CVE-2026-72308

Description

In 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.

References

• https://git.kernel.org/stable/c/1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e
• https://git.kernel.org/stable/c/2d8b3c3e129973a51ae924bdcf6993a76b828814
• https://git.kernel.org/stable/c/41c8c1d65b32beacd8d916a22457b4f6e47f45af
• https://git.kernel.org/stable/c/8b3350eacd9df0597bfe36a594df7b9def0b3edf
• https://git.kernel.org/stable/c/cab468c3c03f4bcd7530ce2783a4140da14efb7b