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CVE-2026-43474

fs: init flags_valid before calling vfs_fileattr_get

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
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version be7efb2d20d67f334a7de2aef77ae6c69367e646
Version < 379e19e820dd1c6145426b97467728b3b89c0b42
Status affected
Version be7efb2d20d67f334a7de2aef77ae6c69367e646
Version < b8c182b2c8c44c6016b11d8af61715ad7ef958a1
Status affected
Version be7efb2d20d67f334a7de2aef77ae6c69367e646
Version < cb184dd19154fc486fa3d9e02afe70a97e54e055
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.17
Status affected
Version 0
Version < 6.17
Status unaffected
Version <= 6.18.*
Version 6.18.19
Status unaffected
Version <= 6.19.*
Version 6.19.9
Status unaffected
Version <= *
Version 7.0
Status unaffected
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.063
CVSS Metriken
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