SUSE CVE-2023-53634

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fixed a BTI error on returning to patched function When BPFTRAMPFCALLORIG is set, BPF trampoline uses BLR to jump back to the instruction next to call site to call the patched function. For BTI-enabled kernel, the...

CVE-2023-53634

CVE-2023-53634 (bpf, arm64 BTI) : Technical details across multiple feeds show a Linux kernel BTI-related flaw in BPF trampoline handling. When BPF_TRAMP_F_CALL_ORIG is set, trampolines jump back to the patched function via BLR. In BTI-enabled kernels, the instruction after the call site is typic...