SEPTEMBER 18, 2026
Live Feed
Back to database
Case File

CVE-2026-80720

HIGH · CVSS 7.5 EPSS 0.34%

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel's iomap functionality, specifically in the handling of bio structures, which can lead to a deadlock condition when the bioset is exhausted. This issue could disrupt I/O operations, potentially impacting system stability and performance. Linux system administrators and developers should prioritize this fix to ensure the reliability of their systems and prevent potential service interruptions.

CVE
CVE-2026-80720
Severity
HIGH
CVSS
7.5
EPSS
0.34%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: iomap: add a separate bio_set for iomap_split_ioend iomap_split_ioend can split bios that already come from iomap_ioend_bioset and thus deadlock when the bioset is exhausted. Add a separate bio_set to avoid this deadlock. Christian Brauner <brauner@kernel.org> says: Mark iomap_ioend_split_bioset static as it is only used in ioend.c, fixing the sparse warning reported by the kernel test robot.