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authorDavid S. Miller <davem@davemloft.net>2013-09-27 13:46:04 -0700
committerDavid S. Miller <davem@davemloft.net>2013-09-27 13:46:04 -0700
commit2bd161a605f1f84a5fc8a4fe8410113a94f79355 (patch)
tree2a5bdbe12f328d0bbb7345a61aa35ca4916bb021 /arch
parent6cac446bd37d9381815fe4c2b0e7b1fd1085000c (diff)
downloadlinux-2bd161a605f1f84a5fc8a4fe8410113a94f79355.tar.gz
sparc64: Fix buggy strlcpy() conversion in ldom_reboot().
Commit 117a0c5fc9c2d06045bd217385b2b39ea426b5a6 ("sparc: kernel: using
strlcpy() instead of strcpy()") added a bug to ldom_reboot in
arch/sparc/kernel/ds.c

-		strcpy(full_boot_str + strlen("boot "), boot_command);
+				     strlcpy(full_boot_str + strlen("boot "), boot_command,
+				     			     sizeof(full_boot_str + strlen("boot ")));

That last sizeof() expression evaluates to sizeof(size_t) which is
not what was intended.

Also even the corrected:

     sizeof(full_boot_str) + strlen("boot ")

is not right as the destination buffer length is just plain
"sizeof(full_boot_str)" and that's what the final argument
should be.

Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/kernel/ds.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index 62d6b153ffa2..4d9ac8406f32 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -851,7 +851,7 @@ void ldom_reboot(const char *boot_command)
 
 		strcpy(full_boot_str, "boot ");
 		strlcpy(full_boot_str + strlen("boot "), boot_command,
-			sizeof(full_boot_str + strlen("boot ")));
+			sizeof(full_boot_str));
 		len = strlen(full_boot_str);
 
 		if (reboot_data_supported) {