{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74424","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-15T05:44:03.894Z","datePublished":"2026-08-15T05:59:27.179Z","dateUpdated":"2026-08-18T06:56:33.340Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-18T06:56:33.340Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: fix NULL pointer dereference for a console without vc_data\n\nfbcon_new_modelist() runs when a framebuffer's modelist changes. For each\nconsole mapped to it with fb_display[i].mode set, it reads vc_cons[i].d and\npasses the vc_num to fbcon_set_disp(). This assumes a console with a mode\nset has a vc_data, but it can be NULL. fbcon_set_disp() sets\nfb_display[i].mode before it checks vc_data, and fbcon_deinit() leaves the\nmode set after the vc_data is freed. fbcon_new_modelist() then dereferences\nthe NULL vc_data.\n\nKeep fb_display[i].mode set only while the console has a vc_data. Check\nvc_data before setting the mode in fbcon_set_disp(), and clear the mode in\nfbcon_deinit(). The existing mode check in fbcon_new_modelist() then skips\nsuch consoles."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/core/fbcon.c"],"versions":[{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","lessThan":"8e9b8b008f4036df0318870c5d754134ff1b94cc","status":"affected","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","lessThan":"cc4382dc5134826a3936a6b08de17f7dc7abe232","status":"affected","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","lessThan":"9b783b7e03dc78ec102edf618259a2b55911fc6a","status":"affected","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","lessThan":"ac970358c5ca0775841bd2a56ce15dc464b99003","status":"affected","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","lessThan":"6617df8c246311c82cebf061a4cee55b9df60922","status":"affected","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","lessThan":"b134ad2f7c06b3c1098dcc95008e2045ff4b49b2","status":"affected","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","lessThan":"5fae9a928482d4845bca169a3a098789203a1ca4","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/core/fbcon.c"],"versions":[{"version":"2.6.23","status":"affected"},{"version":"0","lessThan":"2.6.23","status":"unaffected","versionType":"semver"},{"version":"5.15.212","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/8e9b8b008f4036df0318870c5d754134ff1b94cc"},{"url":"https://git.kernel.org/stable/c/cc4382dc5134826a3936a6b08de17f7dc7abe232"},{"url":"https://git.kernel.org/stable/c/9b783b7e03dc78ec102edf618259a2b55911fc6a"},{"url":"https://git.kernel.org/stable/c/ac970358c5ca0775841bd2a56ce15dc464b99003"},{"url":"https://git.kernel.org/stable/c/6617df8c246311c82cebf061a4cee55b9df60922"},{"url":"https://git.kernel.org/stable/c/b134ad2f7c06b3c1098dcc95008e2045ff4b49b2"},{"url":"https://git.kernel.org/stable/c/5fae9a928482d4845bca169a3a098789203a1ca4"}],"title":"fbcon: fix NULL pointer dereference for a console without vc_data","x_generator":{"engine":"bippy-1.2.0"}}}}