CVE-2026-72257: Linux kernel · ASoC: qcom: q6apm: fix NULL pointer dereference in graph_callback
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 7.0.0-1014.14~24.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 12:55 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-1014.14~24.04.1, 7.0.0-1017.17~24.04.1, 7.0.0-1016.16~24.04.1 +11
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 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
Upgrade to a fixed release listed under Affected software.
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 patch is available and should be applied to affected Linux kernel versions to prevent the NULL pointer dereference. The fix adds necessary NULL checks in the affected handlers to avoid crashes. Users should update to patched kernel versions as listed in the affectedVersions field. No additional mitigation actions are specified by the vendor advisory.
Description
A NULL pointer dereference vulnerability was identified and fixed in the Linux kernel's ASoC qcom q6apm driver. The issue occurs when a late DSP buffer-done response races with buffer freeing, leading to a crash due to dereferencing a NULL pointer. This flaw was exposed after updates to the apr bus command processing. Multiple specific Linux kernel versions are affected. A patch is available to address this issue by adding NULL checks within mutex-protected sections to prevent dereferencing freed buffers.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72257 (opens in a new tab)
- git.kernel.org/stable/c/214af790e3a33ab73587de4c925c60a550eae9c6 (opens in a new tab)
- git.kernel.org/stable/c/2c715f8a1e644ce4c3e8be5b0fd3f1f4704b73b3 (opens in a new tab)
- git.kernel.org/stable/c/2e9261761b35f0b67b7487688cd1365f535be0b3 (opens in a new tab)
- git.kernel.org/stable/c/a164e744d8de1c41049bd9a1452a4b6bbf5bd8bc (opens in a new tab)
- git.kernel.org/stable/c/ca028334343a140efda4b22e53cbce2c5e94a489 (opens in a new tab)
- git.kernel.org/stable/c/ec369eac0795cfa8f4d3a0cd35a1e8e15f780331 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72257 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72257 (opens in a new tab)
- git.kernel.org/linus/2e9261761b35f0b67b7487688cd1365f535be0b3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-3 (opens in a new tab)