CVE-2026-72457
In the Linux kernel, the following vulnerability has been resolved: apparmor: fail policy unpack on accept2 allocation failure unpack_pdb() may need to allocate a missing ACCEPT2 table for older policy data. If that allocation failed, it set an error message but jumped to the success path, returning a policydb with the required table missing. Return -ENOMEM through the normal failure path when the ACCEPT2 allocation fails. Remove the now-unused out label.
Affected versions
Linux kernel versions
6.17
and later are affected. Fixed in
6.18.40,
7.1.5,
7.2-rc1
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-72457?
CVE-2026-72457 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.17 onward and has been patched in 6.18.40, 7.1.5 and 7.2-rc1. CVE-2026-72457 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-72457?
Yes. CVE-2026-72457 has been patched. Fixed versions include 6.18.40, 7.1.5 and 7.2-rc1. If you are running Linux kernel 6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-72457 actively exploited?
No. CVE-2026-72457 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.