{"id":"CVE-2026-43123","state":"PUBLISHED","title":"fbcon: check return value of con2fb_acquire_newinfo()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: check return value of con2fb_acquire_newinfo()\n\nIf fbcon_open() fails when called from con2fb_acquire_newinfo() then\ninfo->fbcon_par pointer remains NULL which is later dereferenced.\n\nAdd check for return value of the function con2fb_acquire_newinfo() to\navoid it.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.","publishedAt":"2026-05-06T11:27:09.553Z","updatedAt":"2026-05-11T22:18:12.071Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"d3e535533767c85788529e626478718b7e95a59f","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"3b5a754ec86bc6064af9aca76eb191c2405e6b0c","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"a785c4e2a999c2d51dfcf40d317cfb30cc735d2c","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"11a93180a70bb3095a9bd80d113d9277e30d9959","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"f57b61624c86ef8f87f6e6b7dd0755de03d90e89","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"011a0502801c8536f64141a2b61362c14f456544","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/core/fbcon.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.23","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.23","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/core/fbcon.c"]}],"references":["https://git.kernel.org/stable/c/d3e535533767c85788529e626478718b7e95a59f","https://git.kernel.org/stable/c/3b5a754ec86bc6064af9aca76eb191c2405e6b0c","https://git.kernel.org/stable/c/a785c4e2a999c2d51dfcf40d317cfb30cc735d2c","https://git.kernel.org/stable/c/0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc","https://git.kernel.org/stable/c/11a93180a70bb3095a9bd80d113d9277e30d9959","https://git.kernel.org/stable/c/f57b61624c86ef8f87f6e6b7dd0755de03d90e89","https://git.kernel.org/stable/c/011a0502801c8536f64141a2b61362c14f456544"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43123.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43123","state":"PUBLISHED","datePublished":"2026-05-06T11:27:09.553Z","dateUpdated":"2026-05-11T22:18:12.071Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.987Z"},"containers":{"cna":{"title":"fbcon: check return value of con2fb_acquire_newinfo()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbcon: check return value of con2fb_acquire_newinfo()\n\nIf fbcon_open() fails when called from con2fb_acquire_newinfo() then\ninfo->fbcon_par pointer remains NULL which is later dereferenced.\n\nAdd check for return value of the function con2fb_acquire_newinfo() to\navoid it.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"d3e535533767c85788529e626478718b7e95a59f","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"3b5a754ec86bc6064af9aca76eb191c2405e6b0c","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"a785c4e2a999c2d51dfcf40d317cfb30cc735d2c","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"11a93180a70bb3095a9bd80d113d9277e30d9959","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"f57b61624c86ef8f87f6e6b7dd0755de03d90e89","versionType":"git"},{"version":"d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e","status":"affected","lessThan":"011a0502801c8536f64141a2b61362c14f456544","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/core/fbcon.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.23","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.23","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/core/fbcon.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d3e535533767c85788529e626478718b7e95a59f"},{"url":"https://git.kernel.org/stable/c/3b5a754ec86bc6064af9aca76eb191c2405e6b0c"},{"url":"https://git.kernel.org/stable/c/a785c4e2a999c2d51dfcf40d317cfb30cc735d2c"},{"url":"https://git.kernel.org/stable/c/0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc"},{"url":"https://git.kernel.org/stable/c/11a93180a70bb3095a9bd80d113d9277e30d9959"},{"url":"https://git.kernel.org/stable/c/f57b61624c86ef8f87f6e6b7dd0755de03d90e89"},{"url":"https://git.kernel.org/stable/c/011a0502801c8536f64141a2b61362c14f456544"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:18:12.071Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}