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Fencer Vulns
medium 4.7

CVE-2024-42107 json

ice: Don't process extts if PTP is disabled

published 2024-07-30 2 y ago modified 2026-10-30 10 d ago also EUVD-2024-39939

cvss
4.7
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 11%
public exploits
0
none known

Summary

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.

Patch / fix

  • Linux Linux 6.1.191, 6.6.160, 6.9.9, 6.10
  • linux Debian 14, Debian 13 6.9.9-1

debian advisories DEBIAN-CVE-2024-42107

  • kernel RHEL 9.2 EUS 5.14.0-284.80.1.el9_2
  • perf RHEL 9.2 EUS 5.14.0-284.80.1.el9_2
  • rtla RHEL 9.2 EUS 5.14.0-284.80.1.el9_2
  • bpftool RHEL 9.2 EUS 7.0.0-284.80.1.el9_2
  • kernel-64k RHEL 9.2 EUS 5.14.0-284.80.1.el9_2
  • kernel-core RHEL 9.2 EUS 5.14.0-284.80.1.el9_2
  • kernel-tools RHEL 9.2 EUS 5.14.0-284.80.1.el9_2
  • python3-perf RHEL 9.2 EUS 5.14.0-284.80.1.el9_2

red hat advisories RHSA-2024:5672RHSA-2024:5673

  • kernel-rt Linux Micro 6.0 6.4.0-10.1
  • kernel-source-rt Linux Micro 6.0 6.4.0-10.1
  • kernel-livepatch-MICRO-6-0-RT_Update_2 Linux Micro 6.0 1-1.1
  • kernel-source Linux Micro 6.0 6.4.0-19.1
  • kernel-default Linux Micro 6.0 6.4.0-19.1
  • kernel-kvmsmall Linux Micro 6.0 6.4.0-19.1
  • kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
  • kernel-livepatch-MICRO-6-0_Update_2 Linux Micro 6.0 1-1.1

suse advisories SUSE-SU-2025:20047-1SUSE-SU-2025:20044-1SUSE-SU-2024:3483-1SUSE-SU-2024:3383-1SUSE-SU-2024:3209-1SUSE-SU-2024:3195-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-42107 updated cvss 5.5

kernel: ice: Don't process extts if PTP is disabled

  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
    affected: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.80.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.80.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.80.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.80.1.el9_2 Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.80.1.el9_2, rtla 5.14.0-284.80.1.el9_2, kernel-devel-matched 5.14.0-284.80.1.el9_2, kernel-64k-devel-matched 5.14.0-284.80.1.el9_2, kernel-debug-devel-matched 5.14.0-284.80.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.80.1.el9_2, +5 more Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.80.1.el9_2, kernel 5.14.0-284.80.1.el9_2, kernel-64k 5.14.0-284.80.1.el9_2, kernel-core 5.14.0-284.80.1.el9_2, kernel-tools 5.14.0-284.80.1.el9_2, python3-perf 5.14.0-284.80.1.el9_2, +28 more
    fixed: vendor fix RHSA-2024:5672
  • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-core 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-modules 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-debug-core 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-modules-core 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-debug-modules 5.14.0-284.80.1.rt14.365.el9_2, +4 more Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-kvm 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-core 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-modules 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-debug-kvm 5.14.0-284.80.1.rt14.365.el9_2, kernel-rt-debug-core 5.14.0-284.80.1.rt14.365.el9_2, +6 more
    fixed: vendor fix RHSA-2024:5673
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-doc 5.14.0-284.80.1.el9_2
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Linux Linux

Classification

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

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.