CVE-2021-47538

rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()

Published: 5/24/2024 Last updated: 5/4/2025 Reserved: 5/24/2024

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer() Need to call rxrpc_put_local() for peer candidate before kfree() as it holds a ref to rxrpc_local. [DH: v2: Changed to abstract the peer freeing code out into a function]

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Opam packages affected (27)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (2)

Product	Vendor	Version
Linux	Linux	< 10.0.19045.4412
Linux	Linux	21.sp1 ap347016

References (10)

https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce
https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a
https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1
https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c
https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29
https://git.kernel.org/stable/c/913c24af2d13a3fd304462916ee98e298d56bdce
https://git.kernel.org/stable/c/3e70e3a72d80b16094faccbe438cd53761c3503a
https://git.kernel.org/stable/c/60f0b9c42cb80833a03ca57c1c8b078d716e71d1
https://git.kernel.org/stable/c/9469273e616ca8f1b6e3773c5019f21b4c8d828c
https://git.kernel.org/stable/c/beacff50edbd6c9659a6f15fc7f6126909fade29