| 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-2025-37971: staging: bcm2835-camera: Initialise dev in v4l2_dev |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| staging: bcm2835-camera: Initialise dev in v4l2_dev |
| |
| Commit 42a2f6664e18 ("staging: vc04_services: Move global g_state to |
| vchiq_state") changed mmal_init to pass dev->v4l2_dev.dev to |
| vchiq_mmal_init, however nothing iniitialised dev->v4l2_dev, so we got |
| a NULL pointer dereference. |
| |
| Set dev->v4l2_dev.dev during bcm2835_mmal_probe. The device pointer |
| could be passed into v4l2_device_register to set it, however that also |
| has other effects that would need additional changes. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37971 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.10 with commit 42a2f6664e18874302623f31edef545ef41e1d14 and fixed in 6.12.29 with commit 06753f49336ab161ea0e249a0720125b81b7b31b |
| Issue introduced in 6.10 with commit 42a2f6664e18874302623f31edef545ef41e1d14 and fixed in 6.14.7 with commit b70bdd4923e8b8edbacde2af83ca337bb7005261 |
| Issue introduced in 6.10 with commit 42a2f6664e18874302623f31edef545ef41e1d14 and fixed in 6.15 with commit 98698ca0e58734bc5c1c24e5bbc7429f981cd186 |
| |
| 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-2025-37971 |
| 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/staging/vc04_services/bcm2835-camera/bcm2835-camera.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/06753f49336ab161ea0e249a0720125b81b7b31b |
| https://git.kernel.org/stable/c/b70bdd4923e8b8edbacde2af83ca337bb7005261 |
| https://git.kernel.org/stable/c/98698ca0e58734bc5c1c24e5bbc7429f981cd186 |
