syzbot

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WARNING: CPU: 0 PID: 5624 at fs/udf/truncate.c:204 udf_truncate_extents+0x8a9/0x9d0 fs/udf/truncate.c:204
Modules linked in:
CPU: 0 PID: 5624 Comm: syz-executor116 Not tainted 6.4.0-syzkaller-12491-gc192ac735768 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:udf_truncate_extents+0x8a9/0x9d0 fs/udf/truncate.c:204
Code: 84 d2 74 05 e8 a8 bb ee fe 8b 44 24 28 be 07 00 00 00 48 89 df 89 83 cc fe ff ff e8 21 b9 0a ff e9 a5 fd ff ff e8 57 85 9b fe <0f> 0b e9 1f fe ff ff e8 4b 85 9b fe 0f 0b 48 8b 7c 24 10 48 89 74
RSP: 0018:ffffc90004b2f258 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807070e7d8 RCX: 0000000000000000
RDX: ffff888013300000 RSI: ffffffff82e95c69 RDI: 0000000000000007
RBP: ffffc90004b2f350 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000002a00 R11: 0000000000000001 R12: ffff888028614000
R13: 0000000000002a00 R14: 00000000000000ff R15: ffffc90004b2f310
FS:  00007f66bb9c4700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000f000 CR3: 000000002c185000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 udf_do_extend_file+0x519/0x860 fs/udf/inode.c:609
 inode_getblk+0x1099/0x3e50 fs/udf/inode.c:818
 udf_map_block+0x2e3/0x560 fs/udf/inode.c:446
 __udf_get_block+0x9c/0x330 fs/udf/inode.c:460
 __block_write_begin_int+0x3b1/0x14a0 fs/buffer.c:2128
 __block_write_begin fs/buffer.c:2178 [inline]
 block_write_begin+0xb9/0x4d0 fs/buffer.c:2239
 udf_write_begin+0x28b/0x370 fs/udf/inode.c:261
 generic_perform_write+0x26b/0x5d0 mm/filemap.c:3923
 __generic_file_write_iter+0x1f8/0x240 mm/filemap.c:4018
 udf_file_write_iter+0x239/0x740 fs/udf/file.c:111
 call_write_iter include/linux/fs.h:1871 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x981/0xda0 fs/read_write.c:584
 ksys_write+0x122/0x250 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f66bba20bf9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f66bb9c4208 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007f66bba20bf9
RDX: 000000000000fd14 RSI: 0000000020000080 RDI: 0000000000000005
RBP: 00007f66bba9f780 R08: 00007f66bba9f788 R09: 00007f66bba9f788
R10: 00007f66bba9f788 R11: 0000000000000246 R12: 00007f66bba9f78c
R13: 00007ffe1b508bbf R14: 00007f66bb9c4300 R15: 0000000000022000
 </TASK>