CVE-2024-26993
Linux Kernel sysfs Reference Leak Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: fs: sysfs: Fix reference leak in sysfs_break_active_protection() The sysfs_break_active_protection() routine has an obvious reference leak in its error path. If the call to kernfs_find_and_get() fails then kn will be NULL, so the companion sysfs_unbreak_active_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.
INFO
Published Date :
May 1, 2024, 6:15 a.m.
Last Modified :
Dec. 23, 2024, 8:43 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the affected Linux kernel packages.
- Reboot the system to apply the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-26993.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-26993 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-26993
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-26993 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-26993 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 23, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.16.62 up to (excluding) 3.17 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.18.121 up to (excluding) 3.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.4.154 up to (excluding) 4.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.125 up to (excluding) 4.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.68 up to (excluding) 4.15 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.18.6 up to (excluding) 4.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19 up to (excluding) 5.15.157 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.88 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.29 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.8.8 *cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/43f00210cb257bcb0387e8caeb4b46375d67f30c No Types Assigned https://git.kernel.org/stable/c/43f00210cb257bcb0387e8caeb4b46375d67f30c Patch Changed Reference Type https://git.kernel.org/stable/c/43f00210cb257bcb0387e8caeb4b46375d67f30c No Types Assigned https://git.kernel.org/stable/c/43f00210cb257bcb0387e8caeb4b46375d67f30c Patch Changed Reference Type https://git.kernel.org/stable/c/57baab0f376bec8f54b0fe6beb8f77a57c228063 No Types Assigned https://git.kernel.org/stable/c/57baab0f376bec8f54b0fe6beb8f77a57c228063 Patch Changed Reference Type https://git.kernel.org/stable/c/57baab0f376bec8f54b0fe6beb8f77a57c228063 No Types Assigned https://git.kernel.org/stable/c/57baab0f376bec8f54b0fe6beb8f77a57c228063 Patch Changed Reference Type https://git.kernel.org/stable/c/5d43e072285e81b0b63cee7189b3357c7768a43b No Types Assigned https://git.kernel.org/stable/c/5d43e072285e81b0b63cee7189b3357c7768a43b Patch Changed Reference Type https://git.kernel.org/stable/c/5d43e072285e81b0b63cee7189b3357c7768a43b No Types Assigned https://git.kernel.org/stable/c/5d43e072285e81b0b63cee7189b3357c7768a43b Patch Changed Reference Type https://git.kernel.org/stable/c/84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17 No Types Assigned https://git.kernel.org/stable/c/84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17 Patch Changed Reference Type https://git.kernel.org/stable/c/84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17 No Types Assigned https://git.kernel.org/stable/c/84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17 Patch Changed Reference Type https://git.kernel.org/stable/c/a4c99b57d43bab45225ba92d574a8683f9edc8e4 No Types Assigned https://git.kernel.org/stable/c/a4c99b57d43bab45225ba92d574a8683f9edc8e4 Patch Changed Reference Type https://git.kernel.org/stable/c/a4c99b57d43bab45225ba92d574a8683f9edc8e4 No Types Assigned https://git.kernel.org/stable/c/a4c99b57d43bab45225ba92d574a8683f9edc8e4 Patch Changed Reference Type https://git.kernel.org/stable/c/a90bca2228c0646fc29a72689d308e5fe03e6d78 No Types Assigned https://git.kernel.org/stable/c/a90bca2228c0646fc29a72689d308e5fe03e6d78 Patch Changed Reference Type https://git.kernel.org/stable/c/a90bca2228c0646fc29a72689d308e5fe03e6d78 No Types Assigned https://git.kernel.org/stable/c/a90bca2228c0646fc29a72689d308e5fe03e6d78 Patch Changed Reference Type https://git.kernel.org/stable/c/ac107356aabc362aaeb77463e814fc067a5d3957 No Types Assigned https://git.kernel.org/stable/c/ac107356aabc362aaeb77463e814fc067a5d3957 Patch Changed Reference Type https://git.kernel.org/stable/c/ac107356aabc362aaeb77463e814fc067a5d3957 No Types Assigned https://git.kernel.org/stable/c/ac107356aabc362aaeb77463e814fc067a5d3957 Patch Changed Reference Type https://git.kernel.org/stable/c/f28bba37fe244889b81bb5c508d3f6e5c6e342c5 No Types Assigned https://git.kernel.org/stable/c/f28bba37fe244889b81bb5c508d3f6e5c6e342c5 Patch Changed Reference Type https://git.kernel.org/stable/c/f28bba37fe244889b81bb5c508d3f6e5c6e342c5 No Types Assigned https://git.kernel.org/stable/c/f28bba37fe244889b81bb5c508d3f6e5c6e342c5 Patch Changed Reference Type https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html No Types Assigned https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html No Types Assigned https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Mailing List, Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/43f00210cb257bcb0387e8caeb4b46375d67f30c Added Reference https://git.kernel.org/stable/c/57baab0f376bec8f54b0fe6beb8f77a57c228063 Added Reference https://git.kernel.org/stable/c/5d43e072285e81b0b63cee7189b3357c7768a43b Added Reference https://git.kernel.org/stable/c/84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17 Added Reference https://git.kernel.org/stable/c/a4c99b57d43bab45225ba92d574a8683f9edc8e4 Added Reference https://git.kernel.org/stable/c/a90bca2228c0646fc29a72689d308e5fe03e6d78 Added Reference https://git.kernel.org/stable/c/ac107356aabc362aaeb77463e814fc067a5d3957 Added Reference https://git.kernel.org/stable/c/f28bba37fe244889b81bb5c508d3f6e5c6e342c5 Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 27, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 03, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/f28bba37fe244889b81bb5c508d3f6e5c6e342c5 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/57baab0f376bec8f54b0fe6beb8f77a57c228063 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17 [No types assigned] Removed Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ Removed Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/ Removed Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 03, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ [No types assigned] Added Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/ [No types assigned] Added Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 01, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: fs: sysfs: Fix reference leak in sysfs_break_active_protection() The sysfs_break_active_protection() routine has an obvious reference leak in its error path. If the call to kernfs_find_and_get() fails then kn will be NULL, so the companion sysfs_unbreak_active_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. Added Reference kernel.org https://git.kernel.org/stable/c/43f00210cb257bcb0387e8caeb4b46375d67f30c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/5d43e072285e81b0b63cee7189b3357c7768a43b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ac107356aabc362aaeb77463e814fc067a5d3957 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a4c99b57d43bab45225ba92d574a8683f9edc8e4 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a90bca2228c0646fc29a72689d308e5fe03e6d78 [No types assigned]