{"id":"CVE-2026-74320","state":"PUBLISHED","title":"fbdev: sm501fb: Fix buffer errors in OF binding code","description":"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->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.","publishedAt":"2026-08-15T05:58:16.805Z","updatedAt":"2026-08-17T05:17:10.332Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"0bc3d909a49e1fd8b8c3f2160d526e672c40621d","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"47008d59c60ed896085da95f8d4dd40e1677dd3a","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"d374f76e1257ecc5d691a765c512ed2c29a44741","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"b2ff450f7f5cfc7143cab57c3ad70293ba8b822a","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"de590cdf7efec8a0b6da90ae2ab5fc5df26810b9","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"48cf0f4c6581ec90104cec9c5bf794a8bf347e30","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"d8421e09382cfe0bd2a044c8b0a822f64855dd4e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/sm501fb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.39","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.39","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/sm501fb.c"]}],"references":["https://git.kernel.org/stable/c/0bc3d909a49e1fd8b8c3f2160d526e672c40621d","https://git.kernel.org/stable/c/47008d59c60ed896085da95f8d4dd40e1677dd3a","https://git.kernel.org/stable/c/d374f76e1257ecc5d691a765c512ed2c29a44741","https://git.kernel.org/stable/c/b2ff450f7f5cfc7143cab57c3ad70293ba8b822a","https://git.kernel.org/stable/c/9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31","https://git.kernel.org/stable/c/de590cdf7efec8a0b6da90ae2ab5fc5df26810b9","https://git.kernel.org/stable/c/48cf0f4c6581ec90104cec9c5bf794a8bf347e30","https://git.kernel.org/stable/c/d8421e09382cfe0bd2a044c8b0a822f64855dd4e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74320.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74320","state":"PUBLISHED","datePublished":"2026-08-15T05:58:16.805Z","dateUpdated":"2026-08-17T05:17:10.332Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.884Z"},"containers":{"cna":{"title":"fbdev: sm501fb: Fix buffer errors in OF binding code","descriptions":[{"lang":"en","value":"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->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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"0bc3d909a49e1fd8b8c3f2160d526e672c40621d","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"47008d59c60ed896085da95f8d4dd40e1677dd3a","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"d374f76e1257ecc5d691a765c512ed2c29a44741","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"b2ff450f7f5cfc7143cab57c3ad70293ba8b822a","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"9057e3f5db39f0ef0dac2f59f2bc59bf17e36c31","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"de590cdf7efec8a0b6da90ae2ab5fc5df26810b9","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"48cf0f4c6581ec90104cec9c5bf794a8bf347e30","versionType":"git"},{"version":"4295f9bf74a885da390abc49a3b42a011c1bb890","status":"affected","lessThan":"d8421e09382cfe0bd2a044c8b0a822f64855dd4e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/sm501fb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.39","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.39","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/sm501fb.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:17:10.332Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.39","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}