| From bippy-5f407fcff5a0 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-2024-36976: Revert "media: v4l2-ctrls: show all owned controls in log_status" |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Revert "media: v4l2-ctrls: show all owned controls in log_status" |
| |
| This reverts commit 9801b5b28c6929139d6fceeee8d739cc67bb2739. |
| |
| This patch introduced a potential deadlock scenario: |
| |
| [Wed May 8 10:02:06 2024] Possible unsafe locking scenario: |
| |
| [Wed May 8 10:02:06 2024] CPU0 CPU1 |
| [Wed May 8 10:02:06 2024] ---- ---- |
| [Wed May 8 10:02:06 2024] lock(vivid_ctrls:1620:(hdl_vid_cap)->_lock); |
| [Wed May 8 10:02:06 2024] lock(vivid_ctrls:1608:(hdl_user_vid)->_lock); |
| [Wed May 8 10:02:06 2024] lock(vivid_ctrls:1620:(hdl_vid_cap)->_lock); |
| [Wed May 8 10:02:06 2024] lock(vivid_ctrls:1608:(hdl_user_vid)->_lock); |
| |
| For now just revert. |
| |
| The Linux kernel CVE team has assigned CVE-2024-36976 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.9 with commit 9801b5b28c6929139d6fceeee8d739cc67bb2739 and fixed in 6.9.2 with commit 2e0ce54a9c5c7013b1257be044d99cbe7305e9f1 |
| Issue introduced in 6.9 with commit 9801b5b28c6929139d6fceeee8d739cc67bb2739 and fixed in 6.10 with commit eba63df7eb1f95df6bfb67722a35372b6994928d |
| |
| 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-2024-36976 |
| 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/media/v4l2-core/v4l2-ctrls-core.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/2e0ce54a9c5c7013b1257be044d99cbe7305e9f1 |
| https://git.kernel.org/stable/c/eba63df7eb1f95df6bfb67722a35372b6994928d |
