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.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

Published

2026-09-11

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

References

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

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