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CVE-2026-80992

net: ravb: avoid dereferencing an invalid PTP clock

HIGH
7.8
CVSS Score
Published: September 11, 2026 at 07:42 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
4.2a0d2f20650e81407d8e51ad2cbdc492861c74e9c
Vendor states this is fixed in 0aaa53936419cf0c19c670387fc6d431e042a1b6 (fixed)
Vendor states this is fixed in 1f77af0aaf277413ff32f6ff8c2c4282bd64c897 (fixed)
Vendor states this is fixed in 29ffd972531f8e6e0edf4ea3496190acff9fc9c2 (fixed)
Vendor states this is fixed in 8d4d06d6e2b501cb8e30ed3b1924c470358e8052 (fixed)
Vendor states this is fixed in bf3308416a2be85dcc9965b614a745b40beeff14 (fixed)
Vendor states this is fixed in fc710f89a644e030a7ca15343176ca862fd61b9d (fixed)
Vendor states this is fixed in 4.2 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

Source: cverecord
https://git.kernel.org/stable/c/fc710f89a644e030a7ca15343176ca862fd61b9d
Source: cverecord
https://git.kernel.org/stable/c/8d4d06d6e2b501cb8e30ed3b1924c470358e8052
Source: cverecord
https://git.kernel.org/stable/c/0aaa53936419cf0c19c670387fc6d431e042a1b6
Source: cverecord
https://git.kernel.org/stable/c/1f77af0aaf277413ff32f6ff8c2c4282bd64c897
Source: cverecord
https://git.kernel.org/stable/c/29ffd972531f8e6e0edf4ea3496190acff9fc9c2
Source: cverecord
https://git.kernel.org/stable/c/bf3308416a2be85dcc9965b614a745b40beeff14

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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