CVE-2026-31653

linux: In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeat_call_control if d...

CVE-2026-31653 is fixed in 19 products on 1 platform, first by ALAS2023-2026-1693, released May 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0011
1st percentile

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].

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.18 · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel-livepatch-6.18.25-55.108 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18 · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-devel · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-headers · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-tools · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
linux · Debian 14 6.19.13-1 DEBIAN-CVE-2026-31653 May 15, 2026
perf6.18 · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
python3-perf6.18 · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.25-55.108.amzn2023 ALAS2023-2026-1693 May 8, 2026

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