{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93134","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-17T16:02:15.087Z","datePublished":"2026-09-17T16:11:36.077Z","dateUpdated":"2026-09-17T16:11:36.077Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:11:36.077Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nprintk: Fix possible console use-after-free\n\nWhen emitting a record via legacy printing, it is possible that a handover\nto another legacy printing context occurs. When a context has performed a\nhandover, the console SRCU read lock is released and the pointer to the\nconsole struct might now be invalid. Therefore, after calling\nnbcon_legacy_emit_next_record() or console_emit_next_record(), it is\nnecessary to check if a handover occurred _before_ further @con usage.\n\nSashiko pointed out that console_flush_one_record() was not doing this.\n\nIn console_flush_one_record(), after emitting a record, move the further\nusage of @con after the handover check."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/printk/printk.c"],"versions":[{"version":"c158834b223fbfab3a14855ac203b8d9cddbbefd","lessThan":"f0104a7b730de32eefb3d4a27279592b5504ad59","status":"affected","versionType":"git"},{"version":"c158834b223fbfab3a14855ac203b8d9cddbbefd","lessThan":"fbf9bb81b21537ede387a31cc586f1d2ce66a74e","status":"affected","versionType":"git"},{"version":"c158834b223fbfab3a14855ac203b8d9cddbbefd","lessThan":"8f194dee0c0d1223255bae1429e1939882f540fc","status":"affected","versionType":"git"},{"version":"c158834b223fbfab3a14855ac203b8d9cddbbefd","lessThan":"36630cafbeede0b64c370edb2f7b4094327ee1e0","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/printk/printk.c"],"versions":[{"version":"6.12","status":"affected"},{"version":"0","lessThan":"6.12","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","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":"6.12","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/f0104a7b730de32eefb3d4a27279592b5504ad59"},{"url":"https://git.kernel.org/stable/c/fbf9bb81b21537ede387a31cc586f1d2ce66a74e"},{"url":"https://git.kernel.org/stable/c/8f194dee0c0d1223255bae1429e1939882f540fc"},{"url":"https://git.kernel.org/stable/c/36630cafbeede0b64c370edb2f7b4094327ee1e0"}],"title":"printk: Fix possible console use-after-free","x_generator":{"engine":"bippy-1.2.0"}}}}