forked from luck/tmp_suning_uos_patched
tomoyo: Check address length before reading address family
KMSAN will complain if valid address length passed to bind()/connect()/ sendmsg() is shorter than sizeof("struct sockaddr"->sa_family) bytes. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jamorris@linux.microsoft.com>
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@ -505,6 +505,8 @@ static int tomoyo_check_inet_address(const struct sockaddr *addr,
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{
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struct tomoyo_inet_addr_info *i = &address->inet;
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if (addr_len < offsetofend(struct sockaddr, sa_family))
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return 0;
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switch (addr->sa_family) {
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case AF_INET6:
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if (addr_len < SIN6_LEN_RFC2133)
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@ -594,6 +596,8 @@ static int tomoyo_check_unix_address(struct sockaddr *addr,
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{
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struct tomoyo_unix_addr_info *u = &address->unix0;
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if (addr_len < offsetofend(struct sockaddr, sa_family))
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return 0;
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if (addr->sa_family != AF_UNIX)
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return 0;
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u->addr = ((struct sockaddr_un *) addr)->sun_path;
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