CVE-2024-26993

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-26993
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26993.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-26993
Downstream
Related
Published
2024-05-01T05:28:02.462Z
Modified
2025-11-28T02:33:57.618320Z
Summary
fs: sysfs: Fix reference leak in sysfs_break_active_protection()
Details

In the Linux kernel, the following vulnerability has been resolved:

fs: sysfs: Fix reference leak in sysfsbreakactive_protection()

The sysfsbreakactiveprotection() routine has an obvious reference leak in its error path. If the call to kernfsfindandget() fails then kn will be NULL, so the companion sysfsunbreakactive_protection() routine won't get called (and would only cause an access violation by trying to dereference kn->parent if it was called). As a result, the reference to kobj acquired at the start of the function will never be released.

Fix the leak by adding an explicit kobject_put() call when kn is NULL.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26993.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2afc9166f79b8f6da5f347f48515215ceee4ae37
Fixed
f28bba37fe244889b81bb5c508d3f6e5c6e342c5
Fixed
57baab0f376bec8f54b0fe6beb8f77a57c228063
Fixed
84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17
Fixed
43f00210cb257bcb0387e8caeb4b46375d67f30c
Fixed
5d43e072285e81b0b63cee7189b3357c7768a43b
Fixed
ac107356aabc362aaeb77463e814fc067a5d3957
Fixed
a4c99b57d43bab45225ba92d574a8683f9edc8e4
Fixed
a90bca2228c0646fc29a72689d308e5fe03e6d78
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
e8a37b2fd5b5087bec6cbbf6946ee3caa712953b
Last affected
a6abc93760dd07fcd29760b70e6e7520f22cb288
Last affected
461a6385e58e8247e6ba2005aa5d1b8d980ee4a2
Last affected
8a5e02a0f46ea33ed19e48e096a8e8d28e73d10a
Last affected
c984f4d1d40a2f349503b3faf946502ccbf02f9f
Last affected
807d1d299a04e9ad9a9dac55419c1137a105254b

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.19.0
Fixed
4.19.313
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.275
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.216
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.157
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.88
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.29
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.8.8