CVE-2021-47307

cifs: prevent NULL deref in cifs_compose_mount_options()

Published: 5/21/2024 Last updated: 5/4/2025 Reserved: 5/21/2024

In the Linux kernel, the following vulnerability has been resolved: cifs: prevent NULL deref in cifs_compose_mount_options() The optional @ref parameter might contain an NULL node_name, so prevent dereferencing it in cifs_compose_mount_options(). Addresses-Coverity: 1476408 ("Explicit null dereferenced")

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	7.77
Linux	Linux	< 6.5

References (8)

https://git.kernel.org/stable/c/f7d1fa65e74263d11f90ddd33b4d4cd905a93759
https://git.kernel.org/stable/c/e58c162789becede894d3e94c0ce6695a2ef5796
https://git.kernel.org/stable/c/ae3d181f4e912f51af7776ea165f199b16fc165d
https://git.kernel.org/stable/c/03313d1c3a2f086bb60920607ab79ac8f8578306
https://git.kernel.org/stable/c/f7d1fa65e74263d11f90ddd33b4d4cd905a93759
https://git.kernel.org/stable/c/e58c162789becede894d3e94c0ce6695a2ef5796
https://git.kernel.org/stable/c/ae3d181f4e912f51af7776ea165f199b16fc165d
https://git.kernel.org/stable/c/03313d1c3a2f086bb60920607ab79ac8f8578306