CVE-2025-22005 - Linux Kernel IPv6 Memory Leak Vulnerability

CVE-2025-22005 - Linux Kernel IPv6 Memory Leak Vulnerability

https://cvefeed.io/rssfeed/latest.atom / Thu, 04/03/2025 - 14:33
CVE ID : CVE-2025-22005
Published : April 3, 2025, 8:15 a.m. | 3 hours, 29 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw(). fib_check_nh_v6_gw() expects that fib6_nh_init() cleans up everything when it fails. Commit 7dd73168e273 ("ipv6: Always allocate pcpu memory in a fib6_nh") moved fib_nh_common_init() before alloc_percpu_gfp() within fib6_nh_init() but forgot to add cleanup for fib6_nh->nh_common.nhc_pcpu_rth_output in case it fails to allocate fib6_nh->rt6i_pcpu, resulting in memleak. Let's call fib_nh_common_release() and clear nhc_pcpu_rth_output in the error path. Note that we can remove the fib6_nh_release() call in nh_create_ipv6() later in net-next.git.
Severity: 0.0 | NA
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