program:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000000)='./file1\x00', 0x446, &(0x7f0000000080)={[{@stripe={'stripe', 0x3d, 0x2}}, {@journal_dev={'journal_dev', 0x3d, 0x1045}}, {@oldalloc}, {@noquota}, {@minixdf}, {@barrier_val={'barrier', 0x3d, 0x2}}, {@delalloc}, {@nojournal_checksum}, {@orlov}, {@user_xattr}, {@quota}, {@delalloc}]}, 0x1, 0x553, &(0x7f0000001080)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0)
pwrite64(r0, &(0x7f0000000140)='2', 0x1, 0x8000c61)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x10)
mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x27ffff7, 0x4012011, r1, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x101042, 0x35)
pwrite64(r2, &(0x7f0000000140)='2', 0xfdef, 0xfecc)
setxattr$trusted_overlay_upper(&(0x7f0000000000)='./file1\x00', &(0x7f0000000500), &(0x7f0000000180)=ANY=[@ANYRESHEX], 0x841, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x42, 0x0)
write$FUSE_WRITE(r3, &(0x7f00000000c0)={0x18}, 0xfffffdef)
[ 75.051701][ T4703] Bluetooth: hci0: command tx timeout
[ 75.093973][ T5356] loop0: detected capacity change from 0 to 1024
[ 75.137592][ T5356] =======================================================
[ 75.137592][ T5356] WARNING: The mand mount option has been deprecated and
[ 75.137592][ T5356] and is ignored by this kernel. Remove the mand
[ 75.137592][ T5356] option from the mount to silence this warning.
[ 75.137592][ T5356] =======================================================
[ 75.191434][ T5356] EXT4-fs: Ignoring removed oldalloc option
[ 75.194028][ T5356] EXT4-fs: Ignoring removed orlov option
[ 75.204105][ T5356] EXT4-fs (loop0): stripe (2) is not aligned with cluster size (16), stripe is disabled
[ 75.249653][ T5356] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[ 75.335209][ T5356] ==================================================================
[ 75.338624][ T5356] BUG: KASAN: use-after-free in ext4_find_extent+0xae6/0xcc0
[ 75.341966][ T5356] Read of size 4 at addr ffff888053460a70 by task syz.0.0/5356
[ 75.345245][ T5356]
[ 75.346268][ T5356] CPU: 0 UID: 0 PID: 5356 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 75.346283][ T5356] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 75.346291][ T5356] Call Trace:
[ 75.346298][ T5356]
[ 75.346305][ T5356] dump_stack_lvl+0x189/0x250
[ 75.346324][ T5356] ? __virt_addr_valid+0x1c8/0x5c0
[ 75.346338][ T5356] ? rcu_is_watching+0x15/0xb0
[ 75.346350][ T5356] ? __pfx_dump_stack_lvl+0x10/0x10
[ 75.346363][ T5356] ? rcu_is_watching+0x15/0xb0
[ 75.346373][ T5356] ? lock_release+0x4b/0x3e0
[ 75.346389][ T5356] ? _raw_spin_lock_irqsave+0xb3/0xf0
[ 75.346451][ T5356] ? __virt_addr_valid+0x1c8/0x5c0
[ 75.346465][ T5356] ? __virt_addr_valid+0x4a5/0x5c0
[ 75.346480][ T5356] print_report+0xca/0x240
[ 75.346492][ T5356] ? ext4_find_extent+0xae6/0xcc0
[ 75.346507][ T5356] kasan_report+0x118/0x150
[ 75.346522][ T5356] ? ext4_find_extent+0xae6/0xcc0
[ 75.346543][ T5356] ext4_find_extent+0xae6/0xcc0
[ 75.346562][ T5356] ext4_ext_map_blocks+0x288/0x6ac0
[ 75.346584][ T5356] ? __lock_acquire+0xab9/0xd20
[ 75.346601][ T5356] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 75.346618][ T5356] ? ext4_es_lookup_extent+0x622/0xa70
[ 75.346632][ T5356] ext4_map_blocks+0x860/0x1740
[ 75.346647][ T5356] ? __pfx_ext4_map_blocks+0x10/0x10
[ 75.346657][ T5356] ? __pfx_hlock_conflict+0x10/0x10
[ 75.346667][ T5356] ? __lock_acquire+0xab9/0xd20
[ 75.346677][ T5356] ? check_path+0x21/0x40
[ 75.346689][ T5356] _ext4_get_block+0x200/0x4c0
[ 75.346699][ T5356] ? __pfx__ext4_get_block+0x10/0x10
[ 75.346713][ T5356] ext4_get_block_unwritten+0x2e/0x100
[ 75.346725][ T5356] ext4_block_write_begin+0x993/0x1710
[ 75.346740][ T5356] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 75.346751][ T5356] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 75.346764][ T5356] ? folio_mapping+0x16f/0x240
[ 75.346774][ T5356] ? ext4_inode_journal_mode+0x18c/0x480
[ 75.346787][ T5356] ext4_write_begin+0xc04/0x19a0
[ 75.346807][ T5356] ? __pfx_ext4_write_begin+0x10/0x10
[ 75.346826][ T5356] ext4_da_write_begin+0x445/0xda0
[ 75.346838][ T5356] ? __pfx___might_resched+0x10/0x10
[ 75.346848][ T5356] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 75.346860][ T5356] generic_perform_write+0x2c2/0x900
[ 75.346873][ T5356] ? __pfx_generic_perform_write+0x10/0x10
[ 75.346884][ T5356] ? file_modified_flags+0x4bb/0x560
[ 75.346895][ T5356] ? ext4_write_checks+0x24b/0x2c0
[ 75.346908][ T5356] ext4_buffered_write_iter+0xce/0x3a0
[ 75.346922][ T5356] ext4_file_write_iter+0x298/0x1bc0
[ 75.346940][ T5356] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 75.346955][ T5356] vfs_write+0x5c9/0xb30
[ 75.346969][ T5356] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 75.346981][ T5356] ? __pfx_vfs_write+0x10/0x10
[ 75.346994][ T5356] ? __fget_files+0x2a/0x420
[ 75.347008][ T5356] ksys_write+0x145/0x250
[ 75.347021][ T5356] ? __pfx_ksys_write+0x10/0x10
[ 75.347031][ T5356] ? rcu_is_watching+0x15/0xb0
[ 75.347042][ T5356] ? do_syscall_64+0xbe/0x3b0
[ 75.347054][ T5356] do_syscall_64+0xfa/0x3b0
[ 75.347065][ T5356] ? lockdep_hardirqs_on+0x9c/0x150
[ 75.347083][ T5356] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.347094][ T5356] ? clear_bhb_loop+0x60/0xb0
[ 75.347106][ T5356] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.347115][ T5356] RIP: 0033:0x7ffac398eba9
[ 75.347122][ T5356] 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
[ 75.347129][ T5356] RSP: 002b:00007ffac4870038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 75.347141][ T5356] RAX: ffffffffffffffda RBX: 00007ffac3bd5fa0 RCX: 00007ffac398eba9
[ 75.347148][ T5356] RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 0000000000000007
[ 75.347154][ T5356] RBP: 00007ffac3a11e19 R08: 0000000000000000 R09: 0000000000000000
[ 75.347159][ T5356] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 75.347165][ T5356] R13: 00007ffac3bd6038 R14: 00007ffac3bd5fa0 R15: 00007ffc6388dd38
[ 75.347174][ T5356]
[ 75.347177][ T5356]
[ 75.513799][ T5356] The buggy address belongs to the physical page:
[ 75.516518][ T5356] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x53460
[ 75.520299][ T5356] flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
[ 75.523482][ T5356] raw: 04fff00000000000 ffffea00014d1848 ffffea00014d17c8 0000000000000000
[ 75.527196][ T5356] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 75.530923][ T5356] page dumped because: kasan: bad access detected
[ 75.533608][ T5356] page_owner info is not present (never set?)
[ 75.536128][ T5356]
[ 75.537135][ T5356] Memory state around the buggy address:
[ 75.539515][ T5356] ffff888053460900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 75.542994][ T5356] ffff888053460980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 75.546312][ T5356] >ffff888053460a00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 75.549649][ T5356] ^
[ 75.552852][ T5356] ffff888053460a80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 75.556242][ T5356] ffff888053460b00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 75.559612][ T5356] ==================================================================
[ 75.579119][ T5356] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 75.582298][ T5356] CPU: 0 UID: 0 PID: 5356 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 75.586178][ T5356] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 75.590669][ T5356] Call Trace:
[ 75.592153][ T5356]
[ 75.593372][ T5356] dump_stack_lvl+0x99/0x250
[ 75.595354][ T5356] ? __asan_memcpy+0x40/0x70
[ 75.597275][ T5356] ? __pfx_dump_stack_lvl+0x10/0x10
[ 75.599321][ T5356] ? __pfx__printk+0x10/0x10
[ 75.601257][ T5356] vpanic+0x281/0x750
[ 75.602817][ T5356] ? preempt_schedule+0xae/0xc0
[ 75.604883][ T5356] ? __pfx_vpanic+0x10/0x10
[ 75.606827][ T5356] ? preempt_schedule_common+0x83/0xd0
[ 75.609140][ T5356] ? preempt_schedule+0xae/0xc0
[ 75.611077][ T5356] ? __pfx_preempt_schedule+0x10/0x10
[ 75.613379][ T5356] panic+0xb9/0xc0
[ 75.615036][ T5356] ? __pfx_panic+0x10/0x10
[ 75.616921][ T5356] ? _raw_spin_unlock_irqrestore+0xfd/0x110
[ 75.619415][ T5356] ? is_module_address+0x17/0xf0
[ 75.621473][ T5356] ? ext4_find_extent+0xae6/0xcc0
[ 75.623617][ T5356] check_panic_on_warn+0x89/0xb0
[ 75.625742][ T5356] ? ext4_find_extent+0xae6/0xcc0
[ 75.627872][ T5356] end_report+0x78/0x160
[ 75.629618][ T5356] kasan_report+0x129/0x150
[ 75.631567][ T5356] ? ext4_find_extent+0xae6/0xcc0
[ 75.633708][ T5356] ext4_find_extent+0xae6/0xcc0
[ 75.635794][ T5356] ext4_ext_map_blocks+0x288/0x6ac0
[ 75.637911][ T5356] ? __lock_acquire+0xab9/0xd20
[ 75.639932][ T5356] ? __pfx_ext4_ext_map_blocks+0x10/0x10
[ 75.642223][ T5356] ? ext4_es_lookup_extent+0x622/0xa70
[ 75.644478][ T5356] ext4_map_blocks+0x860/0x1740
[ 75.646593][ T5356] ? __pfx_ext4_map_blocks+0x10/0x10
[ 75.648764][ T5356] ? __pfx_hlock_conflict+0x10/0x10
[ 75.650952][ T5356] ? __lock_acquire+0xab9/0xd20
[ 75.653047][ T5356] ? check_path+0x21/0x40
[ 75.656857][ T5356] _ext4_get_block+0x200/0x4c0
[ 75.658866][ T5356] ? __pfx__ext4_get_block+0x10/0x10
[ 75.661131][ T5356] ext4_get_block_unwritten+0x2e/0x100
[ 75.663543][ T5356] ext4_block_write_begin+0x993/0x1710
[ 75.665933][ T5356] ? __pfx_ext4_get_block_unwritten+0x10/0x10
[ 75.668518][ T5356] ? __pfx_ext4_block_write_begin+0x10/0x10
[ 75.671182][ T5356] ? folio_mapping+0x16f/0x240
[ 75.673286][ T5356] ? ext4_inode_journal_mode+0x18c/0x480
[ 75.675717][ T5356] ext4_write_begin+0xc04/0x19a0
[ 75.677782][ T5356] ? __pfx_ext4_write_begin+0x10/0x10
[ 75.680051][ T5356] ext4_da_write_begin+0x445/0xda0
[ 75.682185][ T5356] ? __pfx___might_resched+0x10/0x10
[ 75.684475][ T5356] ? __pfx_ext4_da_write_begin+0x10/0x10
[ 75.686902][ T5356] generic_perform_write+0x2c2/0x900
[ 75.689151][ T5356] ? __pfx_generic_perform_write+0x10/0x10
[ 75.691706][ T5356] ? file_modified_flags+0x4bb/0x560
[ 75.694027][ T5356] ? ext4_write_checks+0x24b/0x2c0
[ 75.696244][ T5356] ext4_buffered_write_iter+0xce/0x3a0
[ 75.698564][ T5356] ext4_file_write_iter+0x298/0x1bc0
[ 75.700773][ T5356] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 75.703001][ T5356] vfs_write+0x5c9/0xb30
[ 75.704800][ T5356] ? __pfx_ext4_file_write_iter+0x10/0x10
[ 75.707150][ T5356] ? __pfx_vfs_write+0x10/0x10
[ 75.709231][ T5356] ? __fget_files+0x2a/0x420
[ 75.711197][ T5356] ksys_write+0x145/0x250
[ 75.712975][ T5356] ? __pfx_ksys_write+0x10/0x10
[ 75.715178][ T5356] ? rcu_is_watching+0x15/0xb0
[ 75.717407][ T5356] ? do_syscall_64+0xbe/0x3b0
[ 75.719515][ T5356] do_syscall_64+0xfa/0x3b0
[ 75.721569][ T5356] ? lockdep_hardirqs_on+0x9c/0x150
[ 75.723770][ T5356] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.726350][ T5356] ? clear_bhb_loop+0x60/0xb0
[ 75.728385][ T5356] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.730907][ T5356] RIP: 0033:0x7ffac398eba9
[ 75.732722][ T5356] 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
[ 75.740682][ T5356] RSP: 002b:00007ffac4870038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 75.744258][ T5356] RAX: ffffffffffffffda RBX: 00007ffac3bd5fa0 RCX: 00007ffac398eba9
[ 75.747730][ T5356] RDX: 00000000fffffdef RSI: 00002000000000c0 RDI: 0000000000000007
[ 75.751074][ T5356] RBP: 00007ffac3a11e19 R08: 0000000000000000 R09: 0000000000000000
[ 75.754494][ T5356] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 75.757894][ T5356] R13: 00007ffac3bd6038 R14: 00007ffac3bd5fa0 R15: 00007ffc6388dd38
[ 75.761256][ T5356]
[ 75.762887][ T5356] Kernel Offset: disabled
[ 75.764786][ T5356] Rebooting in 86400 seconds..