CVE-2024-26993

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Source
https://cve.org/CVERecord?id=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
2026-03-13T07:52:02.975278Z
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 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26993.json"
}
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

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26993.json"