CVE-2026-31459
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
22/04/2026
Last modified:
23/04/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure<br />
<br />
Patch series "mm/damon/sysfs: fix memory leak and NULL dereference<br />
issues", v4.<br />
<br />
DAMON_SYSFS can leak memory under allocation failure, and do NULL pointer<br />
dereference when a privileged user make wrong sequences of control. Fix<br />
those.<br />
<br />
<br />
This patch (of 3):<br />
<br />
When damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(),<br />
param_ctx is leaked because the early return skips the cleanup at the out<br />
label. Destroy param_ctx before returning.