------------[ cut here ]------------ WARNING: CPU: 0 PID: 19838 at fs/udf/inode.c:1932 __udf_add_aext+0x54c/0x6f0 Modules linked in: CPU: 0 PID: 19838 Comm: syz.9.3398 Not tainted 6.1.129-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__udf_add_aext+0x54c/0x6f0 fs/udf/inode.c:1931 Code: 4c 89 e7 e8 36 3e d9 fe 49 8b 3c 24 4c 89 fe e8 4a 86 f8 fe 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d4 e5 81 fe <0f> 0b e9 ed fb ff ff e8 c8 e5 81 fe 0f 0b e9 5c fc ff ff e8 bc e5 RSP: 0018:ffffc900036077b8 EFLAGS: 00010293 RAX: ffffffff8308b0fc RBX: 1ffff920006c0f75 RCX: ffff88802f329dc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001d0 RBP: 00000000000001d0 R08: ffffffff8308ace2 R09: ffffffff8308ac12 R10: 0000000000000002 R11: ffff88802f329dc0 R12: ffffc90003607ba0 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc90003607ba8 FS: 00007f13df7946c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2b71fa7bac CR3: 0000000062abe000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_setup_indirect_aext+0x727/0xa50 fs/udf/inode.c:1894 udf_add_aext fs/udf/inode.c:1984 [inline] udf_do_extend_file+0x6df/0x1140 fs/udf/inode.c:450 udf_extend_file fs/udf/inode.c:564 [inline] udf_setsize+0xd4b/0x1440 fs/udf/inode.c:1147 udf_setattr+0x36c/0x540 fs/udf/file.c:279 notify_change+0xce3/0xfc0 fs/attr.c:499 do_truncate+0x21c/0x300 fs/open.c:65 do_sys_ftruncate+0x2e2/0x380 fs/open.c:193 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f13de98d169 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:00007f13df794038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007f13deba5fa0 RCX: 00007f13de98d169 RDX: 0000000000000000 RSI: 0000008002007ffb RDI: 0000000000000007 RBP: 00007f13dea0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f13deba5fa0 R15: 00007fffc37c3078