CVE-2026-23156
efivarfs: fix error propagation in efivar_entry_get()
In the Linux kernel, the following vulnerability has been resolved:
efivarfs: fix error propagation in efivar_entry_get()
efivar_entry_get() always returns success even if the underlying
__efivar_entry_get() fails, masking errors.
This may result in uninitialized heap memory being copied to userspace
in the efivarfs_file_read() path.
Fix it by returning the error from __efivar_entry_get().
Produtos afetados
Linux · LinuxQuer saber se a sua infraestrutura está exposta a isto?
Falar com a TrueHacking →Referências
https://git.kernel.org/stable/c/3960f1754664661a970dc9ebbab44ff93a0b4c42https://git.kernel.org/stable/c/4b22ec1685ce1fc0d862dcda3225d852fb107995https://git.kernel.org/stable/c/510a16f1c5c1690b33504052bc13fbc2772c23f8https://git.kernel.org/stable/c/89b8ca709eeeabcc11ebba64806677873a2787a8https://git.kernel.org/stable/c/e4e15a0a4403c96d9898d8398f0640421df9cb16