CVE-2024-47737: nfsd: call cache_put if xdr_reserve_space returns NULL
First published: Mon Oct 21 2024(Updated: )
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>
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=3.16<5.10.227 | |
| Linux Kernel | >=5.11<5.15.168 | |
| Linux Kernel | >=5.16<6.1.113 | |
| Linux Kernel | >=6.2<6.6.54 | |
| Linux Kernel | >=6.7<6.10.13 | |
| Linux Kernel | >=6.11<6.11.2 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/3e8081ebff12bec1347deaceb6bce0765cce54df
- https://git.kernel.org/stable/c/81821617312988096f5deccf0f7da6f888e98056
- https://git.kernel.org/stable/c/8d0765f86135e27f0bb5c950c136495719b4c834
- https://git.kernel.org/stable/c/9803ab882d565a8fb2dde5999d98866d1c499dfd
- https://git.kernel.org/stable/c/9f03f0016ff797932551881c7e06ae50e9c39134
- https://git.kernel.org/stable/c/a1afbbb5276f943ad7173d0b4c626b8c75a260da
- https://git.kernel.org/stable/c/c6b16e700cf4d959af524bd9d3978407ff7ce462
- https://git.kernel.org/stable/c/d078cbf5c38de83bc31f83c47dcd2184c04a50c7
- https://git.kernel.org/stable/c/e32ee6a61041925d1a05c14d10352dcfce9ef029
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-47737
- https://nvd.nist.gov/vuln/detail/CVE-2024-47737
- https://launchpad.net/bugs/cve/CVE-2024-47737
- https://security-tracker.debian.org/tracker/CVE-2024-47737
- https://ubuntu.com/security/CVE-2024-47737
- https://git.kernel.org/linus/d078cbf5c38de83bc31f83c47dcd2184c04a50c7
Frequently Asked Questions
What is the severity of CVE-2024-47737?
CVE-2024-47737 is classified as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2024-47737?
To fix CVE-2024-47737, update the Linux kernel to one of the patched versions listed in the vulnerability report.
Which versions of the Linux kernel are affected by CVE-2024-47737?
CVE-2024-47737 affects Linux kernel versions up to and including 5.10.226, as well as various versions up to 6.1.113.
What is the impact of CVE-2024-47737 on the Linux system?
The impact of CVE-2024-47737 could potentially lead to resource leaks affecting the stability of the Linux system.
Has CVE-2024-47737 been resolved?
Yes, CVE-2024-47737 has been resolved in newer versions of the Linux kernel.
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