| 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-2024-50287: media: v4l2-tpg: prevent the risk of a division by zero |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| media: v4l2-tpg: prevent the risk of a division by zero |
| |
| As reported by Coverity, the logic at tpg_precalculate_line() |
| blindly rescales the buffer even when scaled_witdh is equal to |
| zero. If this ever happens, this will cause a division by zero. |
| |
| Instead, add a WARN_ON_ONCE() to trigger such cases and return |
| without doing any precalculation. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50287 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.18 with commit 63881df94d3ecbb0deafa0b77da62ff2f32961c4 and fixed in 4.19.324 with commit e3c36d0bde309f690ed1f9cd5f7e63b3a513f94a |
| Issue introduced in 3.18 with commit 63881df94d3ecbb0deafa0b77da62ff2f32961c4 and fixed in 5.4.286 with commit 0bfc6e38ee2250f0503d96f1a1de441c31d88715 |
| Issue introduced in 3.18 with commit 63881df94d3ecbb0deafa0b77da62ff2f32961c4 and fixed in 5.10.230 with commit 054931ca3cfcb8e8fa036e887d6f379942b02565 |
| Issue introduced in 3.18 with commit 63881df94d3ecbb0deafa0b77da62ff2f32961c4 and fixed in 5.15.172 with commit a749c15dccc58d9cbad9cd23bd8ab4b5fa96cf47 |
| Issue introduced in 3.18 with commit 63881df94d3ecbb0deafa0b77da62ff2f32961c4 and fixed in 6.1.117 with commit c63c30c9d9f2c8de34b16cd2b8400240533b914e |
| Issue introduced in 3.18 with commit 63881df94d3ecbb0deafa0b77da62ff2f32961c4 and fixed in 6.6.61 with commit 2d0f01aa602fd15a805771bdf3f4d9a9b4df7f47 |
| Issue introduced in 3.18 with commit 63881df94d3ecbb0deafa0b77da62ff2f32961c4 and fixed in 6.11.8 with commit 0cdb42ba0b28f548c1a4e86bb8489dba0d78fc21 |
| Issue introduced in 3.18 with commit 63881df94d3ecbb0deafa0b77da62ff2f32961c4 and fixed in 6.12 with commit e6a3ea83fbe15d4818d01804e904cbb0e64e543b |
| |
| 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-2024-50287 |
| 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/common/v4l2-tpg/v4l2-tpg-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/e3c36d0bde309f690ed1f9cd5f7e63b3a513f94a |
| https://git.kernel.org/stable/c/0bfc6e38ee2250f0503d96f1a1de441c31d88715 |
| https://git.kernel.org/stable/c/054931ca3cfcb8e8fa036e887d6f379942b02565 |
| https://git.kernel.org/stable/c/a749c15dccc58d9cbad9cd23bd8ab4b5fa96cf47 |
| https://git.kernel.org/stable/c/c63c30c9d9f2c8de34b16cd2b8400240533b914e |
| https://git.kernel.org/stable/c/2d0f01aa602fd15a805771bdf3f4d9a9b4df7f47 |
| https://git.kernel.org/stable/c/0cdb42ba0b28f548c1a4e86bb8489dba0d78fc21 |
| https://git.kernel.org/stable/c/e6a3ea83fbe15d4818d01804e904cbb0e64e543b |
