{"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"}}}}

{}

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

{"bugzilla": {"description": "kernel: fbcon: fix NULL pointer dereference for a console without vc_data", "id": "2516790", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516790"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel. The `fbcon` component, responsible for framebuffer console operations, can encounter a NULL pointer dereference. This occurs when `fbcon_new_modelist()` attempts to access console data (`vc_data`) that has been freed, leading to a system crash. A local attacker could potentially trigger this issue, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-74424", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74424\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74424\nhttps://lore.kernel.org/linux-cve-announce/2026081513-CVE-2026-74424-2cab@gregkh/T"], "threat_severity": "Low"}