ice: fix potential NULL pointer deref in error path of ice_set_ringparam()

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Summary

CVECVE-2026-53007
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-24 17:17:11 UTC
Updated2026-06-24 17:17:11 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ice: fix potential NULL pointer deref in error path of ice_set_ringparam() ice_set_ringparam nullifies tstamp_ring of temporary tx_rings, without clearing ICE_TX_RING_FLAGS_TXTIME bit. When ICE_TX_RING_FLAGS_TXTIME is set and the subsequent ice_setup_tx_ring() call fails, a NULL pointer dereference could happen in the unwinding sequence: ice_clean_tx_ring() -> ice_is_txtime_cfg() == true (ICE_TX_RING_FLAGS_TXTIME is set) -> ice_free_tx_tstamp_ring() -> ice_free_tstamp_ring() -> tstamp_ring->desc (NULL deref) Clear ICE_TX_RING_FLAGS_TXTIME bit to avoid the potential issue. Note that this potential issue is found by manual code review. Compile test only since unfortunately I don't have E830 devices.

Risk And Classification

EPSS: 0.001550000 probability, percentile 0.050470000 (date 2026-06-27)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 c54e3c270384829336b2526033d44ce1aa6dc67c git Not specified
CNA Linux Linux affected ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 fa28351f970fa5138c7c5dedfe5dea480a0ee065 git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/fa28351f970fa5138c7c5dedfe5dea480a0ee065 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c54e3c270384829336b2526033d44ce1aa6dc67c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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