ice: Don't process extts if PTP is disabled (Linux Linux)

CVE-2024-42107
MEDIUM 4.7

At a glance

Source
NVD
EPSS
EPSS 0.21 % · percentile 12 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: ice: Don't process extts if PTP is disabled The ice_ptp_extts_event() function can race with ice_ptp_release() and result in a NULL pointer dereference which leads to a kernel panic. Panic occurs because the ice_ptp_extts_event() function calls ptp_clock_event() with a NULL pointer. The ice driver has already released the PTP clock by the time the interrupt for the next external timestamp event occurs. To fix this, modify the ice_ptp_extts_event() function to check the PTP state and bail early if PTP is not ready.

Weaknesses (CWE)

  • CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition
  • CWE-476 — NULL Pointer Dereference

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 172db5f91d5f7b91670c68a7547798b0b5374158 < 2ab26aeec3de0a677e02d6bc4dc85d49cd1ec4ac ; affected 172db5f91d5f7b91670c68a7547798b0b5374158 < 9aa83a5eb013f8aff20e701aa25ba6b0eaad0b65 ; affected 172db5f91d5f7b91670c68a7547798b0b5374158 < 1c4e524811918600683b1ea87a5e0fc2db64fa9b ; affected 172db5f91d5f7b91670c68a7547798b0b5374158 < 996422e3230e41468f652d754fefd1bdbcd4604e
Linux · Linuxaffected 5.14 ; unaffected 0 < 5.14 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.9.9 ≤ 6.9.* ; unaffected 6.10 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD