signal: Add missing __user annotation to copy_siginfo_from_user_any

thejh · Christian Brauner · commit adc5d8757288 · 2021-01-11T12:55:00.000+01:00
copy_siginfo_from_user_any() takes a userspace pointer as second argument; annotate the parameter type accordingly. Signed-off-by: Jann Horn <jannh@google.com> Link: https://lore.kernel.org/r/20201207000252.138564-1-jannh@google.com Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
diff --git a/kernel/signal.c b/kernel/signal.c
@@ -3701,7 +3701,8 @@ static bool access_pidfd_pidns(struct pid *pid)
 	return true;
 }
 
-static int copy_siginfo_from_user_any(kernel_siginfo_t *kinfo, siginfo_t *info)
+static int copy_siginfo_from_user_any(kernel_siginfo_t *kinfo,
+		siginfo_t __user *info)
 {
 #ifdef CONFIG_COMPAT
 	/*

Original file line number	Diff line number	Diff line change
`@@ -3701,7 +3701,8 @@ static bool access_pidfd_pidns(struct pid *pid)`
`3701`	`3701`	`return true;`
`3702`	`3702`	`}`
`3703`	`3703`
`3704`		`-static int copy_siginfo_from_user_any(kernel_siginfo_t kinfo, siginfo_t info)`
	`3704`	`+static int copy_siginfo_from_user_any(kernel_siginfo_t *kinfo,`
	`3705`	`+ siginfo_t __user *info)`
`3705`	`3706`	`{`
`3706`	`3707`	`#ifdef CONFIG_COMPAT`
`3707`	`3708`	`/*`