{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23156","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.978Z","datePublished":"2026-02-14T16:01:23.215Z","dateUpdated":"2026-05-11T22:01:17.796Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:01:17.796Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nefivarfs: fix error propagation in efivar_entry_get()\n\nefivar_entry_get() always returns success even if the underlying\n__efivar_entry_get() fails, masking errors.\n\nThis may result in uninitialized heap memory being copied to userspace\nin the efivarfs_file_read() path.\n\nFix it by returning the error from __efivar_entry_get()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/efivarfs/vars.c"],"versions":[{"version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","lessThan":"3960f1754664661a970dc9ebbab44ff93a0b4c42","status":"affected","versionType":"git"},{"version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","lessThan":"510a16f1c5c1690b33504052bc13fbc2772c23f8","status":"affected","versionType":"git"},{"version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","lessThan":"89b8ca709eeeabcc11ebba64806677873a2787a8","status":"affected","versionType":"git"},{"version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","lessThan":"e4e15a0a4403c96d9898d8398f0640421df9cb16","status":"affected","versionType":"git"},{"version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","lessThan":"4b22ec1685ce1fc0d862dcda3225d852fb107995","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/efivarfs/vars.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.1.162","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.123","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.69","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.9","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","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":"6.0","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.123"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.69"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.18.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/3960f1754664661a970dc9ebbab44ff93a0b4c42"},{"url":"https://git.kernel.org/stable/c/510a16f1c5c1690b33504052bc13fbc2772c23f8"},{"url":"https://git.kernel.org/stable/c/89b8ca709eeeabcc11ebba64806677873a2787a8"},{"url":"https://git.kernel.org/stable/c/e4e15a0a4403c96d9898d8398f0640421df9cb16"},{"url":"https://git.kernel.org/stable/c/4b22ec1685ce1fc0d862dcda3225d852fb107995"}],"title":"efivarfs: fix error propagation in efivar_entry_get()","x_generator":{"engine":"bippy-1.2.0"}}}}