net: bridge: vlan: fix bugs caused by switchdev deletion errors

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Summary

CVECVE-2026-98285
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-06 09:18:18 UTC
Updated2026-10-06 09:18:18 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix bugs caused by switchdev deletion errors Allowing switchdev to prevent vlan deletion and error out in __vlan_del could cause multiple different issues - inconsistent state, memory leaks when flushing, NULL pointer dereference on bridge error when flushing. It doesn't make sense to allow it to stop __vlan_del, so log the error and continue with software vlan deletion. This is also consistent with 8021q behaviour.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected bf361ad38165939049a2649b1a0078f3268d4bd1 ed3ea86db736a30bebf49b947c42730e8451bcd2 git Not specified
CNA Linux Linux affected bf361ad38165939049a2649b1a0078f3268d4bd1 2842ce397dd09882530b42f7fdb0c855767eb24e git Not specified
CNA Linux Linux affected 4.3 Not specified
CNA Linux Linux unaffected 4.3 semver Not specified
CNA Linux Linux unaffected 7.2.8 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ed3ea86db736a30bebf49b947c42730e8451bcd2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2842ce397dd09882530b42f7fdb0c855767eb24e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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