5.5

CVE-2024-44996: vsock: fix recursive ->recvmsg calls

Analyzed
AliasesUBUNTU-CVE-2024-44996DEBIAN-CVE-2024-44996
Published 04-09-2024Last modified 11-05-2026

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.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 15 · Related 13
MGASA-2024-0309MGASA-2024-0310SUSE-SU-2025:0117-1SUSE-SU-2025:0153-1SUSE-SU-2025:0154-1SUSE-SU-2025:0289-1

Timeline

  1. 04-09-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last 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

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected 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

References

13 links
Show all 13 references