loop0: detected capacity change from 0 to 131072
F2FS-fs (loop0): f2fs_recover_fsync_data: recovery fsync data, check_only: 0
F2FS-fs (loop0): Mounted with checkpoint version = 1b41e955
F2FS-fs (loop0): access invalid blkaddr:16711680
CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 __f2fs_is_valid_blkaddr+0xe52/0x14f0 fs/f2fs/checkpoint.c:213
 f2fs_do_zero_range fs/f2fs/file.c:1647 [inline]
 f2fs_zero_range+0xef0/0x1580 fs/f2fs/file.c:1737
 f2fs_fallocate+0x583/0x990 fs/f2fs/file.c:2030
 vfs_fallocate+0x669/0x7e0 fs/open.c:342
 ksys_fallocate fs/open.c:366 [inline]
 __do_sys_fallocate fs/open.c:371 [inline]
 __se_sys_fallocate fs/open.c:369 [inline]
 __x64_sys_fallocate+0xc0/0x110 fs/open.c:369
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fae7e98f6c9
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
RSP: 002b:00007fae7f861038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fae7ebe5fa0 RCX: 00007fae7e98f6c9
RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000012
RBP: 00007fae7ea11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000008000c62 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fae7ebe6038 R14: 00007fae7ebe5fa0 R15: 00007ffc6a701998
 </TASK>
F2FS-fs (loop0): __update_extent_tree_range: extent len is zero, type: 0, extent [0, 0, 0], age [0, 0]
------------[ cut here ]------------
kernel BUG at fs/f2fs/extent_cache.c:678!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__update_extent_tree_range+0x13bc/0x1500 fs/f2fs/extent_cache.c:678
Code: 48 c7 c2 60 7a b3 8b 48 c7 c1 bf e9 8b 8d 44 8b 44 24 0c 4c 8b 4c 24 30 41 ff 37 41 56 6a 00 53 e8 39 09 ef ff 48 83 c4 20 90 <0f> 0b f3 0f 1e fa 65 44 8b 3d ea b3 50 0e bf 07 00 00 00 44 89 fe
RSP: 0018:ffffc9000d427920 EFLAGS: 00010282
RAX: 2845271af05bbc00 RBX: 0000000000000000 RCX: 2845271af05bbc00
RDX: ffffc9000e3d2000 RSI: 0000000000009269 RDI: 000000000000926a
RBP: ffffc9000d427af0 R08: ffffc9000d4274e7 R09: 1ffff92001a84e9c
R10: dffffc0000000000 R11: fffff52001a84e9d R12: 1ffff92001a84f48
R13: ffff888040fb9ae8 R14: 0000000000000000 R15: ffffc9000d427b18
FS:  00007fae7f8616c0(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae7f83ffc8 CR3: 0000000041163000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 f2fs_update_read_extent_cache_range+0x192/0x3e0 fs/f2fs/extent_cache.c:1085
 f2fs_do_zero_range fs/f2fs/file.c:1657 [inline]
 f2fs_zero_range+0x10c1/0x1580 fs/f2fs/file.c:1737
 f2fs_fallocate+0x583/0x990 fs/f2fs/file.c:2030
 vfs_fallocate+0x669/0x7e0 fs/open.c:342
 ksys_fallocate fs/open.c:366 [inline]
 __do_sys_fallocate fs/open.c:371 [inline]
 __se_sys_fallocate fs/open.c:369 [inline]
 __x64_sys_fallocate+0xc0/0x110 fs/open.c:369
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fae7e98f6c9
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
RSP: 002b:00007fae7f861038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fae7ebe5fa0 RCX: 00007fae7e98f6c9
RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000000012
RBP: 00007fae7ea11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000008000c62 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fae7ebe6038 R14: 00007fae7ebe5fa0 R15: 00007ffc6a701998
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__update_extent_tree_range+0x13bc/0x1500 fs/f2fs/extent_cache.c:678
Code: 48 c7 c2 60 7a b3 8b 48 c7 c1 bf e9 8b 8d 44 8b 44 24 0c 4c 8b 4c 24 30 41 ff 37 41 56 6a 00 53 e8 39 09 ef ff 48 83 c4 20 90 <0f> 0b f3 0f 1e fa 65 44 8b 3d ea b3 50 0e bf 07 00 00 00 44 89 fe
RSP: 0018:ffffc9000d427920 EFLAGS: 00010282
RAX: 2845271af05bbc00 RBX: 0000000000000000 RCX: 2845271af05bbc00
RDX: ffffc9000e3d2000 RSI: 0000000000009269 RDI: 000000000000926a
RBP: ffffc9000d427af0 R08: ffffc9000d4274e7 R09: 1ffff92001a84e9c
R10: dffffc0000000000 R11: fffff52001a84e9d R12: 1ffff92001a84f48
R13: ffff888040fb9ae8 R14: 0000000000000000 R15: ffffc9000d427b18
FS:  00007fae7f8616c0(0000) GS:ffff88808d732000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae7f81dfb8 CR3: 0000000041163000 CR4: 0000000000352ef0