{"id":"CVE-2026-23156","summary":"efivarfs: fix error propagation in efivar_entry_get()","details":"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().","modified":"2026-05-18T05:58:32.952011870Z","published":"2026-02-14T16:01:23.215Z","related":["ALSA-2026:4012","SUSE-SU-2026:0962-1","SUSE-SU-2026:1081-1","SUSE-SU-2026:20667-1","SUSE-SU-2026:20720-1","SUSE-SU-2026:20838-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1","SUSE-SU-2026:20931-1","SUSE-SU-2026:21284-1","openSUSE-SU-2026:20416-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23156.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3960f1754664661a970dc9ebbab44ff93a0b4c42"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4b22ec1685ce1fc0d862dcda3225d852fb107995"},{"type":"WEB","url":"https://git.kernel.org/stable/c/510a16f1c5c1690b33504052bc13fbc2772c23f8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/89b8ca709eeeabcc11ebba64806677873a2787a8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e4e15a0a4403c96d9898d8398f0640421df9cb16"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23156.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23156"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2d82e6227ea189c0589e7383a36616ac2a2d248c"},{"fixed":"3960f1754664661a970dc9ebbab44ff93a0b4c42"},{"fixed":"510a16f1c5c1690b33504052bc13fbc2772c23f8"},{"fixed":"89b8ca709eeeabcc11ebba64806677873a2787a8"},{"fixed":"e4e15a0a4403c96d9898d8398f0640421df9cb16"},{"fixed":"4b22ec1685ce1fc0d862dcda3225d852fb107995"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23156.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.1.162"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.123"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.69"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23156.json"}}],"schema_version":"1.7.5"}