void sk_decode_filter(struct sock_filter *filt, struct sock_filter *to)
{
	static const u16 decodes[] = {
		[BPF_S_ALU_ADD_K]	= BPF_ALU|BPF_ADD|BPF_K,
		[BPF_S_ALU_ADD_X]	= BPF_ALU|BPF_ADD|BPF_X,
		[BPF_S_ALU_SUB_K]	= BPF_ALU|BPF_SUB|BPF_K,
		[BPF_S_ALU_SUB_X]	= BPF_ALU|BPF_SUB|BPF_X,
		[BPF_S_ALU_MUL_K]	= BPF_ALU|BPF_MUL|BPF_K,
		[BPF_S_ALU_MUL_X]	= BPF_ALU|BPF_MUL|BPF_X,
		[BPF_S_ALU_DIV_X]	= BPF_ALU|BPF_DIV|BPF_X,
		[BPF_S_ALU_MOD_K]	= BPF_ALU|BPF_MOD|BPF_K,
		[BPF_S_ALU_MOD_X]	= BPF_ALU|BPF_MOD|BPF_X,
		[BPF_S_ALU_AND_K]	= BPF_ALU|BPF_AND|BPF_K,
		[BPF_S_ALU_AND_X]	= BPF_ALU|BPF_AND|BPF_X,
		[BPF_S_ALU_OR_K]	= BPF_ALU|BPF_OR|BPF_K,
		[BPF_S_ALU_OR_X]	= BPF_ALU|BPF_OR|BPF_X,
		[BPF_S_ALU_XOR_K]	= BPF_ALU|BPF_XOR|BPF_K,
		[BPF_S_ALU_XOR_X]	= BPF_ALU|BPF_XOR|BPF_X,
		[BPF_S_ALU_LSH_K]	= BPF_ALU|BPF_LSH|BPF_K,
		[BPF_S_ALU_LSH_X]	= BPF_ALU|BPF_LSH|BPF_X,
		[BPF_S_ALU_RSH_K]	= BPF_ALU|BPF_RSH|BPF_K,
		[BPF_S_ALU_RSH_X]	= BPF_ALU|BPF_RSH|BPF_X,
		[BPF_S_ALU_NEG]		= BPF_ALU|BPF_NEG,
		[BPF_S_LD_W_ABS]	= BPF_LD|BPF_W|BPF_ABS,
		[BPF_S_LD_H_ABS]	= BPF_LD|BPF_H|BPF_ABS,
		[BPF_S_LD_B_ABS]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_PROTOCOL]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_PKTTYPE]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_IFINDEX]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_NLATTR]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_NLATTR_NEST]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_MARK]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_QUEUE]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_HATYPE]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_RXHASH]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_CPU]		= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_ALU_XOR_X]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_SECCOMP_LD_W] = BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_VLAN_TAG]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_VLAN_TAG_PRESENT] = BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_ANC_PAY_OFFSET]	= BPF_LD|BPF_B|BPF_ABS,
		[BPF_S_LD_W_LEN]	= BPF_LD|BPF_W|BPF_LEN,
		[BPF_S_LD_W_IND]	= BPF_LD|BPF_W|BPF_IND,
		[BPF_S_LD_H_IND]	= BPF_LD|BPF_H|BPF_IND,
		[BPF_S_LD_B_IND]	= BPF_LD|BPF_B|BPF_IND,
		[BPF_S_LD_IMM]		= BPF_LD|BPF_IMM,
		[BPF_S_LDX_W_LEN]	= BPF_LDX|BPF_W|BPF_LEN,
		[BPF_S_LDX_B_MSH]	= BPF_LDX|BPF_B|BPF_MSH,
		[BPF_S_LDX_IMM]		= BPF_LDX|BPF_IMM,
		[BPF_S_MISC_TAX]	= BPF_MISC|BPF_TAX,
		[BPF_S_MISC_TXA]	= BPF_MISC|BPF_TXA,
		[BPF_S_RET_K]		= BPF_RET|BPF_K,
		[BPF_S_RET_A]		= BPF_RET|BPF_A,
		[BPF_S_ALU_DIV_K]	= BPF_ALU|BPF_DIV|BPF_K,
		[BPF_S_LD_MEM]		= BPF_LD|BPF_MEM,
		[BPF_S_LDX_MEM]		= BPF_LDX|BPF_MEM,
		[BPF_S_ST]		= BPF_ST,
		[BPF_S_STX]		= BPF_STX,
		[BPF_S_JMP_JA]		= BPF_JMP|BPF_JA,
		[BPF_S_JMP_JEQ_K]	= BPF_JMP|BPF_JEQ|BPF_K,
		[BPF_S_JMP_JEQ_X]	= BPF_JMP|BPF_JEQ|BPF_X,
		[BPF_S_JMP_JGE_K]	= BPF_JMP|BPF_JGE|BPF_K,
		[BPF_S_JMP_JGE_X]	= BPF_JMP|BPF_JGE|BPF_X,
		[BPF_S_JMP_JGT_K]	= BPF_JMP|BPF_JGT|BPF_K,
		[BPF_S_JMP_JGT_X]	= BPF_JMP|BPF_JGT|BPF_X,
		[BPF_S_JMP_JSET_K]	= BPF_JMP|BPF_JSET|BPF_K,
		[BPF_S_JMP_JSET_X]	= BPF_JMP|BPF_JSET|BPF_X,
	};
	u16 code;

	code = filt->code;

	to->code = decodes[code];
	to->jt = filt->jt;
	to->jf = filt->jf;
	to->k = filt->k;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.