CVE-2026-43474: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: fs: init flags_valid before calling vfs_fileattr_get syzbot reported a uninit-value bug in [1]. Similar to the "*get" context where the kernel's internal file_kattr structure is initialized before calling vfs_fileattr_get(), we should use the same mechanism when using fa. [1] BUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517 fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517 vfs_fileattr_get fs/file_attr.c:94 [inline] __do_sys_file_getattr fs/file_attr.c:416 [inline] Local variable fa.i created at: __do_sys_file_getattr fs/file_attr.c:380 [inline] __se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372

Засегнати продукти

• Linux Linux: be7efb2d20d67f334a7de2aef77ae6c69367e646 преди 379e19e820dd1c6145426b97467728b3b89c0b42; be7efb2d20d67f334a7de2aef77ae6c69367e646 преди b8c182b2c8c44c6016b11d8af61715ad7ef958a1; be7efb2d20d67f334a7de2aef77ae6c69367e646 преди cb184dd19154fc486fa3d9e02afe70a97e54e055
• Linux Linux: 6.17; преди 6.17; 6.18.19 до 6.18.*; 6.19.9 до 6.19.*; от 7.0 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-43474
• https://nvd.nist.gov/vuln/detail/CVE-2026-43474
• https://git.kernel.org/stable/c/379e19e820dd1c6145426b97467728b3b89c0b42
• https://git.kernel.org/stable/c/b8c182b2c8c44c6016b11d8af61715ad7ef958a1
• https://git.kernel.org/stable/c/cb184dd19154fc486fa3d9e02afe70a97e54e055