------------[ cut here ]------------
within_last_ext && elen > ((loff_t)offset + 1) << inode->i_blkbits
WARNING: fs/udf/inode.c:683 at udf_extend_file fs/udf/inode.c:682 [inline], CPU#0: syz.7.1396/12230
WARNING: fs/udf/inode.c:683 at udf_setsize+0xde9/0x10b0 fs/udf/inode.c:1298, CPU#0: syz.7.1396/12230
Modules linked in:
CPU: 0 UID: 0 PID: 12230 Comm: syz.7.1396 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:udf_extend_file fs/udf/inode.c:682 [inline]
RIP: 0010:udf_setsize+0xde9/0x10b0 fs/udf/inode.c:1298
Code: 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 a6 3d b9 fd cc e8 75 b4 6e fe 45 89 f4 e9 2a fe ff ff e8 68 b4 6e fe 90 <0f> 0b 90 e9 90 f7 ff ff 44 89 f1 80 e1 07 38 c1 0f 8c ab f2 ff ff
RSP: 0018:ffffc90004757aa0 EFLAGS: 00010287
RAX: ffffffff83570378 RBX: ffff88806b131b48 RCX: 0000000000080000
RDX: ffffc900039ab000 RSI: 00000000000003e1 RDI: 00000000000003e2
RBP: ffffc90004757c00 R08: ffff88806b131b0b R09: 1ffff1100d626361
R10: dffffc0000000000 R11: ffffed100d626362 R12: 0000000000000001
R13: 1ffff920008eaf68 R14: 0000000000000e00 R15: 0000000000001000
FS:  00007f39351716c0(0000) GS:ffff8881252a0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30a07ff8 CR3: 000000006619e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 udf_setattr+0x3a1/0x5a0 fs/udf/file.c:245
 notify_change+0xc1a/0xf40 fs/attr.c:556
 do_truncate+0x1c2/0x250 fs/open.c:68
 do_ftruncate+0x490/0x540 fs/open.c:194
 ksys_ftruncate fs/open.c:206 [inline]
 __do_sys_ftruncate fs/open.c:211 [inline]
 __se_sys_ftruncate fs/open.c:209 [inline]
 __x64_sys_ftruncate+0x8f/0xe0 fs/open.c:209
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f393439ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3935171028 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f3934615fa0 RCX: 00007f393439ce59
RDX: 0000000000000000 RSI: 0000000000000c00 RDI: 000000000000000c
RBP: 00007f3934432d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3934616038 R14: 00007f3934615fa0 R15: 00007ffc55a39688
 </TASK>