| 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-2022-49231: rtw88: fix memory overrun and memory leak during hw_scan |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| rtw88: fix memory overrun and memory leak during hw_scan |
| |
| Previously we allocated less memory than actual required, overwrite |
| to the buffer causes the mm module to complaint and raise access |
| violation faults. Along with potential memory leaks when returned |
| early. Fix these by passing the correct size and proper deinit flow. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49231 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.17 with commit 10d162b2ed395e69720926b4f8d87f1f25ca920f and fixed in 5.17.2 with commit ec5da191bfcd5fd22b95459b623694f66c1cc10b |
| Issue introduced in 5.17 with commit 10d162b2ed395e69720926b4f8d87f1f25ca920f and fixed in 5.18 with commit d95984b5580dcb8b1c0036577c52b609990a1dab |
| |
| 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-2022-49231 |
| 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/rtw88/fw.c |
| |
| |
| 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/ec5da191bfcd5fd22b95459b623694f66c1cc10b |
| https://git.kernel.org/stable/c/d95984b5580dcb8b1c0036577c52b609990a1dab |
