PT-2026-34419 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-04-23 · CVE-2026-31514

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the erofs component where IO requests for file-backed mounts handled by vfs iocb iter read() can be interrupted by SIGKILL. This interruption causes the function to return the number of bytes actually copied, which leads to unused folios in the bio being unexpectedly marked as uptodate.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-31514

Affected Products

Linux Kernel

References · 14

• https://osv.dev/vulnerability/BELL-CVE-2026-31514 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31514 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31514 · Vendor Advisory
• https://git.kernel.org/stable/c/5a5f23ef5431639db1ac3a0b274aef3a84cc413c · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31514 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31514 · Security Note
• https://git.kernel.org/stable/c/eade54040384f54b7fb330e4b0975c5734850b3c · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31514 · Vendor Advisory
• https://git.kernel.org/stable/c/d1ba7d6b3cd1757b108d7b6856c92ae661d6c323 · Patch
• https://ubuntu.com/security/CVE-2026-31514 · Vendor Advisory
• https://git.kernel.org/stable/c/5cf3972c8221abdb1b464a14ccf8103d840b9085 · Patch
• https://git.kernel.org/linus/eade54040384f54b7fb330e4b0975c5734850b3c · Note
• https://twitter.com/CVEnew/status/2046979957906145521 · Twitter Post
• https://docs.bell-sw.com/security/cves/CVE-2026-31514 · Note