| 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-2025-37910: ptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ptp: ocp: Fix NULL dereference in Adva board SMA sysfs operations |
| |
| On Adva boards, SMA sysfs store/get operations can call |
| __handle_signal_outputs() or __handle_signal_inputs() while the `irig` |
| and `dcf` pointers are uninitialized, leading to a NULL pointer |
| dereference in __handle_signal() and causing a kernel crash. Adva boards |
| don't use `irig` or `dcf` functionality, so add Adva-specific callbacks |
| `ptp_ocp_sma_adva_set_outputs()` and `ptp_ocp_sma_adva_set_inputs()` that |
| avoid invoking `irig` or `dcf` input/output routines. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37910 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.9 with commit ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 and fixed in 6.12.28 with commit 8a543d825e78b8d680d8f891381b83fbffdb0bb6 |
| Issue introduced in 6.9 with commit ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 and fixed in 6.14.6 with commit 5b349f9cdb4a9daa133bea267dfc0c383628387a |
| Issue introduced in 6.9 with commit ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 and fixed in 6.15 with commit e98386d79a23c57cf179fe4138322e277aa3aa74 |
| |
| 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-2025-37910 |
| 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/ptp/ptp_ocp.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/8a543d825e78b8d680d8f891381b83fbffdb0bb6 |
| https://git.kernel.org/stable/c/5b349f9cdb4a9daa133bea267dfc0c383628387a |
| https://git.kernel.org/stable/c/e98386d79a23c57cf179fe4138322e277aa3aa74 |
