5.5

CVE-2024-42307: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-42307DEBIAN-CVE-2024-42307
Published 17-08-2024Last modified 23-05-2026

Vulnerability summary

CVE-2024-42307 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.5% 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 18 · Related 15

Timeline

  1. 17-08-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path Dan Carpenter reported a Smack static checker warning: fs/smb/client/cifsfs.c:1981 init_cifs() error: we previously assumed 'serverclose_wq' could be null (see line 1895) The patch which introduced the serverclose workqueue used the wrong oredering in error paths in init_cifs() for freeing it on errors.

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 21-09-2026

21-09-202621-10-2026
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

Affected systems

Ubuntu92 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≥ 8c99dfb49bdc17edffc7ff3d46b400c8c291686c, < 6018971710fdc7739f8655c1540832b4bb903671 | ≥ 6f17163b9339fac92023a1d9bef22128db3b9a4b, < 160235efb4f9b55212dedff5de0094c606c4b303 | ≥ 173217bd73365867378b5e75a86f0049e1069ee8, < 3739d711246d8fbc95ff73dbdace9741cdce4777 | ≥ 173217bd73365867378b5e75a86f0049e1069ee8, < 193cc89ea0ca1da311877d2b4bb5e9f03bcc82a2 | 40a5d14c9d3b585d55d3209fb5efe202dcaac926 | ≥ 6.1.85, < 6.1.103 | ≥ 6.6.26, < 6.6.44 | ≥ 6.8.5, < 6.9 | 6.9
  • linux_kernel≥ 6.1.85, < 6.1.103 | ≥ 6.6.26, < 6.6.44 | ≥ 6.8.5, < 6.10.3
Debian1 product
  • linux< 6.1.106-1 | < 6.10.3-1

3 vendors · 95 products

References

14 links
Show all 14 references