The vulnerability of the bpf_tail_call_direct_fixup() function in the arch/x86/net/bpf_jit_comp.c module exposes network function support on the Linux kernel-based x86 platform, allowing attackers to cause system failures.

The vulnerability of the bpftailcalldirectfixup function in the arch/x86/net/bpfjitcomp.c module, which supports networking functions on the x86 kernel of the Linux operating system, is related to the reutilization of previously freed memory. Exploiting this vulnerability can allow an attacker to...

CVE-2021-20320

A flaw was found in s390 eBPF JIT in bpfjitinsn in arch/s390/net/bpfjitcomp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem...