{"id":"CVE-2026-74320","title":"fbdev: sm501fb: Fix buffer errors in OF binding code","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: sm501fb: Fix buffer errors in OF binding code\n\nThe code that gets the frame buffer mode from OF has 'use after free',\n'buffer overrun' and memory leaks.\n\ninfo->e…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 0bc3d909a49e1fd8b8c3f2160d526e672c40621d","Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 47008d59c60ed896085da95f8d4dd40e1677dd3a","Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < d374f76e1257ecc5d691a765c512ed2c29a44741","Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < b2ff450f7f5cfc7143cab57c3ad70293ba8b822a","Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31","Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < de590cdf7efec8a0b6da90ae2ab5fc5df26810b9","Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 48cf0f4c6581ec90104cec9c5bf794a8bf347e30","Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < d8421e09382cfe0bd2a044c8b0a822f64855dd4e","Linux 2.6.39"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:56:00.818973Z"},"published":"2026-08-15","updated":"2026-11-06","sourceUpdated":"2026-11-06T17:05:43.745Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74320","references":[{"url":"https://git.kernel.org/stable/c/0bc3d909a49e1fd8b8c3f2160d526e672c40621d"},{"url":"https://git.kernel.org/stable/c/47008d59c60ed896085da95f8d4dd40e1677dd3a"},{"url":"https://git.kernel.org/stable/c/d374f76e1257ecc5d691a765c512ed2c29a44741"},{"url":"https://git.kernel.org/stable/c/b2ff450f7f5cfc7143cab57c3ad70293ba8b822a"},{"url":"https://git.kernel.org/stable/c/9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31"},{"url":"https://git.kernel.org/stable/c/de590cdf7efec8a0b6da90ae2ab5fc5df26810b9"},{"url":"https://git.kernel.org/stable/c/48cf0f4c6581ec90104cec9c5bf794a8bf347e30"},{"url":"https://git.kernel.org/stable/c/d8421e09382cfe0bd2a044c8b0a822f64855dd4e"}],"tags":["cve.org"],"epss":0.0022,"epssPercentile":0.12553,"ingestedAt":"2026-11-06T18:00:12.570Z","slug":"CVE-2026-74320","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: sm501fb: Fix buffer errors in OF binding code\n\nThe code that gets the frame buffer mode from OF has 'use after free',\n'buffer overrun' and memory leaks.\n\ninfo->edid_data isn't free if the probe functions fail or if\npd->def_mode is set.\n\nIf both the CRT and PANEL are enabled info->edid_data is used after\nbeing freed and is freed twice.\n\nThe string returned by of_get_property(np, \"mode\", &len) is just\nwritten over either the static \"640x480-16@60\" or the module parameter\nstring without any regard for the length (which is most likely longer).\n\nUse kstrump() for the OF mode and free everything before freeing 'info.\n\n## Affected\n\n- `Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 0bc3d909a49e1fd8b8c3f2160d526e672c40621d`\n- `Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 47008d59c60ed896085da95f8d4dd40e1677dd3a`\n- `Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < d374f76e1257ecc5d691a765c512ed2c29a44741`\n- `Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < b2ff450f7f5cfc7143cab57c3ad70293ba8b822a`\n- `Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31`\n- `Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < de590cdf7efec8a0b6da90ae2ab5fc5df26810b9`\n- `Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < 48cf0f4c6581ec90104cec9c5bf794a8bf347e30`\n- `Linux >= 4295f9bf74a885da390abc49a3b42a011c1bb890 < d8421e09382cfe0bd2a044c8b0a822f64855dd4e`\n- `Linux 2.6.39`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}