CVE-2026-31514

In the Linux kernel, the following vulnerability has been resolved: erofs: set fileio bio failed in short read case For file-backed mount, IO requests are handled by vfs_iocb_iter_read(). However, it can be interrupted by SIGKILL, returning the number of bytes actually copied. Unused folios in bio are unexpectedly marked as uptodate. vfs_read filemap_read filemap_get_pages filemap_readahead erofs_fileio_readahead erofs_fileio_rq_submit vfs_iocb_iter_read filemap_read filemap_get_pages <= detect signal erofs_fileio_ki_complete <= set all folios uptodate This patch addresses this by setting short read bio with an error directly.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/5a5f23ef5431639db1ac3a0b274aef3a84cc413c	Patch
https://git.kernel.org/stable/c/5cf3972c8221abdb1b464a14ccf8103d840b9085	Patch
https://git.kernel.org/stable/c/d1ba7d6b3cd1757b108d7b6856c92ae661d6c323	Patch
https://git.kernel.org/stable/c/eade54040384f54b7fb330e4b0975c5734850b3c	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-04-22 14:16

Updated : 2026-06-17 10:33

NVD link : CVE-2026-31514

Mitre link : CVE-2026-31514

CVE.ORG link : CVE-2026-31514

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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