mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72308
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:03 UTC
Updated2026-08-17 06:18:33 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: mlxsw: fix refcount leak in mlxsw_sp_port_lag_join() When mlxsw_sp_port_lag_index_get() fails, mlxsw_sp_port_lag_join() returns an error without releasing the lag reference obtained by the earlier mlxsw_sp_lag_get(). All other error paths in the function jump to the cleanup label that ends with mlxsw_sp_lag_put(), so this is a single missed release. Fix the leak by replacing the bare 'return err' with a goto to the existing error cleanup label, which will drop the reference safely.

Risk And Classification

EPSS: 0.002090000 probability, percentile 0.113500000 (date 2026-08-17)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 8b3350eacd9df0597bfe36a594df7b9def0b3edf git Not specified
CNA Linux Linux affected 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e git Not specified
CNA Linux Linux affected 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 2d8b3c3e129973a51ae924bdcf6993a76b828814 git Not specified
CNA Linux Linux affected 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 cab468c3c03f4bcd7530ce2783a4140da14efb7b git Not specified
CNA Linux Linux affected 0d65fc13042fce6a2d6de58ff0dc9531e8523c07 41c8c1d65b32beacd8d916a22457b4f6e47f45af git Not specified
CNA Linux Linux affected 4.5 Not specified
CNA Linux Linux unaffected 4.5 semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/8b3350eacd9df0597bfe36a594df7b9def0b3edf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/41c8c1d65b32beacd8d916a22457b4f6e47f45af 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/cab468c3c03f4bcd7530ce2783a4140da14efb7b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2d8b3c3e129973a51ae924bdcf6993a76b828814 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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