| 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-2024-50062: RDMA/rtrs-srv: Avoid null pointer deref during path establishment |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| RDMA/rtrs-srv: Avoid null pointer deref during path establishment |
| |
| For RTRS path establishment, RTRS client initiates and completes con_num |
| of connections. After establishing all its connections, the information |
| is exchanged between the client and server through the info_req message. |
| During this exchange, it is essential that all connections have been |
| established, and the state of the RTRS srv path is CONNECTED. |
| |
| So add these sanity checks, to make sure we detect and abort process in |
| error scenarios to avoid null pointer deref. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50062 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.15.168 with commit 394b2f4d5e014820455af3eb5859eb328eaafcfd |
| Fixed in 6.1.113 with commit b5d4076664465487a9a3d226756995b12fb73d71 |
| Fixed in 6.6.57 with commit ccb8e44ae3e2391235f80ffc6be59bec6b889ead |
| Fixed in 6.11.4 with commit b720792d7e8515bc695752e0ed5884e2ea34d12a |
| Fixed in 6.12 with commit d0e62bf7b575fbfe591f6f570e7595dd60a2f5eb |
| |
| 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-2024-50062 |
| 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-srv.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/394b2f4d5e014820455af3eb5859eb328eaafcfd |
| https://git.kernel.org/stable/c/b5d4076664465487a9a3d226756995b12fb73d71 |
| https://git.kernel.org/stable/c/ccb8e44ae3e2391235f80ffc6be59bec6b889ead |
| https://git.kernel.org/stable/c/b720792d7e8515bc695752e0ed5884e2ea34d12a |
| https://git.kernel.org/stable/c/d0e62bf7b575fbfe591f6f570e7595dd60a2f5eb |
