| 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-2024-57936: RDMA/bnxt_re: Fix max SGEs for the Work Request |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| RDMA/bnxt_re: Fix max SGEs for the Work Request |
| |
| Gen P7 supports up to 13 SGEs for now. WQE software structure |
| can hold only 6 now. Since the max send sge is reported as |
| 13, the stack can give requests up to 13 SGEs. This is causing |
| traffic failures and system crashes. |
| |
| Use the define for max SGE supported for variable size. This |
| will work for both static and variable WQEs. |
| |
| The Linux kernel CVE team has assigned CVE-2024-57936 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.12 with commit 227f51743b61fe3f6fc481f0fb8086bf8c49b8c9 and fixed in 6.12.9 with commit 9a479088e0c8f6140b8c7752b563bc8c6c6dcc8c |
| Issue introduced in 6.12 with commit 227f51743b61fe3f6fc481f0fb8086bf8c49b8c9 and fixed in 6.13 with commit 79d330fbdffd8cee06d8bdf38d82cb62d8363a27 |
| |
| 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-2024-57936 |
| 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/hw/bnxt_re/qplib_fp.h |
| |
| |
| 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/3de1b50f055dc2ca7072a526cdda21f691c22dd9 |
| https://git.kernel.org/stable/c/9a479088e0c8f6140b8c7752b563bc8c6c6dcc8c |
| https://git.kernel.org/stable/c/79d330fbdffd8cee06d8bdf38d82cb62d8363a27 |
