linux: In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix param_ctx leak on damon_sysf...
CVE-2026-31459 is fixed in 19 products on 1 platform, first by DEBIAN-CVE-2026-31459, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.
In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure Patch series "mm/damon/sysfs: fix memory leak and NULL dereference issues", v4. DAMON_SYSFS can leak memory under allocation failure, and do NULL pointer dereference when a privileged user make wrong sequences of control. Fix those. This patch (of 3): When damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(), param_ctx is leaked because the early return skips the cleanup at the out label. Destroy param_ctx before returning.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel-livepatch-6.18.25-52.107 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| linux · Debian 14 | 6.19.11-1 | DEBIAN-CVE-2026-31459 | May 15, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
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