CVE-2024-26777fbdev: sis: Error out if pixclock equals zero
Updated under an hour ago ()
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It affects Linux and 8 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. Fix this by checking it at the beginning. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 84246c35ca34207114055a87552a1c4289c8fd7e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6db07619d173765bd8622d63809cbfe361f04207; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before cd36da760bd1f78c63c7078407baf01dd724f313; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before df6e2088c6f4cad539cf67cba2d6764461e798d1; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before f329523f6a65c3bbce913ad35473d83a319d5d99; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 99f1abc34a6dde248d2219d64aa493c76bbdd9eb; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 builds before 1d11dd3ea5d039c7da089f309f39c4cd363b924b; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e421946be7d9bf545147bea8419ef8239cb7ca52 | CNA record |
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name) | all versions not affected | CISA ADP |
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name) | all versions not affected | CISA ADP |
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name) | all versions not affected | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
linux linux_kernel linux:linux_kernel | before 4.19.308; from 4.20 before 5.4.270; from 5.5 before 5.10.211; from 5.11 before 5.15.150; from 5.16 before 6.1.80; from 6.2 before 6.6.19; from 6.7 before 6.7.7; 6.8 | NVD |
debian debian_linux debian:debian_linux | 10.0 | NVD |
References
- https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7epatch
- https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207patch
- https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313patch
- https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1patch
- https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99patch
- https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9ebpatch
- https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924bpatch
- https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlmailing-list
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlmailing-list
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.