CVE-2026-80992
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedSep 11, 2026
First seenSep 11, 2026
How to fix
Update
- Linux Linux29ffd972531f8e6e0edf4ea3496190acff9fc9c2, bf3308416a2be85dcc9965b614a745b40beeff14, fc710f89a644e030a7ca15343176ca862fd61b9d, 8d4d06d6e2b501cb8e30ed3b1924c470358e8052, 0aaa53936419cf0c19c670387fc6d431e042a1b6, 1f77af0aaf277413ff32f6ff8c2c4282bd64c897 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | a0d2f20650e81407d8e51ad2cbdc492861c74e9c ≤ v < 29ffd972531f8e6e0edf4ea3496190acff9fc9c2, a0d2f20650e81407d8e51ad2cbdc492861c74e9c ≤ v < bf3308416a2be85dcc9965b614a745b40beeff14, a0d2f20650e81407d8e51ad2cbdc492861c74e9c ≤ v < fc710f89a644e030a7ca15343176ca862fd61b9d, a0d2f20650e81407d8e51ad2cbdc492861c74e9c ≤ v < 8d4d06d6e2b501cb8e30ed3b1924c470358e8052, a0d2f20650e81407d8e51ad2cbdc492861c74e9c ≤ v < 0aaa53936419cf0c19c670387fc6d431e042a1b6, a0d2f20650e81407d8e51ad2cbdc492861c74e9c ≤ v < 1f77af0aaf277413ff32f6ff8c2c4282bd64c897, 4.2 | 29ffd972531f8e6e0edf4ea3496190acff9fc9c2, bf3308416a2be85dcc9965b614a745b40beeff14, fc710f89a644e030a7ca15343176ca862fd61b9d, 8d4d06d6e2b501cb8e30ed3b1924c470358e8052, 0aaa53936419cf0c19c670387fc6d431e042a1b6, 1f77af0aaf277413ff32f6ff8c2c4282bd64c897 |
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