Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
26634c4b1868323f49f8cd24c3493b57819867fd to < f801e754efa21bd61b3cc15ec7565696165b272faffected26634c4b1868323f49f8cd24c3493b57819867fd to < 1b9cbd8a9ae68b32099fbb03b2d5ffa0c5e0dcc9affected26634c4b1868323f49f8cd24c3493b57819867fd to < 8e2fcc68fbaab3ad9f5671fee2be0956134b740aaffected26634c4b1868323f49f8cd24c3493b57819867fd to < 1e39b0486cdb496cdfba3bc89886150e46acf6f4affected26634c4b1868323f49f8cd24c3493b57819867fd to < 465d01ef6962b82b1f0ad1f3e58b398dbd35c1c1affected26634c4b1868323f49f8cd24c3493b57819867fd to < 543e3e9f2e9e47ded774c74e680f28a0ca362aeeaffected26634c4b1868323f49f8cd24c3493b57819867fd to < 006e803af7408c3fc815b0654fc5ab43d34f0154affected26634c4b1868323f49f8cd24c3493b57819867fd to < 2fdac64c3c35858aa8ac5caa70b232e03456e120affected
Linux Linux
Default version status: affected
3.10affected0 to < 3.10unaffected5.4.291 to ≤ 5.4.*unaffected5.10.235 to ≤ 5.10.*unaffected5.15.179 to ≤ 5.15.*unaffected6.1.129 to ≤ 6.1.*unaffected6.6.76 to ≤ 6.6.*unaffected6.12.13 to ≤ 6.12.*unaffected6.13.2 to ≤ 6.13.*unaffected6.14 to ≤ *unaffected
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 ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗