CVE-2024-47737 Information

Description

In the Linux kernel the following vulnerability has been resolved:

nfsd: call cache_put if xdr_reserve_space returns NULL

If not enough buffer space available but idmap_lookup has triggered lookup_fn which calls cache_get and returns successfully. Then we missed to call cache_put here which pairs with cache_get.

Reviwed-by: Jeff Layton jlayton@kernel.org

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://git.kernel.org/stable/c/9f03f0016ff797932551881c7e06ae50e9c39134 https://git.kernel.org/stable/c/9803ab882d565a8fb2dde5999d98866d1c499dfd https://git.kernel.org/stable/c/81821617312988096f5deccf0f7da6f888e98056 https://git.kernel.org/stable/c/a1afbbb5276f943ad7173d0b4c626b8c75a260da https://git.kernel.org/stable/c/e32ee6a61041925d1a05c14d10352dcfce9ef029 https://git.kernel.org/stable/c/8d0765f86135e27f0bb5c950c136495719b4c834 https://git.kernel.org/stable/c/d078cbf5c38de83bc31f83c47dcd2184c04a50c7

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5