| 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-2021-47570: staging: r8188eu: fix a memory leak in rtw_wx_read32() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| staging: r8188eu: fix a memory leak in rtw_wx_read32() |
| |
| Free "ptmp" before returning -EINVAL. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47570 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15 with commit 2b42bd58b32155a1be4dd78991845dec05aaef9e and fixed in 5.15.6 with commit c8d3775745adacf9784a7a80a82d047051752573 |
| Issue introduced in 5.15 with commit 2b42bd58b32155a1be4dd78991845dec05aaef9e and fixed in 5.16 with commit be4ea8f383551b9dae11b8dfff1f38b3b5436e9a |
| |
| 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-2021-47570 |
| 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/staging/r8188eu/os_dep/ioctl_linux.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/c8d3775745adacf9784a7a80a82d047051752573 |
| https://git.kernel.org/stable/c/be4ea8f383551b9dae11b8dfff1f38b3b5436e9a |
