修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/security/tomoyo/network.c
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@@ -233,14 +233,14 @@
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 {
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 	u8 * const a_perm =
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 		&container_of(a, struct tomoyo_inet_acl, head)->perm;
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-	u8 perm = *a_perm;
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+	u8 perm = READ_ONCE(*a_perm);
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 	const u8 b_perm = container_of(b, struct tomoyo_inet_acl, head)->perm;
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 	if (is_delete)
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 		perm &= ~b_perm;
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 	else
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 		perm |= b_perm;
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-	*a_perm = perm;
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+	WRITE_ONCE(*a_perm, perm);
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 	return !perm;
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 }
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@@ -259,14 +259,14 @@
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 {
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 	u8 * const a_perm =
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 		&container_of(a, struct tomoyo_unix_acl, head)->perm;
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-	u8 perm = *a_perm;
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+	u8 perm = READ_ONCE(*a_perm);
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 	const u8 b_perm = container_of(b, struct tomoyo_unix_acl, head)->perm;
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 	if (is_delete)
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 		perm &= ~b_perm;
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 	else
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 		perm |= b_perm;
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-	*a_perm = perm;
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+	WRITE_ONCE(*a_perm, perm);
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 	return !perm;
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 }
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@@ -505,6 +505,8 @@
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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 @@
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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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@@ -609,7 +613,7 @@
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 static bool tomoyo_kernel_service(void)
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 {
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 	/* Nothing to do if I am a kernel service. */
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-	return uaccess_kernel();
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+	return (current->flags & (PF_KTHREAD | PF_IO_WORKER)) == PF_KTHREAD;
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 }
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 /**