CVE-2024-43838 Information

Description

In the Linux kernel the following vulnerability has been resolved:

bpf: fix overflow check in adjust_jmp_off()

adjust_jmp_off() incorrectly used the insn->imm field for all overflow check which is incorrect as that should only be done or the BPF_JMP32 | BPF_JA case not the general jump instruction case. Fix it by using insn->off for overflow check in the general case.

Reference

https://git.kernel.org/stable/c/345652866a8869825a2a582ee5a28d75141f184a https://git.kernel.org/stable/c/4a04b4f0de59dd5c621e78f15803ee0b0544eeb8