CVE-2024-47737: linux NULL Pointer Dereference
Vulnerability summary
CVE-2024-47737 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 18.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 51 · Related 48Timeline
- 21-10-2024PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
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 metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
19%
Versus all other CVEs
30-day change
0.00 pp
From 0.28% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu134 products
- linuxAll versions (No fix recorded) | < 5.4.0-208.228 | < 5.15.0-127.137 | < 6.8.0-54.56
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1140.150 | < 5.15.0-1073.79 | < 6.8.0-1023.25
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < 3e8081ebff12bec1347deaceb6bce0765cce54df | ≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < c6b16e700cf4d959af524bd9d3978407ff7ce462 | ≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < 9f03f0016ff797932551881c7e06ae50e9c39134 | ≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < 9803ab882d565a8fb2dde5999d98866d1c499dfd | ≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < 81821617312988096f5deccf0f7da6f888e98056 | ≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < a1afbbb5276f943ad7173d0b4c626b8c75a260da | ≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < e32ee6a61041925d1a05c14d10352dcfce9ef029 | ≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < 8d0765f86135e27f0bb5c950c136495719b4c834 | ≥ ddd1ea56367202f6c99135cd59de7a97af4c4ffd, < d078cbf5c38de83bc31f83c47dcd2184c04a50c7 | 3.16
- linux_kernel≥ 3.16, < 5.10.227 | ≥ 5.11, < 5.15.168 | ≥ 5.16, < 6.1.113 | ≥ 6.2, < 6.6.54 | ≥ 6.7, < 6.10.13 | ≥ 6.11, < 6.11.2
Debian1 product
- linux< 6.1.115-1 | < 6.11.2-1
3 vendors · 137 products