| From bippy-1.2.0 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-2025-40325: md/raid10: wait barrier before returning discard request with REQ_NOWAIT |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| md/raid10: wait barrier before returning discard request with REQ_NOWAIT |
| |
| raid10_handle_discard should wait barrier before returning a discard bio |
| which has REQ_NOWAIT. And there is no need to print warning calltrace |
| if a discard bio has REQ_NOWAIT flag. Quality engineer usually checks |
| dmesg and reports error if dmesg has warning/error calltrace. |
| |
| The Linux kernel CVE team has assigned CVE-2025-40325 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.17 with commit c9aa889b035fca4598ae985a0f0c76ebbb547ad2 and fixed in 6.14.2 with commit 31d3156efe909b53ba174861a3da880c688f5edc |
| Issue introduced in 5.17 with commit c9aa889b035fca4598ae985a0f0c76ebbb547ad2 and fixed in 6.15 with commit 3db4404435397a345431b45f57876a3df133f3b4 |
| Issue introduced in 5.15.111 with commit 39db562b3fedb93978a7e42dd216b306740959f8 |
| |
| 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-2025-40325 |
| 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/md/raid10.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/31d3156efe909b53ba174861a3da880c688f5edc |
| https://git.kernel.org/stable/c/3db4404435397a345431b45f57876a3df133f3b4 |
