Answer in brief
CVE-2024-26993 records a Unknown severity vulnerability in fs: sysfs: Fix reference leak in sysfs_break_active_protection(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=2afc9166f79b8f6da5f347f48515215ceee4ae37 <f28bba37fe244889b81bb5c508d3f6e5c6e342c5 || >=2afc9166f79b8f6da5f347f48515215ceee4ae37 <57baab0f376bec8f54b0fe6beb8f77a57c228063 || >=2afc9166f79b8f6da5f347f48515215ceee4ae37 <84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17 || >=2afc9166f79b8f6da5f347f48515215ceee4ae37 <43f00210cb257bcb0387e8caeb4b46375d67f30c || >=2afc9166f79b8f6da5f347f48515215ceee4ae37 <5d43e072285e81b0b63cee7189b3357c7768a43b || >=2afc9166f79b8f6da5f347f48515215ceee4ae37 <ac107356aabc362aaeb77463e814fc067a5d3957 || >=2afc9166f79b8f6da5f347f48515215ceee4ae37 <a4c99b57d43bab45225ba92d574a8683f9edc8e4 || >=2afc9166f79b8f6da5f347f48515215ceee4ae37 <a90bca2228c0646fc29a72689d308e5fe03e6d78 || e8a37b2fd5b5087bec6cbbf6946ee3caa712953b || a6abc93760dd07fcd29760b70e6e7520f22cb288 || 461a6385e58e8247e6ba2005aa5d1b8d980ee4a2 || 8a5e02a0f46ea33ed19e48e096a8e8d28e73d10a || c984f4d1d40a2f349503b3faf946502ccbf02f9f || 807d1d299a04e9ad9a9dac55419c1137a105254b || >=3.16.62 <3.17 || >=3.18.121 <3.19 || >=4.4.154 <4.5 || >=4.9.125 <4.10 || >=4.14.68 <4.15 || >=4.18.6 <4.19 | f28bba37fe244889b81bb5c508d3f6e5c6e342c5, 57baab0f376bec8f54b0fe6beb8f77a57c228063, 84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17, 43f00210cb257bcb0387e8caeb4b46375d67f30c, 5d43e072285e81b0b63cee7189b3357c7768a43b, ac107356aabc362aaeb77463e814fc067a5d3957, a4c99b57d43bab45225ba92d574a8683f9edc8e4, a90bca2228c0646fc29a72689d308e5fe03e6d78, 3.17, 3.19, 4.5, 4.10, 4.15, 4.19 |
| Linux/Linuxgeneric | 4.19 | Not reported |
| Siemens/RUGGEDCOM RST2428Pgeneric | >=0 <V3.1 | V3.1 |
| Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 familygeneric | >=0 <V3.1 | V3.1 |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <V1.1.1 | V1.1.1 |
Published upstream
May 1, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.