=====================================================
BUG: KMSAN: uninit-value in udf_get_fileshortad+0x174/0x1c0 fs/udf/directory.c:504
 udf_get_fileshortad+0x174/0x1c0 fs/udf/directory.c:504
 udf_current_aext+0x6cb/0x950 fs/udf/inode.c:2225
 udf_truncate_extents+0x7ba/0x19e0 fs/udf/truncate.c:220
 udf_setsize+0x156d/0x1600 fs/udf/inode.c:1289
 udf_setattr+0x606/0x890 fs/udf/file.c:236
 notify_change+0x1a8e/0x1b80 fs/attr.c:503
 do_truncate+0x22a/0x2b0 fs/open.c:65
 handle_truncate fs/namei.c:3381 [inline]
 do_open fs/namei.c:3731 [inline]
 path_openat+0x58a5/0x6100 fs/namei.c:3886
 do_filp_open+0x20e/0x590 fs/namei.c:3913
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_creat fs/open.c:1507 [inline]
 __se_sys_creat fs/open.c:1501 [inline]
 __x64_sys_creat+0xe6/0x140 fs/open.c:1501
 x64_sys_call+0x3a6c/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:86
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 __alloc_pages_noprof+0x9d6/0xe70 mm/page_alloc.c:4725
 alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2263
 alloc_pages_noprof mm/mempolicy.c:2343 [inline]
 folio_alloc_noprof+0x1db/0x310 mm/mempolicy.c:2350
 filemap_alloc_folio_noprof+0xa6/0x440 mm/filemap.c:1008
 __filemap_get_folio+0xa05/0x14b0 mm/filemap.c:1950
 grow_dev_folio fs/buffer.c:1047 [inline]
 grow_buffers fs/buffer.c:1113 [inline]
 __getblk_slow fs/buffer.c:1139 [inline]
 bdev_getblk+0x2c9/0xab0 fs/buffer.c:1441
 __bread_gfp+0x93/0x730 fs/buffer.c:1495
 sb_bread include/linux/buffer_head.h:347 [inline]
 udf_truncate_extents+0x11a3/0x19e0 fs/udf/truncate.c:239
 udf_setsize+0x156d/0x1600 fs/udf/inode.c:1289
 udf_setattr+0x606/0x890 fs/udf/file.c:236
 notify_change+0x1a8e/0x1b80 fs/attr.c:503
 do_truncate+0x22a/0x2b0 fs/open.c:65
 handle_truncate fs/namei.c:3381 [inline]
 do_open fs/namei.c:3731 [inline]
 path_openat+0x58a5/0x6100 fs/namei.c:3886
 do_filp_open+0x20e/0x590 fs/namei.c:3913
 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_creat fs/open.c:1507 [inline]
 __se_sys_creat fs/open.c:1501 [inline]
 __x64_sys_creat+0xe6/0x140 fs/open.c:1501
 x64_sys_call+0x3a6c/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:86
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 5495 Comm: syz.0.39 Not tainted 6.11.0-rc7-syzkaller-00097-g196145c606d0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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