Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-72308
Published: August 16, 2026
Vulnerability identifier: #VU143134
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-72308
CWE-ID: CWE-772
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a reference count leak in mlxsw_sp_port_lag_join() when handling an error from mlxsw_sp_port_lag_index_get(). A local user can trigger the error path to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-72308
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External 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