CVE-2026-97544: Linux kernel · xfs: don't leak dqacct if rhashtable insertion fails
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 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 addresses the memory leak by ensuring the allocated dqa object is freed if rhashtable insertion fails. Users should update to patched Linux kernel versions that include this fix. No additional mitigation steps are indicated.
Description
A vulnerability in the Linux kernel's XFS filesystem code could cause a memory leak when the rhashtable insertion fails during quota accounting. Specifically, the function xqcheck_mod_live_ino_dqtrx does not free a newly allocated dqa object if the insertion into the rhashtable fails, leading to resource leakage. This issue has been resolved in certain Linux kernel versions.
References
- ubuntu.com/security/CVE-2026-97544 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97544 (opens in a new tab)
- git.kernel.org/stable/c/2eac8d01d2c776fc26b0ac74aebdf91bc4490891 (opens in a new tab)
- git.kernel.org/stable/c/9036e078bd51683e862afd5ed25ecba2f780b165 (opens in a new tab)
- git.kernel.org/stable/c/788c3a46ef9d79f875312b95cffe0961a13167a7 (opens in a new tab)
- git.kernel.org/stable/c/7791970a76a3e23f6f51451dbb1e48bd57f94f93 (opens in a new tab)