| 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-2024-47695: RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds |
| |
| In the function init_conns(), after the create_con() and create_cm() for |
| loop if something fails. In the cleanup for loop after the destroy tag, we |
| access out of bound memory because cid is set to clt_path->s.con_num. |
| |
| This commits resets the cid to clt_path->s.con_num - 1, to stay in bounds |
| in the cleanup loop later. |
| |
| The Linux kernel CVE team has assigned CVE-2024-47695 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.8 with commit 6a98d71daea186247005099758af549e6afdd244 and fixed in 5.15.168 with commit 0429a4e972082e3a2351da414b1c017daaf8aed2 |
| Issue introduced in 5.8 with commit 6a98d71daea186247005099758af549e6afdd244 and fixed in 6.1.113 with commit 5ac73f8191f3de41fef4f934d84d97f3aadb301f |
| Issue introduced in 5.8 with commit 6a98d71daea186247005099758af549e6afdd244 and fixed in 6.6.54 with commit 01b9be936ee8839ab9f83a7e84ee02ac6c8303c4 |
| Issue introduced in 5.8 with commit 6a98d71daea186247005099758af549e6afdd244 and fixed in 6.10.13 with commit 1c50e0265fa332c94a4a182e4efa0fc70d8fad94 |
| Issue introduced in 5.8 with commit 6a98d71daea186247005099758af549e6afdd244 and fixed in 6.11.2 with commit c8b7f3d9fada0d4b4b7db86bf7345cd61f1d972e |
| Issue introduced in 5.8 with commit 6a98d71daea186247005099758af549e6afdd244 and fixed in 6.12 with commit 3e4289b29e216a55d08a89e126bc0b37cbad9f38 |
| |
| 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-2024-47695 |
| 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/infiniband/ulp/rtrs/rtrs-clt.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/0429a4e972082e3a2351da414b1c017daaf8aed2 |
| https://git.kernel.org/stable/c/5ac73f8191f3de41fef4f934d84d97f3aadb301f |
| https://git.kernel.org/stable/c/01b9be936ee8839ab9f83a7e84ee02ac6c8303c4 |
| https://git.kernel.org/stable/c/1c50e0265fa332c94a4a182e4efa0fc70d8fad94 |
| https://git.kernel.org/stable/c/c8b7f3d9fada0d4b4b7db86bf7345cd61f1d972e |
| https://git.kernel.org/stable/c/3e4289b29e216a55d08a89e126bc0b37cbad9f38 |
