CVE-2025-40175

linux: In the Linux kernel, the following vulnerability has been resolved: idpf: cleanup remaining SKBs in PTP flows When...

CVE-2025-40175 is fixed in 13 products on 1 platform, first by DEBIAN-CVE-2025-40175, released November 12, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0019
8th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-64kb · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-default · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-default · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.8.1.160000.2.5 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-default-base · sles 16.0 6.12.0-160000.8.1.160000.2.5 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-docs · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-docs · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-kvmsmall · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-obs-qa · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-rt · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-source · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-source · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-syms · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-syms · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.8.1 OPENSUSE-SU-2025:20172-1 Dec 19, 2025
kernel-zfcpdump · sles 16.0 6.12.0-160000.8.1 SUSE-SU-2026:20015-1 Dec 19, 2025
linux · Debian 14 6.17.6-1 DEBIAN-CVE-2025-40175 Nov 12, 2025

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