| From bippy-7c5fe7eed585 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-2025-21901: RDMA/bnxt_re: Add sanity checks on rdev validity |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| RDMA/bnxt_re: Add sanity checks on rdev validity |
| |
| There is a possibility that ulp_irq_stop and ulp_irq_start |
| callbacks will be called when the device is in detached state. |
| This can cause a crash due to NULL pointer dereference as |
| the rdev is already freed. |
| |
| The Linux kernel CVE team has assigned CVE-2025-21901 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.12 with commit cc5b9b48d44756a87170f3901c6c2fd99e6b89b2 and fixed in 6.12.18 with commit aed1bc673907e3df372b317c10ff2f3582f8bf1a |
| Issue introduced in 6.12 with commit cc5b9b48d44756a87170f3901c6c2fd99e6b89b2 and fixed in 6.13.6 with commit 8cb0eef46d70a99c88c26a1addb7fd955242e0e6 |
| Issue introduced in 6.12 with commit cc5b9b48d44756a87170f3901c6c2fd99e6b89b2 and fixed in 6.14 with commit f0df225d12fcb049429fb5bf5122afe143c2dd15 |
| |
| 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-2025-21901 |
| 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/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/aed1bc673907e3df372b317c10ff2f3582f8bf1a |
| https://git.kernel.org/stable/c/8cb0eef46d70a99c88c26a1addb7fd955242e0e6 |
| https://git.kernel.org/stable/c/f0df225d12fcb049429fb5bf5122afe143c2dd15 |
