CVE-2024-44996: linux Uncontrolled Recursion
Vulnerability summary
CVE-2024-44996 is a medium (CVSS 5.5) Uncontrolled Recursion vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 15 · Related 13Timeline
- 04-09-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: vsock: fix recursive ->recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot->recvmsg has been replaced with vsock_bpf_recvmsg(). Thus the following recursiion could happen: vsock_bpf_recvmsg() -> __vsock_recvmsg() -> vsock_connectible_recvmsg() -> prot->recvmsg() -> vsock_bpf_recvmsg() again We need to fix it by calling the original ->recvmsg() without any BPF sockmap logic in __vsock_recvmsg().
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
0.21%
Chance of exploitation in the next 30 days
Percentile
11%
Versus all other CVEs
30-day change
0.00 pp
From 0.21% on 22-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu93 products
- linux< 6.8.0-50.51
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1020.22
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 634f1a7110b439c65fd8a809171c1d2d28bcea6f, < 921f1acf0c3cf6b1260ab57a8a6e8b3d5f3023d5 | ≥ 634f1a7110b439c65fd8a809171c1d2d28bcea6f, < b4ee8cf1acc5018ed1369150d7bb3e0d0f79e135 | ≥ 634f1a7110b439c65fd8a809171c1d2d28bcea6f, < 69139d2919dd4aa9a553c8245e7c63e82613e3fc | 6.4
- linux_kernel≥ 6.4, < 6.6.48 | ≥ 6.7, < 6.10.7 | 6.11:rc1 | 6.11:rc2 | 6.11:rc3
Debian1 product
- linux< 6.10.7-1
3 vendors · 96 products