| 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-2022-49384: md: fix double free of io_acct_set bioset |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| md: fix double free of io_acct_set bioset |
| |
| Now io_acct_set is alloc and free in personality. Remove the codes that |
| free io_acct_set in md_free and md_stop. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49384 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15.17 with commit 00e3d58f50a875343124bcf5a9637520a492b0d1 and fixed in 5.15.46 with commit 36a2fc44c574a59ee3b5e2cb327182f227b2b07e |
| Issue introduced in 5.17 with commit 0c031fd37f69deb0cd8c43bbfcfccd62ebd7e952 and fixed in 5.17.14 with commit f99d5b5dc8a42c807b5f1176b925aa45d61962ab |
| Issue introduced in 5.17 with commit 0c031fd37f69deb0cd8c43bbfcfccd62ebd7e952 and fixed in 5.18.3 with commit ea7d7bd90079d96f9c86bdaf0b106e0cd2a70661 |
| Issue introduced in 5.17 with commit 0c031fd37f69deb0cd8c43bbfcfccd62ebd7e952 and fixed in 5.19 with commit 42b805af102471f53e3c7867b8c2b502ea4eef7e |
| Issue introduced in 5.16.3 with commit 92053ae0398a58c6914e807d5e070297ba8cfe88 |
| |
| 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-2022-49384 |
| 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/md/md.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/36a2fc44c574a59ee3b5e2cb327182f227b2b07e |
| https://git.kernel.org/stable/c/f99d5b5dc8a42c807b5f1176b925aa45d61962ab |
| https://git.kernel.org/stable/c/ea7d7bd90079d96f9c86bdaf0b106e0cd2a70661 |
| https://git.kernel.org/stable/c/42b805af102471f53e3c7867b8c2b502ea4eef7e |
