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| author | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 14:17:05 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 14:17:05 -0500 |
| commit | 70c07e02625ec46d0ffbfce1acef42d660803528 (patch) | |
| tree | f500f1a4f93e72747fb08b0eefabb167dcdc5db9 /arch/parisc | |
| parent | 5d1769ac3d0ea5ff3a286b097c21faaf6a9e6859 (diff) | |
| parent | 2746b8623abce815aaae7afc946b1b39f8436f5a (diff) | |
| download | kernel_samsung_tuna-70c07e02625ec46d0ffbfce1acef42d660803528.zip kernel_samsung_tuna-70c07e02625ec46d0ffbfce1acef42d660803528.tar.gz kernel_samsung_tuna-70c07e02625ec46d0ffbfce1acef42d660803528.tar.bz2 | |
Merge branch 'viro'
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/hpux/sys_hpux.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c index 29b4d61..05273cc 100644 --- a/arch/parisc/hpux/sys_hpux.c +++ b/arch/parisc/hpux/sys_hpux.c @@ -468,19 +468,23 @@ int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2) if ( opcode == 1 ) { /* GETFSIND */ len = strlen_user((char *)arg1); printk(KERN_DEBUG "len of arg1 = %d\n", len); - - fsname = (char *) kmalloc(len+1, GFP_KERNEL); + if (len == 0) + return 0; + fsname = (char *) kmalloc(len, GFP_KERNEL); if ( !fsname ) { printk(KERN_DEBUG "failed to kmalloc fsname\n"); return 0; } - if ( copy_from_user(fsname, (char *)arg1, len+1) ) { + if ( copy_from_user(fsname, (char *)arg1, len) ) { printk(KERN_DEBUG "failed to copy_from_user fsname\n"); kfree(fsname); return 0; } + /* String could be altered by userspace after strlen_user() */ + fsname[len] = '\0'; + printk(KERN_DEBUG "that is '%s' as (char *)\n", fsname); if ( !strcmp(fsname, "hfs") ) { fstype = 0; |