program:
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syz_mount_image$fuse(0x0, &(0x7f0000000580)='./bus\x00', 0x4080, 0x0, 0x1, 0x0, 0x0)
lsetxattr$trusted_overlay_redirect(&(0x7f0000000040)='./file0/file1\x00', &(0x7f0000000100), &(0x7f0000000140)='./file0/file1\x00', 0xe, 0x1)
mount$overlay(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000b80), 0x0, &(0x7f0000000180)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, '.'}}, {@upperdir={'upperdir', 0x3d, './file0'}}]})
unlinkat(0xffffffffffffff9c, &(0x7f00000001c0)='./file0/file1\x00', 0x200)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x101041, 0x15)
pwrite64(r0, &(0x7f0000000140)='2', 0xfdef, 0xe7c)
r1 = openat(0xffffffffffffff9c, &(0x7f0000005140)='./file0\x00', 0x0, 0x0)
syz_usb_connect(0x0, 0x39, 0x0, 0x0)
ioctl$BTRFS_IOC_BALANCE_V2(r1, 0xc4009420, &(0x7f0000000300)={0x5, 0x0, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x100}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x100}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8000000000000}})
[ 94.101667][ T4642] Bluetooth: hci0: command tx timeout
[ 94.432335][ T5320] loop0: detected capacity change from 0 to 32768
[ 94.443121][ T5320] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5320)
[ 94.473580][ T5320] BTRFS info (device loop0): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[ 94.478822][ T5320] BTRFS info (device loop0): using crc32c checksum algorithm
[ 94.752007][ T5320] BTRFS info (device loop0): enabling ssd optimizations
[ 94.775383][ T5320] BTRFS info (device loop0): turning on async discard
[ 94.778756][ T5320] BTRFS info (device loop0): enabling free space tree
[ 95.393160][ T5337] BTRFS info (device loop0): balance: start -dconvert=raid0 -mconvert=raid0
[ 95.428411][ T12] ------------[ cut here ]------------
[ 95.430976][ T12] btrfs_abort_should_print_stack(__error)
[ 95.430987][ T12] WARNING: fs/btrfs/extent-tree.c:3429 at __btrfs_free_extent+0x1fd1/0x39c0, CPU#0: kworker/u4:0/12
[ 95.438687][ T12] Modules linked in:
[ 95.441270][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u4:0 Not tainted syzkaller #0 PREEMPT(full)
[ 95.445286][ T12] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 95.450383][ T12] Workqueue: events_unbound btrfs_async_reclaim_metadata_space
[ 95.454020][ T12] RIP: 0010:__btrfs_free_extent+0x1fd1/0x39c0
[ 95.456729][ T12] Code: 00 b6 fd 45 85 f6 0f 85 e0 05 00 00 e8 18 fb b5 fd e9 47 09 00 00 e8 0e fb b5 fd eb 10 e8 07 fb b5 fd eb 09 e8 00 fb b5 fd 90 <0f> 0b 90 4c 8b 7c 24 10 44 89 e1 f7 d9 e9 93 e7 ff ff e8 58 a0 cc
[ 95.465576][ T12] RSP: 0018:ffffc9000025f260 EFLAGS: 00010293
[ 95.468545][ T12] RAX: ffffffff841139c0 RBX: ffff88805256c001 RCX: ffff88801b704b00
[ 95.472500][ T12] RDX: 0000000000000000 RSI: ffffffff8f3c3ee0 RDI: 00000000ffffffe4
[ 95.476437][ T12] RBP: ffffc9000025f410 R08: ffff88801b704b00 R09: 0000000000000003
[ 95.480256][ T12] R10: 00000000fffffffb R11: 0000000000000000 R12: 00000000ffffffe4
[ 95.483567][ T12] R13: ffff88801f99e8d0 R14: dffffc0000000000 R15: 00000000ffffffe4
[ 95.486454][ T12] FS: 0000000000000000(0000) GS:ffff88808c30a000(0000) knlGS:0000000000000000
[ 95.490024][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 95.492767][ T12] CR2: 00007f833406a120 CR3: 00000000124d7000 CR4: 0000000000352ef0
[ 95.496499][ T12] Call Trace:
[ 95.498292][ T12]
[ 95.499786][ T12] ? __pfx___btrfs_free_extent+0x10/0x10
[ 95.502626][ T12] ? do_raw_spin_unlock+0x4d/0x200
[ 95.505258][ T12] __btrfs_run_delayed_refs+0x166c/0x43b0
[ 95.507839][ T12] ? kasan_addr_to_slab+0x60/0x70
[ 95.510308][ T12] ? kmem_cache_alloc_noprof+0x2a4/0x5f0
[ 95.512945][ T12] ? __pfx___btrfs_run_delayed_refs+0x10/0x10
[ 95.516518][ T12] ? join_transaction+0x6b2/0xd40
[ 95.518833][ T12] ? join_transaction+0x6b2/0xd40
[ 95.520758][ T12] ? do_raw_spin_unlock+0x4d/0x200
[ 95.522962][ T12] ? join_transaction+0x6b2/0xd40
[ 95.525332][ T12] ? btrfs_record_root_in_trans+0x90/0x180
[ 95.527867][ T12] ? start_transaction+0x434/0x17d0
[ 95.530079][ T12] btrfs_run_delayed_refs+0xdc/0x2a0
[ 95.532237][ T12] flush_space+0x56d/0xde0
[ 95.534292][ T12] ? do_raw_spin_lock+0x12b/0x2f0
[ 95.536568][ T12] ? __pfx_flush_space+0x10/0x10
[ 95.538680][ T12] ? do_raw_spin_unlock+0x4d/0x200
[ 95.540797][ T12] do_async_reclaim_metadata_space+0x3e8/0x940
[ 95.543363][ T12] ? process_scheduled_works+0x97a/0x1630
[ 95.545963][ T12] btrfs_async_reclaim_metadata_space+0x89/0xe0
[ 95.548725][ T12] process_scheduled_works+0xc3d/0x1630
[ 95.551206][ T12] ? __pfx_process_scheduled_works+0x10/0x10
[ 95.553818][ T12] ? assign_work+0x3cf/0x5d0
[ 95.555934][ T12] worker_thread+0xa47/0xfb0
[ 95.557883][ T12] kthread+0x38b/0x480
[ 95.559452][ T12] ? __pfx_worker_thread+0x10/0x10
[ 95.561486][ T12] ? __pfx_kthread+0x10/0x10
[ 95.563477][ T12] ret_from_fork+0x514/0xb70
[ 95.565576][ T12] ? __pfx_ret_from_fork+0x10/0x10
[ 95.567779][ T12] ? __switch_to+0xc89/0x1420
[ 95.569743][ T12] ? __pfx_kthread+0x10/0x10
[ 95.571685][ T12] ret_from_fork_asm+0x1a/0x30
[ 95.573777][ T12]
[ 95.575230][ T12] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 95.578302][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u4:0 Not tainted syzkaller #0 PREEMPT(full)
[ 95.582180][ T12] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 95.586507][ T12] Workqueue: events_unbound btrfs_async_reclaim_metadata_space
[ 95.589732][ T12] Call Trace:
[ 95.591127][ T12]
[ 95.592382][ T12] vpanic+0x56d/0xa60
[ 95.594113][ T12] ? __pfx__printk+0x10/0x10
[ 95.596089][ T12] ? __pfx_vpanic+0x10/0x10
[ 95.597970][ T12] ? is_bpf_text_address+0x292/0x2b0
[ 95.600675][ T12] ? is_bpf_text_address+0x26/0x2b0
[ 95.603445][ T12] panic+0xc5/0xd0
[ 95.605498][ T12] ? __pfx_panic+0x10/0x10
[ 95.607356][ T12] ? ret_from_fork_asm+0x1a/0x30
[ 95.609415][ T12] __warn+0x315/0x4c0
[ 95.611227][ T12] ? __btrfs_free_extent+0x1fd1/0x39c0
[ 95.613704][ T12] ? __btrfs_free_extent+0x1fd1/0x39c0
[ 95.615986][ T12] __report_bug+0x276/0x570
[ 95.617912][ T12] ? __btrfs_free_extent+0x1fd1/0x39c0
[ 95.620199][ T12] ? __pfx___report_bug+0x10/0x10
[ 95.622191][ T12] ? __btrfs_free_extent+0x1fd1/0x39c0
[ 95.624411][ T12] report_bug+0x16b/0x220
[ 95.626193][ T12] ? __btrfs_free_extent+0x1fd1/0x39c0
[ 95.628435][ T12] ? __btrfs_free_extent+0x1fd3/0x39c0
[ 95.630515][ T12] handle_bug+0x9c/0x200
[ 95.632195][ T12] exc_invalid_op+0x1a/0x50
[ 95.634541][ T12] asm_exc_invalid_op+0x1a/0x20
[ 95.637127][ T12] RIP: 0010:__btrfs_free_extent+0x1fd1/0x39c0
[ 95.640199][ T12] Code: 00 b6 fd 45 85 f6 0f 85 e0 05 00 00 e8 18 fb b5 fd e9 47 09 00 00 e8 0e fb b5 fd eb 10 e8 07 fb b5 fd eb 09 e8 00 fb b5 fd 90 <0f> 0b 90 4c 8b 7c 24 10 44 89 e1 f7 d9 e9 93 e7 ff ff e8 58 a0 cc
[ 95.648001][ T12] RSP: 0018:ffffc9000025f260 EFLAGS: 00010293
[ 95.650347][ T12] RAX: ffffffff841139c0 RBX: ffff88805256c001 RCX: ffff88801b704b00
[ 95.653648][ T12] RDX: 0000000000000000 RSI: ffffffff8f3c3ee0 RDI: 00000000ffffffe4
[ 95.656997][ T12] RBP: ffffc9000025f410 R08: ffff88801b704b00 R09: 0000000000000003
[ 95.660350][ T12] R10: 00000000fffffffb R11: 0000000000000000 R12: 00000000ffffffe4
[ 95.663551][ T12] R13: ffff88801f99e8d0 R14: dffffc0000000000 R15: 00000000ffffffe4
[ 95.666892][ T12] ? __btrfs_free_extent+0x1fd0/0x39c0
[ 95.669201][ T12] ? __pfx___btrfs_free_extent+0x10/0x10
[ 95.671302][ T12] ? do_raw_spin_unlock+0x4d/0x200
[ 95.673131][ T12] __btrfs_run_delayed_refs+0x166c/0x43b0
[ 95.675146][ T12] ? kasan_addr_to_slab+0x60/0x70
[ 95.676840][ T12] ? kmem_cache_alloc_noprof+0x2a4/0x5f0
[ 95.678776][ T12] ? __pfx___btrfs_run_delayed_refs+0x10/0x10
[ 95.681219][ T12] ? join_transaction+0x6b2/0xd40
[ 95.683237][ T12] ? join_transaction+0x6b2/0xd40
[ 95.685382][ T12] ? do_raw_spin_unlock+0x4d/0x200
[ 95.687467][ T12] ? join_transaction+0x6b2/0xd40
[ 95.689658][ T12] ? btrfs_record_root_in_trans+0x90/0x180
[ 95.692239][ T12] ? start_transaction+0x434/0x17d0
[ 95.694578][ T12] btrfs_run_delayed_refs+0xdc/0x2a0
[ 95.696812][ T12] flush_space+0x56d/0xde0
[ 95.698810][ T12] ? do_raw_spin_lock+0x12b/0x2f0
[ 95.701193][ T12] ? __pfx_flush_space+0x10/0x10
[ 95.703407][ T12] ? do_raw_spin_unlock+0x4d/0x200
[ 95.705730][ T12] do_async_reclaim_metadata_space+0x3e8/0x940
[ 95.708186][ T12] ? process_scheduled_works+0x97a/0x1630
[ 95.710276][ T12] btrfs_async_reclaim_metadata_space+0x89/0xe0
[ 95.712626][ T12] process_scheduled_works+0xc3d/0x1630
[ 95.714851][ T12] ? __pfx_process_scheduled_works+0x10/0x10
[ 95.717085][ T12] ? assign_work+0x3cf/0x5d0
[ 95.719002][ T12] worker_thread+0xa47/0xfb0
[ 95.720988][ T12] kthread+0x38b/0x480
[ 95.722695][ T12] ? __pfx_worker_thread+0x10/0x10
[ 95.724932][ T12] ? __pfx_kthread+0x10/0x10
[ 95.727104][ T12] ret_from_fork+0x514/0xb70
[ 95.729028][ T12] ? __pfx_ret_from_fork+0x10/0x10
[ 95.731225][ T12] ? __switch_to+0xc89/0x1420
[ 95.733271][ T12] ? __pfx_kthread+0x10/0x10
[ 95.734964][ T12] ret_from_fork_asm+0x1a/0x30
[ 95.736915][ T12]
[ 95.738546][ T12] Kernel Offset: disabled
[ 95.740177][ T12] Rebooting in 86400 seconds..