CVE-2026-80992
net: ravb: avoid dereferencing an invalid PTP clock
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 11, 2026 |
| Last Updated | Sep 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new high vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
a0d2f20650e81407d8e51ad2cbdc492861c74e9c < 29ffd972531f8e6e0edf4ea3496190acff9fc9c2 a0d2f20650e81407d8e51ad2cbdc492861c74e9c < bf3308416a2be85dcc9965b614a745b40beeff14 a0d2f20650e81407d8e51ad2cbdc492861c74e9c < fc710f89a644e030a7ca15343176ca862fd61b9d a0d2f20650e81407d8e51ad2cbdc492861c74e9c < 8d4d06d6e2b501cb8e30ed3b1924c470358e8052 a0d2f20650e81407d8e51ad2cbdc492861c74e9c < 0aaa53936419cf0c19c670387fc6d431e042a1b6 a0d2f20650e81407d8e51ad2cbdc492861c74e9c < 1f77af0aaf277413ff32f6ff8c2c4282bd64c897
Linux / Linux
4.2
References
git.kernel.org: https://git.kernel.org/stable/c/29ffd972531f8e6e0edf4ea3496190acff9fc9c2 git.kernel.org: https://git.kernel.org/stable/c/bf3308416a2be85dcc9965b614a745b40beeff14 git.kernel.org: https://git.kernel.org/stable/c/fc710f89a644e030a7ca15343176ca862fd61b9d git.kernel.org: https://git.kernel.org/stable/c/8d4d06d6e2b501cb8e30ed3b1924c470358e8052 git.kernel.org: https://git.kernel.org/stable/c/0aaa53936419cf0c19c670387fc6d431e042a1b6 git.kernel.org: https://git.kernel.org/stable/c/1f77af0aaf277413ff32f6ff8c2c4282bd64c897