Description
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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= a0d2f20650e81407d8e51ad2cbdc492861c74e9c, < 29ffd972531f8e6e0edf4ea3496190acff9fc9c2; >= a0d2f20650e81407d8e51ad2cbdc492861c74e9c, < bf3308416a2be85dcc9965b614a745b40beeff14; >= a0d2f20650e81407d8e51ad2cbdc492861c74e9c, < fc710f89a644e030a7ca15343176ca862fd61b9d; >= a0d2f20650e81407d8e51ad2cbdc492861c74e9c, < 8d4d06d6e2b501cb8e30ed3b1924c470358e8052; >= a0d2f20650e81407d8e51ad2cbdc492861c74e9c, < 0aaa53936419cf0c19c670387fc6d431e042a1b6; >= a0d2f20650e81407d8e51ad2cbdc492861c74e9c, < 1f77af0aaf277413ff32f6ff8c2c4282bd64c897 |
| Linux | Linux | 4.2 |
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
- https://git.kernel.org/stable/c/fc710f89a644e030a7ca15343176ca862fd61b9d
Timeline
- Published
- Sep 11, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received