CVE-2026-31653

MEDIUM EPSS 1.7%
Published Apr 24, 20262mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 24, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails damon_call() for repeat_call_control of DAMON_SYSFS could fail if somehow the kdamond is stopped before the damon_call(). It could happen, for example, when te damon context was made for monitroing of a virtual address processes, and the process is terminated immediately, before the damon_call() invocation. In the case, the dyanmically allocated repeat_call_control is not deallocated and leaked. Fix the leak by deallocating the repeat_call_control under the damon_call() failure. This issue is discovered by sashiko [1].

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel*≥6.17.1  –  <6.18.23
linuxlinux_kernel*≥6.19  –  <6.19.13
linuxlinux_kernel6.17any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/0199390a6b92fc21860e1b858abf525c7e73b956
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0655f5cf1735508394ef8af98ddcfab3ac1c1cc5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b9dadf026a9fb681ed32a0646adc10ab485bf3b1
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0199390a6b92fc21860e1b858abf525c7e73b956
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/0655f5cf1735508394ef8af98ddcfab3ac1c1cc5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b9dadf026a9fb681ed32a0646adc10ab485bf3b1
    Patch