CVE-2026-89817
drm/gud: NUL-terminate TV mode names read from the device
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: drm/gud: NUL-terminate TV mode names read from the device gud_connector_add_tv_mode() reads a buffer of fixed-size mode names from the USB device and passes pointers into it to drm_mode_create_tv_properties_legacy(), which calls strlen() on each one. Nothing guarantees the device NUL-terminates a name, so strlen() can run past the end of a slot and, for the last mode, past the end of the allocation. Terminate each name at the end of its slot before use.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 16, 2026 |
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Affected Versions
Linux / Linux
40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 08c8ec28547987e55a90c662f8795e05c2925498 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 9096edfd6f2edbc79612b482547e0972edbcfe4b 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 89210cb5ff8fdbe055c97ac688be2268f6c815ae 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < d0f3312f7800eb0e00d1264f66104c788f43dd69 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < b86438a5c6b0250ccb07dd380184d1e70e0dea6c 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 6ea61f1d4cbaa0db937e31bffc041fb8afeacf52 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 500cb24cd61bad8a2747ddfc49b7034899c82d94
Linux / Linux
5.13
References
git.kernel.org: https://git.kernel.org/stable/c/08c8ec28547987e55a90c662f8795e05c2925498 git.kernel.org: https://git.kernel.org/stable/c/9096edfd6f2edbc79612b482547e0972edbcfe4b git.kernel.org: https://git.kernel.org/stable/c/89210cb5ff8fdbe055c97ac688be2268f6c815ae git.kernel.org: https://git.kernel.org/stable/c/d0f3312f7800eb0e00d1264f66104c788f43dd69 git.kernel.org: https://git.kernel.org/stable/c/b86438a5c6b0250ccb07dd380184d1e70e0dea6c git.kernel.org: https://git.kernel.org/stable/c/6ea61f1d4cbaa0db937e31bffc041fb8afeacf52 git.kernel.org: https://git.kernel.org/stable/c/500cb24cd61bad8a2747ddfc49b7034899c82d94