{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38198", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:23.993Z", "datePublished": "2025-07-04T13:37:20.588Z", "dateUpdated": "2025-07-28T04:14:52.439Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-07-28T04:14:52.439Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: Make sure modelist not set on unregistered console\n\nIt looks like attempting to write to the \"store_modes\" sysfs node will\nrun afoul of unregistered consoles:\n\nUBSAN: array-index-out-of-bounds in drivers/video/fbdev/core/fbcon.c:122:28\nindex -1 is out of range for type 'fb_info *[32]'\n...\n fbcon_info_from_console+0x192/0x1a0 drivers/video/fbdev/core/fbcon.c:122\n fbcon_new_modelist+0xbf/0x2d0 drivers/video/fbdev/core/fbcon.c:3048\n fb_new_modelist+0x328/0x440 drivers/video/fbdev/core/fbmem.c:673\n store_modes+0x1c9/0x3e0 drivers/video/fbdev/core/fbsysfs.c:113\n dev_attr_store+0x55/0x80 drivers/base/core.c:2439\n\nstatic struct fb_info *fbcon_registered_fb[FB_MAX];\n...\nstatic signed char con2fb_map[MAX_NR_CONSOLES];\n...\nstatic struct fb_info *fbcon_info_from_console(int console)\n...\n return fbcon_registered_fb[con2fb_map[console]];\n\nIf con2fb_map contains a -1 things go wrong here. Instead, return NULL,\nas callers of fbcon_info_from_console() are trying to compare against\nexisting \"info\" pointers, so error handling should kick in correctly."}], "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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "b3237d451bf3a4490cb1a76f3b7c91d9888f1c4b", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "519ba75728ee8cd561dce25fc52a2ec5c47171dc", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "f28f1f578cd810779d01999c60618cda14c281dd", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "54b28f7c567dd659e5f9562f518e4d7f3f6a367b", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "cedc1b63394a866bf8663a3e40f4546f1d28c8d8", "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": "6.1.142", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.95", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.35", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.4", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.1.142"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.6.95"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.15.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b3237d451bf3a4490cb1a76f3b7c91d9888f1c4b"}, {"url": "https://git.kernel.org/stable/c/519ba75728ee8cd561dce25fc52a2ec5c47171dc"}, {"url": "https://git.kernel.org/stable/c/f28f1f578cd810779d01999c60618cda14c281dd"}, {"url": "https://git.kernel.org/stable/c/54b28f7c567dd659e5f9562f518e4d7f3f6a367b"}, {"url": "https://git.kernel.org/stable/c/cedc1b63394a866bf8663a3e40f4546f1d28c8d8"}], "title": "fbcon: Make sure modelist not set on unregistered console", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: Make sure modelist not set on unregistered console\n\nIt looks like attempting to write to the \"store_modes\" sysfs node will\nrun afoul of unregistered consoles:\n\nUBSAN: array-index-out-of-bounds in drivers/video/fbdev/core/fbcon.c:122:28\nindex -1 is out of range for type 'fb_info *[32]'\n...\n fbcon_info_from_console+0x192/0x1a0 drivers/video/fbdev/core/fbcon.c:122\n fbcon_new_modelist+0xbf/0x2d0 drivers/video/fbdev/core/fbcon.c:3048\n fb_new_modelist+0x328/0x440 drivers/video/fbdev/core/fbmem.c:673\n store_modes+0x1c9/0x3e0 drivers/video/fbdev/core/fbsysfs.c:113\n dev_attr_store+0x55/0x80 drivers/base/core.c:2439\n\nstatic struct fb_info *fbcon_registered_fb[FB_MAX];\n...\nstatic signed char con2fb_map[MAX_NR_CONSOLES];\n...\nstatic struct fb_info *fbcon_info_from_console(int console)\n...\n return fbcon_registered_fb[con2fb_map[console]];\n\nIf con2fb_map contains a -1 things go wrong here. Instead, return NULL,\nas callers of fbcon_info_from_console() are trying to compare against\nexisting \"info\" pointers, so error handling should kick in correctly."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fbcon: Aseg\u00farese de que modelist no est\u00e9 configurado en una consola no registrada Parece que intentar escribir en el nodo sysfs \"store_modes\" entrar\u00e1 en conflicto con las consolas no registradas: UBSAN: array-index-out-of-bounds in drivers/video/fbdev/core/fbcon.c:122:28 index -1 is out of range for type 'fb_info *[32]' ... fbcon_info_from_console+0x192/0x1a0 drivers/video/fbdev/core/fbcon.c:122 fbcon_new_modelist+0xbf/0x2d0 drivers/video/fbdev/core/fbcon.c:3048 fb_new_modelist+0x328/0x440 drivers/video/fbdev/core/fbmem.c:673 store_modes+0x1c9/0x3e0 drivers/video/fbdev/core/fbsysfs.c:113 dev_attr_store+0x55/0x80 drivers/base/core.c:2439 static struct fb_info *fbcon_registered_fb[FB_MAX]; ... static signed char con2fb_map[MAX_NR_CONSOLES]; ... static struct fb_info *fbcon_info_from_console(int console) ... return fbcon_registered_fb[con2fb_map[console]]; Si con2fb_map contiene un valor de -1, la situaci\u00f3n podr\u00eda fallar. En su lugar, se devuelve NULL, ya que quienes llaman a fbcon_info_from_console() intentan comparar con punteros \"info\" existentes, por lo que la gesti\u00f3n de errores deber\u00eda funcionar correctamente."}], "id": "CVE-2025-38198", "lastModified": "2025-07-08T16:18:53.607", "metrics": {}, "published": "2025-07-04T14:15:27.040", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/519ba75728ee8cd561dce25fc52a2ec5c47171dc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/54b28f7c567dd659e5f9562f518e4d7f3f6a367b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b3237d451bf3a4490cb1a76f3b7c91d9888f1c4b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cedc1b63394a866bf8663a3e40f4546f1d28c8d8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f28f1f578cd810779d01999c60618cda14c281dd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: fbcon: Make sure modelist not set on unregistered console", "id": "2376394", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376394"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nfbcon: Make sure modelist not set on unregistered console\nIt looks like attempting to write to the \"store_modes\" sysfs node will\nrun afoul of unregistered consoles:\nUBSAN: array-index-out-of-bounds in drivers/video/fbdev/core/fbcon.c:122:28\nindex -1 is out of range for type 'fb_info *[32]'\n...\nfbcon_info_from_console+0x192/0x1a0 drivers/video/fbdev/core/fbcon.c:122\nfbcon_new_modelist+0xbf/0x2d0 drivers/video/fbdev/core/fbcon.c:3048\nfb_new_modelist+0x328/0x440 drivers/video/fbdev/core/fbmem.c:673\nstore_modes+0x1c9/0x3e0 drivers/video/fbdev/core/fbsysfs.c:113\ndev_attr_store+0x55/0x80 drivers/base/core.c:2439\nstatic struct fb_info *fbcon_registered_fb[FB_MAX];\n...\nstatic signed char con2fb_map[MAX_NR_CONSOLES];\n...\nstatic struct fb_info *fbcon_info_from_console(int console)\n...\nreturn fbcon_registered_fb[con2fb_map[console]];\nIf con2fb_map contains a -1 things go wrong here. Instead, return NULL,\nas callers of fbcon_info_from_console() are trying to compare against\nexisting \"info\" pointers, so error handling should kick in correctly."], "name": "CVE-2025-38198", "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": "2025-07-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38198\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38198\nhttps://lore.kernel.org/linux-cve-announce/2025070417-CVE-2025-38198-b902@gregkh/T"], "threat_severity": "Low"}