| 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-2025-37866: mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show() |
| |
| A warning is seen when running the latest kernel on a BlueField SOC: |
| [251.512704] ------------[ cut here ]------------ |
| [251.512711] invalid sysfs_emit: buf:0000000003aa32ae |
| [251.512720] WARNING: CPU: 1 PID: 705264 at fs/sysfs/file.c:767 sysfs_emit+0xac/0xc8 |
| |
| The warning is triggered because the mlxbf-bootctl driver invokes |
| "sysfs_emit()" with a buffer pointer that is not aligned to the |
| start of the page. The driver should instead use "sysfs_emit_at()" |
| to support non-zero offsets into the destination buffer. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37866 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.14 with commit 9886f575de5aefcfab537467c72e5176e5301df0 and fixed in 6.14.4 with commit 5e1dcc5bfd7a2896178c604bc69d6ab9650967da |
| Issue introduced in 6.14 with commit 9886f575de5aefcfab537467c72e5176e5301df0 and fixed in 6.15 with commit b129005ddfc0e6daf04a6d3b928a9e474f9b3918 |
| |
| 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-2025-37866 |
| 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/platform/mellanox/mlxbf-bootctl.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/5e1dcc5bfd7a2896178c604bc69d6ab9650967da |
| https://git.kernel.org/stable/c/b129005ddfc0e6daf04a6d3b928a9e474f9b3918 |
