CVE-2026-89437: Linux kernel · platform/x86: int1092: Fix potential memory leak in sar_probe()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 13:47 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 11 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available that converts the memory allocation to device managed allocations, ensuring proper cleanup. Users should apply the updated Linux kernel versions that include this fix. Since this is a kernel-level fix, upgrading to patched kernel versions is the recommended remediation.
Description
A memory leak vulnerability in the Linux kernel's platform/x86 int1092 driver was fixed. The issue involved memory allocated for device_mode_info in parse_package() called by sar_get_data() not being freed on some error paths in sar_probe(). The fix involved converting to device managed allocations to ensure proper memory cleanup.
References
- nvd.nist.gov/vuln/detail/CVE-2026-89437 (opens in a new tab)
- git.kernel.org/stable/c/30c906cff490c3601ee9ff110fe8115fabe75fd4 (opens in a new tab)
- git.kernel.org/stable/c/582b82e573a059be9319bb16b84c45d0ef66f471 (opens in a new tab)
- msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-89437.json (opens in a new tab)
- support.microsoft.com/lifecycle (opens in a new tab)
- first.org/cvss (opens in a new tab)
- ubuntu.com/security/CVE-2026-89437 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-89437 (opens in a new tab)
- git.kernel.org/linus/30c906cff490c3601ee9ff110fe8115fabe75fd4 (opens in a new tab)
- git.kernel.org/stable/c/08dab7065f9369dd0a0aa740071bcd884c4848b0 (opens in a new tab)
- git.kernel.org/stable/c/4bdbb7f1045820aa8fd87d84db6b26c01049a005 (opens in a new tab)