Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: regmap: set debugfs_name to NULL after it is freed There is a upstream commit cffa4b2122f5("regmap:debugfs: Fix a memory leak when calling regmap_attach_dev") that adds a if condition when create name for debugfs_name. With below function invoking logical, debugfs_name is freed in regmap_debugfs_exit(), but it is not created again because of the if condition introduced by above commit. regmap_reinit_cache() regmap_debugfs_exit() ... regmap_debugfs_init() So, set debugfs_name to NULL after it is freed.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5b654b03007917f3f1015b2a5c288c1ea6ae8f65 before 2dc1554d5f0fdaf47cc5bea442b84b9226fea867; affected 480c5e9c7e4c76c01d5f1f7b73832d7b77e6b427 before d8897f7b2283a500666c85ef06e820df38ed7b52; affected c9698380b01aed3281160d3ab25749b57d6913b8 before eb949f891226c012138ffd9df90d1e509f428ae6; affected cffa4b2122f5f3e53cf3d529bbc74651f95856d5 before c764e375ae647832de1ee73d43a4bb3ef8a8f43d; affected cffa4b2122f5f3e53cf3d529bbc74651f95856d5 before b9e569ae1da3a113b3acee8703c94777fd20938a; affected cffa4b2122f5f3e53cf3d529bbc74651f95856d5 before e41a962f82e7afb5b1ee644f48ad0b3aee656268; affected 4.19.168 before 4.19.191; affected 5.4.90 before 5.4.119; affected 5.10.8 before 5.10.37 |
| Linux / Linux | affected 5.11; unaffected 0 before 5.11; unaffected 4.19.191 through 4.19.*; unaffected 5.4.119 through 5.4.*; unaffected 5.10.37 through 5.10.*; unaffected 5.11.21 through 5.11.*; unaffected 5.12.4 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2dc1554d5f0fdaf47cc5bea442b84b9226fea867
- https://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52
- https://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6
- https://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d
- https://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a
- https://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/2dc1554d5f0fdaf47cc5bea442b84b9226fea867
- https://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52
- https://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6
- https://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d
- https://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a
- https://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268