| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-58072: wifi: rtlwifi: remove unused check_buddy_priv |
| |
| 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. |
| |
| The Linux kernel CVE team has assigned CVE-2024-58072 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.10 with commit 26634c4b1868323f49f8cd24c3493b57819867fd and fixed in 5.4.291 with commit f801e754efa21bd61b3cc15ec7565696165b272f |
| Issue introduced in 3.10 with commit 26634c4b1868323f49f8cd24c3493b57819867fd and fixed in 5.10.235 with commit 1b9cbd8a9ae68b32099fbb03b2d5ffa0c5e0dcc9 |
| Issue introduced in 3.10 with commit 26634c4b1868323f49f8cd24c3493b57819867fd and fixed in 5.15.179 with commit 8e2fcc68fbaab3ad9f5671fee2be0956134b740a |
| Issue introduced in 3.10 with commit 26634c4b1868323f49f8cd24c3493b57819867fd and fixed in 6.1.129 with commit 1e39b0486cdb496cdfba3bc89886150e46acf6f4 |
| Issue introduced in 3.10 with commit 26634c4b1868323f49f8cd24c3493b57819867fd and fixed in 6.6.76 with commit 465d01ef6962b82b1f0ad1f3e58b398dbd35c1c1 |
| Issue introduced in 3.10 with commit 26634c4b1868323f49f8cd24c3493b57819867fd and fixed in 6.12.13 with commit 543e3e9f2e9e47ded774c74e680f28a0ca362aee |
| Issue introduced in 3.10 with commit 26634c4b1868323f49f8cd24c3493b57819867fd and fixed in 6.13.2 with commit 006e803af7408c3fc815b0654fc5ab43d34f0154 |
| Issue introduced in 3.10 with commit 26634c4b1868323f49f8cd24c3493b57819867fd and fixed in 6.14 with commit 2fdac64c3c35858aa8ac5caa70b232e03456e120 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-58072 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/net/wireless/realtek/rtlwifi/base.c |
| drivers/net/wireless/realtek/rtlwifi/base.h |
| drivers/net/wireless/realtek/rtlwifi/pci.c |
| drivers/net/wireless/realtek/rtlwifi/wifi.h |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| 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 |
