What’s Vulnerable › Vulnerabilities

CVE-2026-72458: apparmor: fix NULL pointer dereference in unpack_pdb

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL pointer dereference in unpack_pdb pdb->dfa could be NULL if unpack_dfa fails, causing a NULL pointer dereference.

Affected products

• Linux kernel: 6.17 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/73d86ca950b80cd39ca948e2c518d135bf2308c8
• https://git.kernel.org/stable/c/7681ca43d2b1c776e62fe77e3167835fb1ab8319
• https://git.kernel.org/stable/c/fbfdb5a94a48797bea232791e24c38f3aa3063c8

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