Linux Linux Kernel Vulnerability Rated 7.1 CVSS

Last refreshed2026-10-15

Status: UPDATED | Advisory ID: CVE-2026-72440

Key Details

CVE	CVE-2026-72440
CVSS Score / Version	7.1 (High) / CVSS v3.1
Updated	2026-10-15
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is low; availability impact is high.
Affected products	Linux Kernel
Exploitation prediction (EPSS)	0.38% probability of exploitation in the next 30 days (30% percentile) -- FIRST.org's EPSS model.

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

md/raid1: fix writes_pending and barrier reference leaks on write failures

raid1_make_request() acquires a writes_pending reference with

md_write_start() before calling raid1_write_request(). Several failure

paths in raid1_write_request() complete the bio and return without

reaching the normal write completion path, causing the corresponding

md_write_end() to be skipped.

Make raid1_write_request() return a status indicating whether the write

request was successfully queued. This allows raid1_make_request() to

call md_write_end() when raid1_write_request() fails.

Additionally, if wait_blocked_rdev() fails after wait_barrier()

succeeds, the associated barrier reference is not released.

Call allow_barrier() before returning from that path to keep the barrier

accounting balanced. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-72440
CVE	https://www.cve.org/CVERecord?id=CVE-2026-72440

Source

Reference

NVD

CVE