5.5

CVE-2024-44958: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-44958DEBIAN-CVE-2024-44958
Published 04-09-2024Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2024-44958 is a medium (CVSS 5.5) 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 listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 27 · Related 23
DLA-4008-1MGASA-2024-0309MGASA-2024-0310RHSA-2025:6966SUSE-SU-2024:3983-1SUSE-SU-2024:3984-1

Timeline

  1. 04-09-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: sched/smt: Fix unbalance sched_smt_present dec/inc I got the following warn report while doing stress test: jump label: negative count! WARNING: CPU: 3 PID: 38 at kernel/jump_label.c:263 static_key_slow_try_dec+0x9d/0xb0 Call Trace: <TASK> __static_key_slow_dec_cpuslocked+0x16/0x70 sched_cpu_deactivate+0x26e/0x2a0 cpuhp_invoke_callback+0x3ad/0x10d0 cpuhp_thread_fun+0x3f5/0x680 smpboot_thread_fn+0x56d/0x8d0 kthread+0x309/0x400 ret_from_fork+0x41/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> Because when cpuset_cpu_inactive() fails in sched_cpu_deactivate(), the cpu offline failed, but sched_smt_present is decremented before calling sched_cpu_deactivate(), it leads to unbalanced dec/inc, so fix it by incrementing sched_smt_present in the error path.

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

0.00 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

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

Ubuntu128 products
  • linuxAll versions (No fix recorded) | < 5.15.0-125.135 | < 6.8.0-50.51
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1072.78 | < 6.8.0-1020.22
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c5511d03ec090980732e929c318a7a6374b5550e, < 2a3548c7ef2e135aee40e7e5e44e7d11b893e7c4 | ≥ c5511d03ec090980732e929c318a7a6374b5550e, < 2cf7665efe451e48d27953e6b5bc627d518c902b | ≥ c5511d03ec090980732e929c318a7a6374b5550e, < 65727331b60197b742089855ac09464c22b96f66 | ≥ c5511d03ec090980732e929c318a7a6374b5550e, < d0c87a3c6be10a57aa3463c32c3fc6b2a47c3dab | ≥ c5511d03ec090980732e929c318a7a6374b5550e, < e22f910a26cc2a3ac9c66b8e935ef2a7dd881117 | 01659361c63fdc91c0af239d08cdd211d590a656 | a2c094816f894b7a265851fad858e994fa0f78b3 | ≥ 4.14.86, < 4.15 | ≥ 4.19.7, < 4.20 | 4.20
  • linux_kernel≥ 4.14.86, < 4.15 | ≥ 4.19.7, < 4.20 | ≥ 4.20, < 5.15.165 | ≥ 5.16, < 6.1.105 | ≥ 6.2, < 6.6.46 | ≥ 6.7, < 6.10.5 | 6.11:rc1
Debian1 product
  • linux< 6.1.106-1 | < 6.10.6-1

3 vendors · 131 products

References

21 links
Show all 21 references