{"id":"CVE-2026-80542","summary":"drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()\n\namdgpu_dm_crtc_set_vblank() dereferences acrtc_state-\u003estream when\nvblank is enabled/queried from DRM_IOCTL_MODE_CRTC_GET_SEQUENCE before\na stream is attached to it.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nRIP: amdgpu_dm_crtc_set_vblank+0x6b/0x4d0 [amdgpu]\nCall Trace:\n drm_vblank_enable\n drm_vblank_get\n drm_crtc_get_sequence_ioctl\n drm_ioctl_kernel\n drm_ioctl\n\nReproduced by running VKCTS with WSI tests enabled on RADV.\n\nGuard the enable path on acrtc_state-\u003estream being non-NULL, matching\nthe existing checks in this function.\n\n(cherry picked from commit 7b1b31bf6942e6f43509b48da23f8e27269aac39)","modified":"2026-08-28T11:48:23.509633150Z","published":"2026-08-26T14:37:15.168Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80542.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/4a6bc92fac30070511d66bcce4ed9b7dac983180"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f2a1c4c6fe0a6fcde02e59dde546dba28d283635"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80542.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80542"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"34d66bc7ff10e146a4cec76cf286979740a10954"},{"fixed":"5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af"},{"fixed":"4a6bc92fac30070511d66bcce4ed9b7dac983180"},{"fixed":"f2a1c4c6fe0a6fcde02e59dde546dba28d283635"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80542.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.18.0"},{"fixed":"6.18.46"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80542.json"}}],"schema_version":"1.9.0"}