CVE-2019-13233

In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modifyldt and a BR exception for an MPX bounds violation...

Linux - Use-After-Free via race Between modify_ldt() and #BR Exception Exploit

/ When a BR exception is raised because of an MPX bounds violation, Linux parses the faulting instruction and computes the linear address of its memory operand. If the userspace instruction is in 32-bit code, this involves looking up the correct segment descriptor and adding the segment offset to...

Linux - Use-After-Free via race Between modify_ldt() and #BR Exception

Linux - Use-After-Free via race Between modifyldt and BR Exception / When a BR exception is raised because of an MPX bounds violation, Linux parses the faulting instruction and computes the linear address of its memory operand. If the userspace instruction is in 32-bit code, this involves looking...

Linux - Use-After-Free via race Between modify_ldt() and #BR Exception

/ When a BR exception is raised because of an MPX bounds violation, Linux parses the faulting instruction and computes the linear address of its memory operand. If the userspace instruction is in 32-bit code, this involves looking up the correct segment descriptor and adding the segment offset to...