CVE-2026-63873

accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()

MEDIUM
5.5
CVSS Score
Published: July 19, 2026 at 02:18 PM UTC
Updated: October 30, 2026 at 02:57 PM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range() aie2_populate_range() jumps back to the again label without calling mmput(mm), leaking a reference to the mm_struct. Add the missing mmput() before jumping to again.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.16 ≤ v < 6.18.366.19 ≤ v < 7.0.136.167.1e486147c912f653ef4b60a6c7dbd4168a4c56a9f
Vendor states this is fixed in 21dfec59939120b20d2c7794caaa421f9450be0a (fixed)
Vendor states this is fixed in 2f41af638c92bac6f1f9275ea2d1901baef578f3 (fixed)
Vendor states this is fixed in e83fc4c28226be75fbc0c41f2846935ba2b5f949 (fixed)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.18.36 (unaffected)
Vendor states this is fixed in 7.0.13 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-401

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card