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d54f87f09a
While meson_sm_read_efuse() doesn't overflow, the string is not zero terminated and env_set*() will buffer overflow and add random characters to environment. Acked-by: Viacheslav Bocharov <adeep@lexina.in> Link: https://lore.kernel.org/r/20240320-u-boot-fix-p200-serial-v2-1-972be646a301@linaro.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
43 lines
972 B
C
43 lines
972 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2021 Vyacheslav Bocharov
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* Author: Vyacheslav Bocharov <adeep@lexina.in>
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*/
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#include <common.h>
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#include <dm.h>
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#include <init.h>
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#include <net.h>
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#include <asm/io.h>
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#include <asm/arch/axg.h>
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#include <asm/arch/sm.h>
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#include <asm/arch/eth.h>
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#include <asm/arch/mem.h>
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#include <u-boot/crc.h>
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int misc_init_r(void)
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{
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u8 mac_addr[ARP_HLEN + 1];
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char serial[SM_SERIAL_SIZE];
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u32 sid;
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if (!meson_sm_get_serial(serial, SM_SERIAL_SIZE)) {
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sid = crc32(0, (unsigned char *)serial, SM_SERIAL_SIZE);
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/* Ensure the NIC specific bytes of the mac are not all 0 */
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if ((sid & 0xffff) == 0)
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sid |= 0x800000;
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/* OUI registered MAC address */
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mac_addr[0] = 0x10;
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mac_addr[1] = 0x27;
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mac_addr[2] = 0xBE;
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mac_addr[3] = (sid >> 16) & 0xff;
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mac_addr[4] = (sid >> 8) & 0xff;
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mac_addr[5] = (sid >> 0) & 0xff;
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mac_addr[ARP_HLEN] = '\0';
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eth_env_set_enetaddr("ethaddr", mac_addr);
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}
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return 0;
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}
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