CVE-2026-80542: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank() amdgpu_dm_crtc_set_vblank() dereferences acrtc_state->stream when vblank is enabled/queried from DRM_IOCTL_MODE_CRTC_GET_SEQUENCE before a stream is attached to it. BUG: kernel NULL pointer dereference, address: 0000000000000008 RIP: amdgpu_dm_crtc_set_vblank+0x6b/0x4d0 [amdgpu] Call Trace: drm_vblank_enable drm_vblank_get drm_crtc_get_sequence_ioctl drm_ioctl_kernel drm_ioctl Reproduced by running VKCTS with WSI tests enabled on RADV. Guard the enable path on acrtc_state->stream being non-NULL, matching the existing checks in this function. (cherry picked from commit 7b1b31bf6942e6f43509b48da23f8e27269aac39)

Засегнати продукти

• Linux Linux: 34d66bc7ff10e146a4cec76cf286979740a10954 преди 5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af; 34d66bc7ff10e146a4cec76cf286979740a10954 преди 4a6bc92fac30070511d66bcce4ed9b7dac983180; 34d66bc7ff10e146a4cec76cf286979740a10954 преди f2a1c4c6fe0a6fcde02e59dde546dba28d283635
• Linux Linux: 6.18; преди 6.18; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-80542
• https://nvd.nist.gov/vuln/detail/CVE-2026-80542
• https://git.kernel.org/stable/c/5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af
• https://git.kernel.org/stable/c/4a6bc92fac30070511d66bcce4ed9b7dac983180
• https://git.kernel.org/stable/c/f2a1c4c6fe0a6fcde02e59dde546dba28d283635