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parisc: sys_hpux: NUL terminator is one past the end

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We allocate "len" number of chars so we should put the NUL at "len - 1"
to avoid corrupting memory.  Btw, strlen_user() is different from the
normal strlen() function because it includes NUL terminator in the
count.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Dan Carpenter 2014-07-31 18:20:20 +03:00 committed by Helge Deller
parent 68e370289c
commit 3067bbd1ad
1 changed files with 1 additions and 1 deletions
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2
arch/parisc/hpux/sys_hpux.c
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@ -456,7 +456,7 @@ int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
}
/* String could be altered by userspace after strlen_user() */
fsname[len] = '\0';
fsname[len - 1] = '\0';
printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname);
if ( !strcmp(fsname, "hfs") ) {