| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-49811: drbd: use after free in drbd_create_device() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drbd: use after free in drbd_create_device() |
| |
| The drbd_destroy_connection() frees the "connection" so use the _safe() |
| iterator to prevent a use after free. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49811 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.15 with commit b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 and fixed in 4.14.300 with commit fc1897f16ebcfd22364f2afcc27f53a740f3bc7a |
| Issue introduced in 3.15 with commit b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 and fixed in 4.19.267 with commit bf47ca1b35fc1f55091ffaff5fbe41ea0c6f59a1 |
| Issue introduced in 3.15 with commit b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 and fixed in 5.4.225 with commit 813a8dd9c45fd46f5cbbfbedf0791afa7740ccf5 |
| Issue introduced in 3.15 with commit b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 and fixed in 5.10.156 with commit 9ed51414aef6e59e832e2960f10766dce2d5b1a1 |
| Issue introduced in 3.15 with commit b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 and fixed in 5.15.80 with commit 7d93417d596402ddd46bd76c721f205d09d0d025 |
| Issue introduced in 3.15 with commit b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 and fixed in 6.0.10 with commit c2a00b149836d60c222930bbea6b2139caf34d4f |
| Issue introduced in 3.15 with commit b6f85ef9538b2111a8ba0bbfae9aaebabfc94961 and fixed in 6.1 with commit a7a1598189228b5007369a9622ccdf587be0730f |
| |
| 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-2022-49811 |
| 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/block/drbd/drbd_main.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/fc1897f16ebcfd22364f2afcc27f53a740f3bc7a |
| https://git.kernel.org/stable/c/bf47ca1b35fc1f55091ffaff5fbe41ea0c6f59a1 |
| https://git.kernel.org/stable/c/813a8dd9c45fd46f5cbbfbedf0791afa7740ccf5 |
| https://git.kernel.org/stable/c/9ed51414aef6e59e832e2960f10766dce2d5b1a1 |
| https://git.kernel.org/stable/c/7d93417d596402ddd46bd76c721f205d09d0d025 |
| https://git.kernel.org/stable/c/c2a00b149836d60c222930bbea6b2139caf34d4f |
| https://git.kernel.org/stable/c/a7a1598189228b5007369a9622ccdf587be0730f |
