CVE-2026-80992

In the Linux kernel, the following vulnerability has been resolved: net: ravb: avoid dereferencing an invalid PTP clock The PTP clock is unavailable before the first open, so querying its index can dereference a NULL pointer. Registration failures can also leave an error pointer in priv->ptp.clock. Cache the PHC index separately and report -1 while no clock is registered. Normalize registration errors to NULL and preserve the static timestamping capabilities.

Score

CVSS 3.1 7.8 High

Status

Received - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-09-11

Last modified

2026-10-19

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/29ffd972531f8e6e0edf4ea3496190acff9fc9c2
• https://git.kernel.org/stable/c/bf3308416a2be85dcc9965b614a745b40beeff14
• https://git.kernel.org/stable/c/fc710f89a644e030a7ca15343176ca862fd61b9d
• https://git.kernel.org/stable/c/8d4d06d6e2b501cb8e30ed3b1924c470358e8052
• https://git.kernel.org/stable/c/0aaa53936419cf0c19c670387fc6d431e042a1b6
• https://git.kernel.org/stable/c/1f77af0aaf277413ff32f6ff8c2c4282bd64c897