{"id":"CVE-2026-64231","summary":"drm/msm/dsi: don't dump registers past the mapped region","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dsi: don't dump registers past the mapped region\n\nOn DSI 6G platforms the IO address space is internally adjusted by\nio_offset. Later this adjusted address might be used for memory dumping.\nHowever the size that is used for memory dumping isn't adjusted to\naccount for the io_offset, leading to the potential access to the\nunmapped region. Lower ctrl_size by the io_offset value to prevent\naccess past the mapped area.\n\n msm_disp_snapshot_add_block+0x1d4/0x3c8 [msm] (P)\n msm_dsi_host_snapshot+0x4c/0x78 [msm]\n msm_dsi_snapshot+0x28/0x50 [msm]\n msm_disp_snapshot_capture_state+0x74/0x140 [msm]\n msm_disp_snapshot_state_sync+0x60/0x90 [msm]\n _msm_disp_snapshot_work+0x30/0x90 [msm]\n kthread_worker_fn+0xdc/0x460\n kthread+0x120/0x140\n\nPatchwork: https://patchwork.freedesktop.org/patch/721747/","modified":"2026-07-27T04:03:20.674011948Z","published":"2026-07-24T15:23:13.175Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64231.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/567b5e976e2e15280d78c9ef2add1954a0bbb5b1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5b49a46baa853b26dbefa65c6c75dd9ff69f63d4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5e2c196c3430fb94225c4102b1028d0146544761"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9f8274749d9010a1a72f97e547b7eb9ebb82345b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a184aec790135938b0fadb415e55accd1f8685a0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ab871d5882953e5574ae2bc47bec88c2e3d22663"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64231.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64231"},{"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":"bac2c6a62ed91ba4f6c7c14a6a40b7c696b35645"},{"fixed":"5e2c196c3430fb94225c4102b1028d0146544761"},{"fixed":"567b5e976e2e15280d78c9ef2add1954a0bbb5b1"},{"fixed":"9f8274749d9010a1a72f97e547b7eb9ebb82345b"},{"fixed":"a184aec790135938b0fadb415e55accd1f8685a0"},{"fixed":"ab871d5882953e5574ae2bc47bec88c2e3d22663"},{"fixed":"5b49a46baa853b26dbefa65c6c75dd9ff69f63d4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64231.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.14.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.142"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.92"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.34"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64231.json"}}],"schema_version":"1.7.5"}