------------[ cut here ]------------ WARNING: CPU: 0 PID: 8226 at fs/udf/inode.c:677 udf_extend_file fs/udf/inode.c:676 [inline] WARNING: CPU: 0 PID: 8226 at fs/udf/inode.c:677 udf_setsize+0xd4e/0x1000 fs/udf/inode.c:1293 Modules linked in: CPU: 0 UID: 0 PID: 8226 Comm: syz.4.630 Not tainted 6.15.0-next-20250606-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:udf_extend_file fs/udf/inode.c:676 [inline] RIP: 0010:udf_setsize+0xd4e/0x1000 fs/udf/inode.c:1293 Code: 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 46 64 34 08 cc e8 40 29 8b fe 45 89 f4 e9 49 fe ff ff e8 33 29 8b fe 90 <0f> 0b 90 e9 00 f8 ff ff 44 89 e9 80 e1 07 38 c1 0f 8c 49 f3 ff ff RSP: 0018:ffffc90004177a20 EFLAGS: 00010287 RAX: ffffffff833535ad RBX: ffff888059610e18 RCX: 0000000000080000 RDX: ffffc9000d265000 RSI: 00000000000004ea RDI: 00000000000004eb RBP: ffffc90004177b48 R08: ffff888059610ddb R09: 1ffff1100b2c21bb R10: dffffc0000000000 R11: ffffed100b2c21bc R12: 0000000000000001 R13: 0000000000000c00 R14: 0000000000000e00 R15: 0000000000001000 FS: 00007fbf253556c0(0000) GS:ffff888125c4d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000033ea0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_setattr+0x3a1/0x5a0 fs/udf/file.c:236 notify_change+0xb33/0xe40 fs/attr.c:552 do_truncate+0x1a4/0x220 fs/open.c:68 vfs_truncate+0x493/0x520 fs/open.c:118 do_sys_truncate+0xdb/0x190 fs/open.c:141 __do_sys_truncate fs/open.c:153 [inline] __se_sys_truncate fs/open.c:151 [inline] __x64_sys_truncate+0x5b/0x70 fs/open.c:151 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbf2458e929 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:00007fbf25355038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007fbf247b5fa0 RCX: 00007fbf2458e929 RDX: 0000000000000000 RSI: 0000000000000c00 RDI: 0000200000000080 RBP: 00007fbf24610b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fbf247b5fa0 R15: 00007ffe21ca7268