CVE-2026-72308
mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.5
References 8
git.kernel.org
- stable/c/3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b
- stable/c/99ff5b0083eae6f774360c4ea6874604e6c9b553
- stable/c/9bf2d6eea26a226f8ebab7baea6f2b018f914560
- stable/c/8b3350eacd9df0597bfe36a594df7b9def0b3edf
- stable/c/1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e
- stable/c/2d8b3c3e129973a51ae924bdcf6993a76b828814
- stable/c/cab468c3c03f4bcd7530ce2783a4140da14efb7b
- stable/c/41c8c1d65b32beacd8d916a22457b4f6e47f45af