{"id":"CVE-2024-26777","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: sis: Error out if pixclock equals zero\n\nThe userspace program could pass any values to the driver through\nioctl() interface","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: sis: Error out if pixclock equals zero\n\nThe userspace program could pass any values to the driver through\nioctl() interface. If the driver doesn't check the valu…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-369"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 4.19.308","linux_kernel >= 4.20, < 5.4.270","linux_kernel >= 5.5, < 5.10.211","linux_kernel >= 5.11, < 5.15.150","linux_kernel >= 5.16, < 6.1.80","linux_kernel >= 6.2, < 6.6.19","linux_kernel >= 6.7, < 6.7.7","linux_kernel = 6.8","debian_linux = 10.0"],"patched":["linux_kernel 6.7.7"],"published":"2024-04-03","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:17:23.220","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-26777","references":[{"url":"https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-613116.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00254,"epssPercentile":0.16863,"ingestedAt":"2026-10-15T03:30:12.648Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-04-03T18:10:58.840983Z"},"slug":"CVE-2024-26777","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: sis: Error out if pixclock equals zero\n\nThe userspace program could pass any values to the driver through\nioctl() interface. If the driver doesn't check the value of pixclock,\nit may cause divide-by-zero error.\n\nIn sisfb_check_var(), var->pixclock is used as a divisor to caculate\ndrate before it is checked against zero. Fix this by checking it\nat the beginning.\n\nThis is similar to CVE-2022-3061 in i740fb which was fixed by\ncommit 15cf0b8.\n\n## Affected\n\n- `linux_kernel < 4.19.308`\n- `linux_kernel >= 4.20, < 5.4.270`\n- `linux_kernel >= 5.5, < 5.10.211`\n- `linux_kernel >= 5.11, < 5.15.150`\n- `linux_kernel >= 5.16, < 6.1.80`\n- `linux_kernel >= 6.2, < 6.6.19`\n- `linux_kernel >= 6.7, < 6.7.7`\n- `linux_kernel = 6.8`\n- `debian_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.7.7`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}