CVE-2024-42307: linux NULL Pointer Dereference
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.
Advisory lineage
Upstream 0 · Downstream 18 · Related 15Timeline
- 17-08-2024PublishedVulnerability first disclosed.
- 23-05-2026Last 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- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected 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