CVE-2026-72458

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.

• How can I get the fixes?
• What do statuses mean?
• Patch details

Patch details

References

• MITRE
• NVD
• Launchpad
• Debian

Related Ubuntu Security Notices (USN)

• USN-8888-1
• Linux kernel (Azure) vulnerabilities
• 6 October 2026
• USN-8889-1
• Linux kernel (OEM) vulnerabilities
• 6 October 2026
• USN-8887-1
• Linux kernel vulnerabilities
• 6 October 2026
• USN-8887-2
• Linux kernel (AWS) vulnerabilities
• 8 October 2026
• USN-8888-2
• Linux kernel (Azure) vulnerabilities
• 8 October 2026
• USN-8887-3
• Linux kernel vulnerabilities
• 9 October 2026

Other references

• https://www.cve.org/CVERecord?id=CVE-2026-72458
• https://git.kernel.org/linus/7681ca43d2b1c776e62fe77e3167835fb1ab8319 (7.2-rc1)
• https://git.kernel.org/stable/c/73d86ca950b80cd39ca948e2c518d135bf2308c8
• https://git.kernel.org/stable/c/7681ca43d2b1c776e62fe77e3167835fb1ab8319
• https://git.kernel.org/stable/c/fbfdb5a94a48797bea232791e24c38f3aa3063c8