What’s Vulnerable › Vulnerabilities

CVE-2026-72373: afs: Fix missing NULL pointer check in afs_break_some_callbacks()

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-10-16

Description

In the Linux kernel, the following vulnerability has been resolved: afs: Fix missing NULL pointer check in afs_break_some_callbacks() Fix afs_break_some_callbacks() to check to see if afs_lookup_volume_rcu() returned NULL (e.g. the specified volume is unknown).

Affected products

• Linux kernel: 5.8 — 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/5492799ec5d27be3bd454dcaf046bc7054f637ae
• https://git.kernel.org/stable/c/794a01110390c1b76f59ece773fb0fbfd89c6f5c
• https://git.kernel.org/stable/c/a99a617701186dc68c7b330d35fc2253f48e2ab2
• https://git.kernel.org/stable/c/e3e59ff22a0de01ed0cf3a3e25558811abc3b70a

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