CVE-2024-43838 bpf: fix overflow check in adjust_jmp_off()

In the Linux kernel, the following vulnerability has been resolved: bpf: fix overflow check in adjustjmpoff adjustjmpoff incorrectly used the insn-imm field for all overflow check, which is incorrect as that should only be done or the BPFJMP32 | BPFJA case, not the general jump instruction case...

CVE-2024-43838

CVE-2024-43838 affects the Linux kernel BPF path. The root cause is an incorrect overflow check in adjust_jmp_off(), where insn->imm was used for all overflow checks instead of insn->off for the general jump case. The issue is resolved by using insn->off for the overflow check in the gen...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from an overflow checking issue in the adjustjmpoff function...