CVE-2026-80992net: ravb: avoid dereferencing an invalid PTP clock
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from a0d2f20650e81407d8e51ad2cbdc492861c74e9c before 29ffd972531f8e6e0edf4ea3496190acff9fc9c2; from a0d2f20650e81407d8e51ad2cbdc492861c74e9c before bf3308416a2be85dcc9965b614a745b40beeff14; from a0d2f20650e81407d8e51ad2cbdc492861c74e9c before fc710f89a644e030a7ca15343176ca862fd61b9d; from a0d2f20650e81407d8e51ad2cbdc492861c74e9c before 8d4d06d6e2b501cb8e30ed3b1924c470358e8052; from a0d2f20650e81407d8e51ad2cbdc492861c74e9c before 0aaa53936419cf0c19c670387fc6d431e042a1b6; from a0d2f20650e81407d8e51ad2cbdc492861c74e9c before 1f77af0aaf277413ff32f6ff8c2c4282bd64c897 | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.