880
[   59.628510][ T5327]  ? check_panic_on_warn+0x21/0xb0
[   59.630451][ T5327]  ? __pfx_panic+0x10/0x10
[   59.632161][ T5327]  ? _raw_spin_unlock_irqrestore+0x130/0x140
[   59.634301][ T5327]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[   59.636485][ T5327]  ? print_report+0x502/0x550
[   59.638308][ T5327]  check_panic_on_warn+0x86/0xb0
[   59.640085][ T5327]  ? ext4_insert_dentry+0x36a/0x6d0
[   59.642103][ T5327]  end_report+0x77/0x160
[   59.643709][ T5327]  kasan_report+0x154/0x180
[   59.645240][ T5327]  ? ext4_insert_dentry+0x36a/0x6d0
[   59.646909][ T5327]  kasan_check_range+0x282/0x290
[   59.648632][ T5327]  ? ext4_insert_dentry+0x36a/0x6d0
[   59.650469][ T5327]  __asan_memcpy+0x40/0x70
[   59.652029][ T5327]  ext4_insert_dentry+0x36a/0x6d0
[   59.653830][ T5327]  add_dirent_to_buf+0x3d9/0x750
[   59.655539][ T5327]  ? __pfx_add_dirent_to_buf+0x10/0x10
[   59.657411][ T5327]  ? __ext4_handle_dirty_metadata+0x30d/0x820
[   59.659523][ T5327]  make_indexed_dir+0xf98/0x1600
[   59.661239][ T5327]  ? __pfx_make_indexed_dir+0x10/0x10
[   59.663214][ T5327]  ? add_dirent_to_buf+0x398/0x750
[   59.665185][ T5327]  ? __pfx_add_dirent_to_buf+0x10/0x10
[   59.667334][ T5327]  ? __ext4_read_dirblock+0x527/0x890
[   59.669642][ T5327]  ext4_add_entry+0x222a/0x25d0
[   59.671271][ T5327]  ? __pfx_ext4_initxattrs+0x10/0x10
[   59.673150][ T5327]  ? __pfx_security_inode_init_security+0x10/0x10
[   59.675426][ T5327]  ? rcu_is_watching+0x15/0xb0
[   59.677214][ T5327]  ? __brelse+0x59/0xa0
[   59.678783][ T5327]  ? __ext4_new_inode+0x380f/0x4380
[   59.680631][ T5327]  ? __pfx_ext4_add_entry+0x10/0x10
[   59.682511][ T5327]  ext4_add_nondir+0x8d/0x290
[   59.684111][ T5327]  ? ext4_symlink+0x6ce/0xb50
[   59.685862][ T5327]  ext4_symlink+0x920/0xb50
[   59.687534][ T5327]  ? __pfx_ext4_symlink+0x10/0x10
[   59.689423][ T5327]  ? generic_permission+0x1e0/0x550
[   59.691205][ T5327]  ? inode_permission+0xff/0x460
[   59.692787][ T5327]  ? bpf_lsm_inode_symlink+0x9/0x10
[   59.694494][ T5327]  ? security_inode_symlink+0xbe/0x330
[   59.696424][ T5327]  vfs_symlink+0x137/0x2e0
[   59.698012][ T5327]  do_symlinkat+0x222/0x3a0
[   59.699562][ T5327]  ? __pfx_do_symlinkat+0x10/0x10
[   59.701378][ T5327]  ? strncpy_from_user+0x13a/0x260
[   59.703285][ T5327]  ? getname_flags+0x1e3/0x540
[   59.705044][ T5327]  __x64_sys_symlink+0x7a/0x90
[   59.706828][ T5327]  do_syscall_64+0xf3/0x230
[   59.708413][ T5327]  ? clear_bhb_loop+0x35/0x90
[   59.710139][ T5327]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   59.712274][ T5327] RIP: 0033:0x7fb8c857e719
[   59.713938][ T5327] 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 a8 ff ff ff f7 d8 64 89 01 48
[   59.720796][ T5327] RSP: 002b:00007fb8c934f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
[   59.723769][ T5327] RAX: ffffffffffffffda RBX: 00007fb8c8735f80 RCX: 00007fb8c857e719
[   59.726802][ T5327] RDX: 0000000000000000 RSI: 0000000020000cc0 RDI: 0000000020000dc0
[   59.729522][ T5327] RBP: 00007fb8c85f139e R08: 0000000000000000 R09: 0000000000000000
[   59.732586][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   59.735490][ T5327] R13: 0000000000000000 R14: 00007fb8c8735f80 R15: 00007ffc087699b8
[   59.738135][ T5327]  </TASK>
[   59.739479][ T5327] Kernel Offset: disabled
[   59.740922][ T5327] Rebooting in 86400 seconds..