CVE-2026-74424

{"id": "CVE-2026-74424", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e", "lessThan": "8e9b8b008f4036df0318870c5d754134ff1b94cc", "versionType": "git"}, {"status": "affected", "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e", "lessThan": "cc4382dc5134826a3936a6b08de17f7dc7abe232", "versionType": "git"}, {"status": "affected", "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e", "lessThan": "9b783b7e03dc78ec102edf618259a2b55911fc6a", "versionType": "git"}, {"status": "affected", "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e", "lessThan": "ac970358c5ca0775841bd2a56ce15dc464b99003", "versionType": "git"}, {"status": "affected", "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e", "lessThan": "6617df8c246311c82cebf061a4cee55b9df60922", "versionType": "git"}, {"status": "affected", "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e", "lessThan": "b134ad2f7c06b3c1098dcc95008e2045ff4b49b2", "versionType": "git"}, {"status": "affected", "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e", "lessThan": "5fae9a928482d4845bca169a3a098789203a1ca4", "versionType": "git"}], "programFiles": ["drivers/video/fbdev/core/fbcon.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.23"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.23", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.212", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.178", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/video/fbdev/core/fbcon.c"], "defaultStatus": "affected"}]}], "published": "2026-08-15T06:22:44.480", "references": [{"url": "https://git.kernel.org/stable/c/5fae9a928482d4845bca169a3a098789203a1ca4", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6617df8c246311c82cebf061a4cee55b9df60922", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8e9b8b008f4036df0318870c5d754134ff1b94cc", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9b783b7e03dc78ec102edf618259a2b55911fc6a", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ac970358c5ca0775841bd2a56ce15dc464b99003", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b134ad2f7c06b3c1098dcc95008e2045ff4b49b2", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cc4382dc5134826a3936a6b08de17f7dc7abe232", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "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."}], "lastModified": "2026-08-18T07:16:54.610", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}