{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-50261", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50261", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-09-15T14:03:04.439Z", "updatedAt": "2026-05-11T19:15:53.926Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()\n\nWith clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG),\nindirect call targets are validated against the expected function\npointer prototype to make sure the call target is valid to help mitigate\nROP attacks. If they are not identical, there is a failure at run time,\nwhich manifests as either a kernel panic or thread getting killed. A\nproposed warning in clang aims to catch these at compile time, which\nreveals:\n\n drivers/gpu/drm/sti/sti_hda.c:637:16: error: incompatible function pointer types initializing 'enum drm_mode_status (*)(struct drm_connector *, struct drm_display_mode *)' with an expression of type 'int (struct drm_connector *, struct drm_display_mode *)' [-Werror,-Wincompatible-function-pointer-types-strict]\n .mode_valid = sti_hda_connector_mode_valid,\n ^~~~~~~~~~~~~~~~~~~~~~~~~~~~\n drivers/gpu/drm/sti/sti_dvo.c:376:16: error: incompatible function pointer types initializing 'enum drm_mode_status (*)(struct drm_connector *, struct drm_display_mode *)' with an expression of type 'int (struct drm_connector *, struct drm_display_mode *)' [-Werror,-Wincompatible-function-pointer-types-strict]\n .mode_valid = sti_dvo_connector_mode_valid,\n ^~~~~~~~~~~~~~~~~~~~~~~~~~~~\n drivers/gpu/drm/sti/sti_hdmi.c:1035:16: error: incompatible function pointer types initializing 'enum drm_mode_status (*)(struct drm_connector *, struct drm_display_mode *)' with an expression of type 'int (struct drm_connector *, struct drm_display_mode *)' [-Werror,-Wincompatible-function-pointer-types-strict]\n .mode_valid = sti_hdmi_connector_mode_valid,\n ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n->mode_valid() in 'struct drm_connector_helper_funcs' expects a return\ntype of 'enum drm_mode_status', not 'int'. Adjust the return type of\nsti_{dvo,hda,hdmi}_connector_mode_valid() to match the prototype's to\nresolve the warning and CFI failure.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "b2c92b2a3801b09b709cbefd9a9e4944b72400bf" }, { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "b4307c7d35e346b909edfdc1f280902150570bb6" }, { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "8f9941dea3a70b73f2063f9dcc4aaae6af03c5ba" }, { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "511b48ee8e4aec2d03d2af06b363d9eb3230b017" }, { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "6e3c4d3fa5d458d685561ecbaf8daa9dba14979e" }, { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "a075c21ee026f4a74f9fce5928ea3c8d18a8af13" }, { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "e578b0906b6a81479cd5b5b6c848a7096addf5e9" }, { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "04371a75a58422a301a9ff9ae3babd310ac3bb3f" }, { "version": "5402626c83a2f19da14859e2bab231a53e16ee74", "status": "affected", "versionType": "git", "lessThan": "0ad811cc08a937d875cbad0149c1bab17f84ba05" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.17", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.17" }, { "version": "4.9.337", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.9.*" }, { "version": "4.14.303", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.270", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.229", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.163", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.86", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.0.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.0.*" }, { "version": "6.1.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }