CVE-2026-57843

NetBSD contains an information disclosure vulnerability in mmopen within sys/dev/mm.c that allows unprivileged local users to obtain real kernel virtual addresses by opening world-accessible devices such as /dev/null or /dev/zero, which incorrectly receive the PKKMEM process flag. Attackers can...

CVE-2026-57843

CVE-2026-57843 is an information disclosure vulnerability in NetBSD affecting the mm_open() function in sys/dev/mm.c. The root cause is that world-accessible devices such as /dev/null and /dev/zero are incorrectly assigned the PK_KMEM process flag. This allows unprivileged local users to bypass t...

EUVD-2026-76107

NetBSD contains an information disclosure vulnerability in mmopen within sys/dev/mm.c that allows unprivileged local users to obtain real kernel virtual addresses by opening world-accessible devices such as /dev/null or /dev/zero, which incorrectly receive the PKKMEM process flag. Attackers can...

CVE-2026-57843 NetBSD mm_open() PK_KMEM Flag Kernel Pointer Information Disclosure

NetBSD contains an information disclosure vulnerability in mmopen within sys/dev/mm.c that allows unprivileged local users to obtain real kernel virtual addresses by opening world-accessible devices such as /dev/null or /dev/zero, which incorrectly receive the PKKMEM process flag. Attackers can...