The vulnerability of the `ib_prctl_set()` function in the Linux operating system’s kernel allows a hacker to gain access to protected information.

The vulnerability of the ibprctlset function in the Linux operating system’s kernel is due to incorrect activation of error protection mechanisms related to speculative execution in processors. Exploiting this vulnerability can allow a remote attacker to gain access to protected information...

Exploit for Externally Controlled Reference to a Resource in Another Sphere in Linux Linux_Kernel

Bypassing Spectre-BTI User Space Mitigations on Linux Th...

ASB-A-169505929

In ibprctlset of bugs.c, there is a possible way to re-enable indirect branch speculation due to a permissions bypass. This could lead to local information disclosure via a Spectre v2 attack with no additional execution privileges needed. User interaction is not needed for exploitation...