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core: fix possible unaligned access in nm_utils_get_ipv6_interface_identifier()

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Fixes: e2270040c0 ('core: use Interface Identifiers for IPv6 SLAAC addresses')
This commit is contained in:
Thomas Haller 2022-12-03 19:52:47 +01:00
parent 07ef13b9cc
commit 0f4114c27c
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GPG key ID: 29C2366E4DFC5728
1 changed files with 1 additions and 1 deletions
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src/core/nm-core-utils.c
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@ -3278,7 +3278,7 @@ nm_utils_get_ipv6_interface_identifier(NMLinkType link_type,
case NM_LINK_TYPE_GRE:
/* Hardware address is the network-endian IPv4 address */
g_return_val_if_fail(hwaddr_len == 4, FALSE);
addr = *(guint32 *) hwaddr;
addr = unaligned_read_ne32(hwaddr);
out_iid->id_u8[0] = get_gre_eui64_u_bit(addr);
out_iid->id_u8[1] = 0x00;
out_iid->id_u8[2] = 0x5E;