7.8

CVE-2024-56709: linux

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2024-56709DEBIAN-CVE-2024-56709
Published 29-12-2024Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2024-56709 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 26 · Related 24
DLA-4076-1MGASA-2025-0030MGASA-2025-0032RHSA-2025:20518SUSE-SU-2025:0289-1SUSE-SU-2025:0428-1

Timeline

  1. 29-12-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: check if iowq is killed before queuing task work can be executed after the task has gone through io_uring termination, whether it's the final task_work run or the fallback path. In this case, task work will find ->io_wq being already killed and null'ed, which is a problem if it then tries to forward the request to io_queue_iowq(). Make io_queue_iowq() fail requests in this case. Note that it also checks PF_KTHREAD, because the user can first close a DEFER_TASKRUN ring and shortly after kill the task, in which case ->iowq check would race.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu124 products
  • linuxAll versions (No fix recorded) | < 6.8.0-60.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1029.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 773af69121ecc6c53d192661af8d53bb3db028ae, < 534d59ab38010aada88390db65985e65d0de7d9e | ≥ 773af69121ecc6c53d192661af8d53bb3db028ae, < 2ca94c8de36091067b9ce7527ae8db3812d38781 | ≥ 773af69121ecc6c53d192661af8d53bb3db028ae, < 4f95a2186b7f2af09331e1e8069bcaf34fe019cf | ≥ 773af69121ecc6c53d192661af8d53bb3db028ae, < dbd2ca9367eb19bc5e269b8c58b0b1514ada9156 | 5.14
  • linux_kernelEOL≥ 5.14.1, < 6.1.122 | ≥ 6.2, < 6.6.68 | ≥ 6.7, < 6.12.7 | 5.14 | 5.14:rc4 | 5.14:rc5 | 5.14:rc6 | 5.14:rc7 | 6.13:rc1 | 6.13:rc2 | 6.13:rc3
Debian1 product
  • linux< 6.1.123-1 | All versions (No fix recorded)

3 vendors · 127 products

References

25 links
Show all 25 references