CVE-2026-43474
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
08/05/2026
Last modified:
12/05/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
fs: init flags_valid before calling vfs_fileattr_get<br />
<br />
syzbot reported a uninit-value bug in [1].<br />
<br />
Similar to the "*get" context where the kernel&#39;s internal file_kattr<br />
structure is initialized before calling vfs_fileattr_get(), we should<br />
use the same mechanism when using fa.<br />
<br />
[1]<br />
BUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517<br />
fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517<br />
vfs_fileattr_get fs/file_attr.c:94 [inline]<br />
__do_sys_file_getattr fs/file_attr.c:416 [inline]<br />
<br />
Local variable fa.i created at:<br />
__do_sys_file_getattr fs/file_attr.c:380 [inline]<br />
__se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372



