{"id":"CVE-2026-89826","published":"2026-09-16T11:16:49.253","lastModified":"2026-09-16T15:18:11.553","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: harden firmware build-info bounds checks\n\npanthor_fw_read_build_info() checks whether the metadata range fits in the\nfirmware image with hdr.meta_start + hdr.meta_size. Both fields are u32, so\nthe addition can wrap and let an out-of-bounds range pass validation.\n\nThe function also reads the \"git_sha: \" prefix without first checking that\nthe metadata is long enough, and meta_size == 0 can underflow the NULL\nterminator index.\n\nUse subtraction-based bounds checking and reject metadata that is too short\nto contain the expected prefix and trailing NULL byte.","cvssScore":7.1,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/5516f1acfd07564361cf306cc90a8e513df0f096","tags":[]},{"url":"https://git.kernel.org/stable/c/6ae19dce3e8c13ae73590b3f4311abe9f96bbae8","tags":[]},{"url":"https://git.kernel.org/stable/c/8321b093fa6c297b80586460ce6914d9655df170","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}