5.5

CVE-2024-56584: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-56584DEBIAN-CVE-2024-56584
Published 27-12-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-56584 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.8% 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
0.24%
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 36 · Related 35
DLA-4076-1MGASA-2025-0030MGASA-2025-0032SUSE-SU-2025:0289-1SUSE-SU-2025:0428-1SUSE-SU-2025:0499-1

Timeline

  1. 27-12-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/tctx: work around xa_store() allocation error issue syzbot triggered the following WARN_ON: WARNING: CPU: 0 PID: 16 at io_uring/tctx.c:51 __io_uring_free+0xfa/0x140 io_uring/tctx.c:51 which is the WARN_ON_ONCE(!xa_empty(&tctx->xa)); sanity check in __io_uring_free() when a io_uring_task is going through its final put. The syzbot test case includes injecting memory allocation failures, and it very much looks like xa_store() can fail one of its memory allocations and end up with ->head being non-NULL even though no entries exist in the xarray. Until this issue gets sorted out, work around it by attempting to iterate entries in our xarray, and WARN_ON_ONCE() if one is found.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.24%

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

Affected systems

Ubuntu136 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-58.60
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1027.29
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 2b188cc1bb857a9d4701ae59aa7768b5124e262e, < e05c070b401f6365c503e2b59f091331965c4fb9 | ≥ 2b188cc1bb857a9d4701ae59aa7768b5124e262e, < 3a84fa784710990964c1e35df743851ab2863898 | ≥ 2b188cc1bb857a9d4701ae59aa7768b5124e262e, < 94ad56f61b873ffeebcc620d451eacfbdf9d40f0 | ≥ 2b188cc1bb857a9d4701ae59aa7768b5124e262e, < 42882b583095dcf747da6e3af1daeff40e27033e | ≥ 2b188cc1bb857a9d4701ae59aa7768b5124e262e, < d5b2ddf1f90c7248eff9630b95895c8950f2f36d | ≥ 2b188cc1bb857a9d4701ae59aa7768b5124e262e, < 7eb75ce7527129d7f1fee6951566af409a37a1c4 | 5.1
  • linux_kernel≥ 5.1, < 6.1.120 | ≥ 6.2, < 6.6.66 | ≥ 6.7, < 6.12.5
Debian1 product
  • linux< 6.1.123-1 | < 6.12.5-1

3 vendors · 139 products

References

38 links
Show all 38 references