CVE-2025-40175 (GCVE-0-2025-40175)

Vulnerability from cvelistv5 – Published: 2025-11-12 10:53 – Updated: 2025-12-01 06:19
VLAI?
Title
idpf: cleanup remaining SKBs in PTP flows
Summary
In the Linux kernel, the following vulnerability has been resolved: idpf: cleanup remaining SKBs in PTP flows When the driver requests Tx timestamp value, one of the first steps is to clone SKB using skb_get. It increases the reference counter for that SKB to prevent unexpected freeing by another component. However, there may be a case where the index is requested, SKB is assigned and never consumed by PTP flows - for example due to reset during running PTP apps. Add a check in release timestamping function to verify if the SKB assigned to Tx timestamp latch was freed, and release remaining SKBs.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4901e83a94ef0a8baf27916f31daf59b0a68547f , < 2c84e91ef831d4fedb0b94670b3cfd1cc5f966a5 (git)
Affected: 4901e83a94ef0a8baf27916f31daf59b0a68547f , < a3f8c0a273120fd2638f03403e786c3de2382e72 (git)
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    Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.17.5 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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          "programFiles": [
            "drivers/net/ethernet/intel/idpf/idpf_ptp.c",
            "drivers/net/ethernet/intel/idpf/idpf_virtchnl_ptp.c"
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    "cveId": "CVE-2025-40175",
    "datePublished": "2025-11-12T10:53:50.166Z",
    "dateReserved": "2025-04-16T07:20:57.177Z",
    "dateUpdated": "2025-12-01T06:19:30.807Z",
    "state": "PUBLISHED"
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  }
}


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