ice: ptp: don't WARN when controlling PF is unavailable

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Summary

CVECVE-2026-43346
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-08 14:16:44 UTC
Updated2026-05-08 14:16:44 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.000170000 probability, percentile 0.041290000 (date 2026-05-11)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e800654e85b5b27966fc6493201f5f8cf658beb6 e19675b384e9dcaca1bd5e4a67b8ad136eccfbe8 git Not specified
CNA Linux Linux affected e800654e85b5b27966fc6493201f5f8cf658beb6 c73f365707d3b1b78b7d16e1f029020d1ae50d0f git Not specified
CNA Linux Linux affected e800654e85b5b27966fc6493201f5f8cf658beb6 bb3f21edc7056cdf44a7f7bd7ba65af40741838c git Not specified
CNA Linux Linux affected 2f59743be4d9568cad2d9cf697d1b897975421ed git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.24 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.14 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/bb3f21edc7056cdf44a7f7bd7ba65af40741838c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c73f365707d3b1b78b7d16e1f029020d1ae50d0f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e19675b384e9dcaca1bd5e4a67b8ad136eccfbe8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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