CVE-2026-89992
cpuidle: dt_idle_genpd: kfree() the original name allocation
CVE-2026-89992 is fixed in 57 products on 1 platform, first by DEBIAN-CVE-2026-89992, released September 23, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.4
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0018
7th percentile
In the Linux kernel, the following vulnerability has been resolved: cpuidle: dt_idle_genpd: kfree() the original name allocation dt_idle_pd_alloc() kasprintf()s the full node path, then points pd->name at kbasename() of that string. dt_idle_pd_free() kfree()s pd->name, which is no longer the start of the allocation. Copy the basename instead.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| bpftool-debuginfo · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| bpftool6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-debuginfo · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-devel · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-headers · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-livepatch-6.1.188-233.385 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-livepatch-6.12.110-135.201 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel-livepatch-6.18.51-120.162 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel-modules-extra · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-modules-extra-common · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-tools · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-tools-debuginfo · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel-tools-devel · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.190-1 | DEBIAN-CVE-2026-89992 | Sep 23, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.111-1 | DEBIAN-CVE-2026-89992 | Sep 23, 2026 |
| linux · Debian 14 | 7.2.6-1 | DEBIAN-CVE-2026-89992 | Sep 23, 2026 |
| linux-6.12 · Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | DEBIAN-CVE-2026-89992 | Sep 23, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| perf · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| perf-debuginfo · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| python3-perf · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| python3-perf-debuginfo · amzn 2023 | 1:6.1.188-233.385.amzn2023 | ALAS2023-2026-3197 | Nov 7, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.110-135.201.amzn2023 | ALAS2023-2026-3196 | Nov 7, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.51-120.162.amzn2023 | ALAS2023-2026-3187 | Nov 7, 2026 |
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