{"api_version":"1","generated_at":"2026-06-03T09:12:25+00:00","cve":"CVE-2026-46191","urls":{"html":"https://cve.report/CVE-2026-46191","api":"https://cve.report/api/cve/CVE-2026-46191.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46191","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46191"},"summary":{"title":"fbcon: Avoid OOB font access if console rotation fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: Avoid OOB font access if console rotation fails\n\nClear the font buffer if the reallocation during console rotation fails\nin fbcon_rotate_font(). The putcs implementations for the rotated buffer\nwill return early in this case. See [1] for an example.\n\nCurrently, fbcon_rotate_font() keeps the old buffer, which is too small\nfor the rotated font. Printing to the rotated console with a high-enough\ncharacter code will overflow the font buffer.\n\nv2:\n- fix typos in commit message","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:34","updated_at":"2026-05-28 13:44:01"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27","name":"https://git.kernel.org/stable/c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80","name":"https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263","name":"https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842","name":"https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f","name":"https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46191","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46191","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 594973a2e54924d8ba31c9faac669fc1ba6fcb80 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 ab6c34b9829d5de03f1d08a47a2253729a6e7e27 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 7105d9f1387d63b15c9a860674fc92c959181f2f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 b44cc78ff46b96e72d333a3be6aaaa0a14797263 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cc50e1c5b57180fd37a31282000f43859b0fe73 e4ef723d8975a2694cc90733a6b888a5e2841842 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.90 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.32 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.7 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46191","cve":"CVE-2026-46191","epss":"0.000180000","percentile":"0.050080000","score_date":"2026-06-02","updated_at":"2026-06-03 00:08:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/video/fbdev/core/fbcon_rotate.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"594973a2e54924d8ba31c9faac669fc1ba6fcb80","status":"affected","version":"6cc50e1c5b57180fd37a31282000f43859b0fe73","versionType":"git"},{"lessThan":"ab6c34b9829d5de03f1d08a47a2253729a6e7e27","status":"affected","version":"6cc50e1c5b57180fd37a31282000f43859b0fe73","versionType":"git"},{"lessThan":"7105d9f1387d63b15c9a860674fc92c959181f2f","status":"affected","version":"6cc50e1c5b57180fd37a31282000f43859b0fe73","versionType":"git"},{"lessThan":"b44cc78ff46b96e72d333a3be6aaaa0a14797263","status":"affected","version":"6cc50e1c5b57180fd37a31282000f43859b0fe73","versionType":"git"},{"lessThan":"e4ef723d8975a2694cc90733a6b888a5e2841842","status":"affected","version":"6cc50e1c5b57180fd37a31282000f43859b0fe73","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/video/fbdev/core/fbcon_rotate.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.15"},{"lessThan":"2.6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.90","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.32","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"2.6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.90","versionStartIncluding":"2.6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.32","versionStartIncluding":"2.6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.7","versionStartIncluding":"2.6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"2.6.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: Avoid OOB font access if console rotation fails\n\nClear the font buffer if the reallocation during console rotation fails\nin fbcon_rotate_font(). The putcs implementations for the rotated buffer\nwill return early in this case. See [1] for an example.\n\nCurrently, fbcon_rotate_font() keeps the old buffer, which is too small\nfor the rotated font. Printing to the rotated console with a high-enough\ncharacter code will overflow the font buffer.\n\nv2:\n- fix typos in commit message"}],"providerMetadata":{"dateUpdated":"2026-05-28T09:36:44.961Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80"},{"url":"https://git.kernel.org/stable/c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27"},{"url":"https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f"},{"url":"https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263"},{"url":"https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842"}],"title":"fbcon: Avoid OOB font access if console rotation fails","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46191","datePublished":"2026-05-28T09:36:44.961Z","dateReserved":"2026-05-13T15:03:33.104Z","dateUpdated":"2026-05-28T09:36:44.961Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:34","lastModifiedDate":"2026-05-28 13:44:01","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46191","Ordinal":"1","Title":"fbcon: Avoid OOB font access if console rotation fails","CVE":"CVE-2026-46191","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46191","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: Avoid OOB font access if console rotation fails\n\nClear the font buffer if the reallocation during console rotation fails\nin fbcon_rotate_font(). The putcs implementations for the rotated buffer\nwill return early in this case. See [1] for an example.\n\nCurrently, fbcon_rotate_font() keeps the old buffer, which is too small\nfor the rotated font. Printing to the rotated console with a high-enough\ncharacter code will overflow the font buffer.\n\nv2:\n- fix typos in commit message","Type":"Description","Title":"fbcon: Avoid OOB font access if console rotation fails"}]}}}