Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: sysfs: don't remove existing directory on update failure When sysfs_update_group() is called for a named group and create_files() fails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on the group directory. In the update path, kn was obtained via kernfs_find_and_get() and refers to a directory that already existed before this call. Removing it silently destroys a sysfs group that the caller did not create. Only remove the directory if we created it ourselves. On update failure the directory remains as it is left empty by remove_files() inside create_files(), but can be repopulated by a retry.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 before c5e125c828b701afaf7493b42a14aa89362ff36d; affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 before ccadd32cc1263802a5969c9efe0e96225450428c; affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a; affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 31527d80234caf83dc96ad478645e57df9de4472; affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 57b285e0368290aa55f79ba11419b96d0ebdb418; affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 48fa96538bd2868034d33429e4565fda384d0736; affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 708f6926f61f71e09b5e9fd668b9882ccd46e69f; affected c855cf2759d27142f771173d9fd8e7fdf9cf5138 before 237557b8a81ab948e8332f7c0058e758f081c0a3 |
| Linux / Linux | affected 4.19; unaffected 0 before 4.19; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.142 through 6.6.*; unaffected 6.12.92 through 6.12.*; unaffected 6.18.34 through 6.18.*; unaffected 7.0.11 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d
- https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c
- https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a
- https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472
- https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418
- https://git.kernel.org/stable/c/48fa96538bd2868034d33429e4565fda384d0736
- https://git.kernel.org/stable/c/708f6926f61f71e09b5e9fd668b9882ccd46e69f
- https://git.kernel.org/stable/c/237557b8a81ab948e8332f7c0058e758f081c0a3