CVE-2022-50007

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix refcount leak in __xfrm_policy_check() The issue happens on an error path in __xfrm_policy_check(). When the fetching process of the object `pols[1]` fails, the function simply returns 0, forgetting to decrement the reference count of `pols[0]`, which is incremented earlier by either xfrm_sk_policy_lookup() or xfrm_policy_lookup(). This may result in memory leaks. Fix it by decreasing the reference count of `pols[0]` in that path.

• linux linux kernel (>= 2.6.20 < 4.9.327) • linux linux kernel (>= 4.10 < 4.14.292) • linux linux kernel (>= 4.15 < 4.19.257) • linux linux kernel (>= 4.20 < 5.4.212) • linux linux kernel (>= 5.5 < 5.10.140) • linux linux kernel (>= 5.11 < 5.15.64) • linux linux kernel (>= 5.16 < 5.19.6) • linux linux kernel 2.6.19 • linux linux kernel 6.0