Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: rtlwifi: remove unused check_buddy_priv Commit 2461c7d60f9f ("rtlwifi: Update header file") introduced a global list of private data structures. Later on, commit 26634c4b1868 ("rtlwifi Modify existing bits to match vendor version 2013.02.07") started adding the private data to that list at probe time and added a hook, check_buddy_priv to find the private data from a similar device. However, that function was never used. Besides, though there is a lock for that list, it is never used. And when the probe fails, the private data is never removed from the list. This would cause a second probe to access freed memory. Remove the unused hook, structures and members, which will prevent the potential race condition on the list and its corruption during a second probe when probe fails.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 26634c4b1868323f49f8cd24c3493b57819867fd before f801e754efa21bd61b3cc15ec7565696165b272f; affected 26634c4b1868323f49f8cd24c3493b57819867fd before 1b9cbd8a9ae68b32099fbb03b2d5ffa0c5e0dcc9; affected 26634c4b1868323f49f8cd24c3493b57819867fd before 8e2fcc68fbaab3ad9f5671fee2be0956134b740a; affected 26634c4b1868323f49f8cd24c3493b57819867fd before 1e39b0486cdb496cdfba3bc89886150e46acf6f4; affected 26634c4b1868323f49f8cd24c3493b57819867fd before 465d01ef6962b82b1f0ad1f3e58b398dbd35c1c1; affected 26634c4b1868323f49f8cd24c3493b57819867fd before 543e3e9f2e9e47ded774c74e680f28a0ca362aee; affected 26634c4b1868323f49f8cd24c3493b57819867fd before 006e803af7408c3fc815b0654fc5ab43d34f0154; affected 26634c4b1868323f49f8cd24c3493b57819867fd before 2fdac64c3c35858aa8ac5caa70b232e03456e120 |
| Linux / Linux | affected 3.10; unaffected 0 before 3.10; unaffected 5.4.291 through 5.4.*; unaffected 5.10.235 through 5.10.*; unaffected 5.15.179 through 5.15.*; unaffected 6.1.129 through 6.1.*; unaffected 6.6.76 through 6.6.*; unaffected 6.12.13 through 6.12.*; unaffected 6.13.2 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f801e754efa21bd61b3cc15ec7565696165b272f
- https://git.kernel.org/stable/c/1b9cbd8a9ae68b32099fbb03b2d5ffa0c5e0dcc9
- https://git.kernel.org/stable/c/8e2fcc68fbaab3ad9f5671fee2be0956134b740a
- https://git.kernel.org/stable/c/1e39b0486cdb496cdfba3bc89886150e46acf6f4
- https://git.kernel.org/stable/c/465d01ef6962b82b1f0ad1f3e58b398dbd35c1c1
- https://git.kernel.org/stable/c/543e3e9f2e9e47ded774c74e680f28a0ca362aee
- https://git.kernel.org/stable/c/006e803af7408c3fc815b0654fc5ab43d34f0154
- https://git.kernel.org/stable/c/2fdac64c3c35858aa8ac5caa70b232e03456e120
ADP enrichment
No English description supplied.
No English description supplied.