Medium 5.5Published May 8, 2026

CVE-2026-43346ice: ptp: don't WARN when controlling PF is unavailable

Updated under an hour ago (Oct 26, 2026, 4:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ice: ptp: don't WARN when controlling PF is unavailable In VFIO passthrough setups, it is possible to pass through only a PF which doesn't own the source timer. In that case the PTP controlling PF (adapter->ctrl_pf) is never initialized in the VM, so ice_get_ctrl_ptp() returns NULL and triggers WARN_ON() in ice_ptp_setup_pf(). Since this is an expected behavior in that configuration, replace WARN_ON() with an informational message and return -EOPNOTSUPP.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 2f59743be4d9568cad2d9cf697d1b897975421ed before 228497715a162d040df1617e62c3b7d0df54b235; from e800654e85b5b27966fc6493201f5f8cf658beb6 before e19675b384e9dcaca1bd5e4a67b8ad136eccfbe8; from e800654e85b5b27966fc6493201f5f8cf658beb6 before c73f365707d3b1b78b7d16e1f029020d1ae50d0f; from e800654e85b5b27966fc6493201f5f8cf658beb6 before bb3f21edc7056cdf44a7f7bd7ba65af40741838c; from 6.12.11 before 6.12.114	CNA record
linux linux_kernel linux:linux_kernel	from 6.12.11 before 6.13; from 6.13 before 6.18.24; from 6.19 before 6.19.14; 7.0; 7.0; 7.0; 7.0; 7.0; and 2 more ranges	NVD

References

References

https://git.kernel.org/stable/c/228497715a162d040df1617e62c3b7d0df54b235
https://git.kernel.org/stable/c/e19675b384e9dcaca1bd5e4a67b8ad136eccfbe8	patch
https://git.kernel.org/stable/c/c73f365707d3b1b78b7d16e1f029020d1ae50d0f	patch
https://git.kernel.org/stable/c/bb3f21edc7056cdf44a7f7bd7ba65af40741838c	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.