Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2afc9166f79b8f6da5f347f48515215ceee4ae37 before f28bba37fe244889b81bb5c508d3f6e5c6e342c5; affected 2afc9166f79b8f6da5f347f48515215ceee4ae37 before 57baab0f376bec8f54b0fe6beb8f77a57c228063; affected 2afc9166f79b8f6da5f347f48515215ceee4ae37 before 84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17; affected 2afc9166f79b8f6da5f347f48515215ceee4ae37 before 43f00210cb257bcb0387e8caeb4b46375d67f30c; affected 2afc9166f79b8f6da5f347f48515215ceee4ae37 before 5d43e072285e81b0b63cee7189b3357c7768a43b; affected 2afc9166f79b8f6da5f347f48515215ceee4ae37 before ac107356aabc362aaeb77463e814fc067a5d3957; affected 2afc9166f79b8f6da5f347f48515215ceee4ae37 before a4c99b57d43bab45225ba92d574a8683f9edc8e4; affected 2afc9166f79b8f6da5f347f48515215ceee4ae37 before a90bca2228c0646fc29a72689d308e5fe03e6d78; affected e8a37b2fd5b5087bec6cbbf6946ee3caa712953b; affected a6abc93760dd07fcd29760b70e6e7520f22cb288; affected 461a6385e58e8247e6ba2005aa5d1b8d980ee4a2; affected 8a5e02a0f46ea33ed19e48e096a8e8d28e73d10a; affected c984f4d1d40a2f349503b3faf946502ccbf02f9f; affected 807d1d299a04e9ad9a9dac55419c1137a105254b; affected 3.16.62 before 3.17; affected 3.18.121 before 3.19; affected 4.4.154 before 4.5; affected 4.9.125 before 4.10; affected 4.14.68 before 4.15; affected 4.18.6 before 4.19 |
| Linux / Linux | affected 4.19; unaffected 0 before 4.19; unaffected 4.19.313 through 4.19.*; unaffected 5.4.275 through 5.4.*; unaffected 5.10.216 through 5.10.*; unaffected 5.15.157 through 5.15.*; unaffected 6.1.88 through 6.1.*; unaffected 6.6.29 through 6.6.*; unaffected 6.8.8 through 6.8.*; unaffected 6.9 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f28bba37fe244889b81bb5c508d3f6e5c6e342c5
- https://git.kernel.org/stable/c/57baab0f376bec8f54b0fe6beb8f77a57c228063
- https://git.kernel.org/stable/c/84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17
- https://git.kernel.org/stable/c/43f00210cb257bcb0387e8caeb4b46375d67f30c
- https://git.kernel.org/stable/c/5d43e072285e81b0b63cee7189b3357c7768a43b
- https://git.kernel.org/stable/c/ac107356aabc362aaeb77463e814fc067a5d3957
- https://git.kernel.org/stable/c/a4c99b57d43bab45225ba92d574a8683f9edc8e4
- https://git.kernel.org/stable/c/a90bca2228c0646fc29a72689d308e5fe03e6d78
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/f28bba37fe244889b81bb5c508d3f6e5c6e342c5
- https://git.kernel.org/stable/c/57baab0f376bec8f54b0fe6beb8f77a57c228063
- https://git.kernel.org/stable/c/84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17
- https://git.kernel.org/stable/c/43f00210cb257bcb0387e8caeb4b46375d67f30c
- https://git.kernel.org/stable/c/5d43e072285e81b0b63cee7189b3357c7768a43b
- https://git.kernel.org/stable/c/ac107356aabc362aaeb77463e814fc067a5d3957
- https://git.kernel.org/stable/c/a4c99b57d43bab45225ba92d574a8683f9edc8e4
- https://git.kernel.org/stable/c/a90bca2228c0646fc29a72689d308e5fe03e6d78
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
No English description supplied.