netfilter: nft_ct: drop pending enqueued packets on removal

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Summary

CVECVE-2026-43060
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-05 16:16:15 UTC
Updated2026-05-06 13:08:07 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: drop pending enqueued packets on removal Packets sitting in nfqueue might hold a reference to: - templates that specify the conntrack zone, because a percpu area is used and module removal is possible. - conntrack timeout policies and helper, where object removal leave a stale reference. Since these objects can just go away, drop enqueued packets to avoid stale reference to them. If there is a need for finer grain removal, this logic can be revisited to make selective packet drop upon dependencies.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 7e0b2b57f01d183e1c84114f1f2287737358d748 8a64e76933672b08bd85b63086f33432070fd729 git Not specified
CNA Linux Linux affected 7e0b2b57f01d183e1c84114f1f2287737358d748 3da0b946835f33bf36b459ead764c61a761e689b git Not specified
CNA Linux Linux affected 7e0b2b57f01d183e1c84114f1f2287737358d748 ab50302190b303f847c4eba0e31a01a56dec596e git Not specified
CNA Linux Linux affected 7e0b2b57f01d183e1c84114f1f2287737358d748 e68a8db3a0546482b34e9ca5ca886bcf73eb37bb git Not specified
CNA Linux Linux affected 7e0b2b57f01d183e1c84114f1f2287737358d748 6802ff8beceb9c4254318e81c1395720438f2cc2 git Not specified
CNA Linux Linux affected 7e0b2b57f01d183e1c84114f1f2287737358d748 f29a055e4f593e577805b41228b142b58f48df1b git Not specified
CNA Linux Linux affected 7e0b2b57f01d183e1c84114f1f2287737358d748 77da55dee67720e2b8d2db49a53334e6c017ee7b git Not specified
CNA Linux Linux affected 7e0b2b57f01d183e1c84114f1f2287737358d748 36eae0956f659e48d5366d9b083d9417f3263ddc git Not specified
CNA Linux Linux affected 4.19 Not specified
CNA Linux Linux unaffected 4.19 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.167 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.78 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.20 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.10 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/77da55dee67720e2b8d2db49a53334e6c017ee7b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ab50302190b303f847c4eba0e31a01a56dec596e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6802ff8beceb9c4254318e81c1395720438f2cc2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8a64e76933672b08bd85b63086f33432070fd729 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/36eae0956f659e48d5366d9b083d9417f3263ddc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e68a8db3a0546482b34e9ca5ca886bcf73eb37bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f29a055e4f593e577805b41228b142b58f48df1b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3da0b946835f33bf36b459ead764c61a761e689b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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