{"cve":"CVE-2022-50010","nvd":{"published":"2025-06-18T11:15:28.970","modified":"2026-06-17T05:22:33.183","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvideo: fbdev: i740fb: Check the argument of i740_calc_vclk()\n\nSince the user can control the arguments of the ioctl() from the user\nspace, under special arguments that may result in a divide-by-zero bug.\n\nIf the user provides an improper 'pixclock' value that makes the argumet\nof i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a\ndivide-by-zero bug in:\n    drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX)));\n\nThe following log can reveal it:\n\ndivide error: 0000 [#1] PREEMPT SMP KASAN PTI\nRIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline]\nRIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:646 [inline]\nRIP: 0010:i740fb_set_par+0x163f/0x3b70 drivers/video/fbdev/i740fb.c:742\nCall Trace:\n fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1034\n do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1110\n fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1189\n\nFix this by checking the argument of i740_calc_vclk() first.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-369"],"references":["https://git.kernel.org/stable/c/2b7f559152a33c55f51b569b22efbe5e24886798","https://git.kernel.org/stable/c/40bf722f8064f50200b8c4f8946cd625b441dda9","https://git.kernel.org/stable/c/4b20c61365140d432dee7da7aa294215e7b900d9","https://git.kernel.org/stable/c/59cefb583c984c0da8cf21a4c57d26d5a20dff5c","https://git.kernel.org/stable/c/656689cb03ada4650016c153346939a1c334b1ae"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:03:23.287444849+00:00"},"epss":{"cve":"CVE-2022-50010","score":0.00253,"percentile":0.16893,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}