diff options
author | Steve French <sfrench@us.ibm.com> | 2009-04-30 15:36:52 +0000 |
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committer | Steve French <sfrench@us.ibm.com> | 2009-04-30 15:36:52 +0000 |
commit | 912bc6ae3de99c7bada4577d4341ace4ee59b5be (patch) | |
tree | 28fd1a4bb9e4b05aa833285b46df169f12c0e24d /fs/autofs4/dev-ioctl.c | |
parent | d37dc42ab6f040b8f0f2962ab219c5b2accf748d (diff) | |
parent | 091438dd5668396328a3419abcbc6591159eb8d1 (diff) |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'fs/autofs4/dev-ioctl.c')
-rw-r--r-- | fs/autofs4/dev-ioctl.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c index 9e5ae8a4f5c..84168c0dcc2 100644 --- a/fs/autofs4/dev-ioctl.c +++ b/fs/autofs4/dev-ioctl.c @@ -54,11 +54,10 @@ static int check_name(const char *name) * Check a string doesn't overrun the chunk of * memory we copied from user land. */ -static int invalid_str(char *str, void *end) +static int invalid_str(char *str, size_t size) { - while ((void *) str <= end) - if (!*str++) - return 0; + if (memchr(str, 0, size)) + return 0; return -EINVAL; } @@ -138,8 +137,7 @@ static int validate_dev_ioctl(int cmd, struct autofs_dev_ioctl *param) } if (param->size > sizeof(*param)) { - err = invalid_str(param->path, - (void *) ((size_t) param + param->size)); + err = invalid_str(param->path, param->size - sizeof(*param)); if (err) { AUTOFS_WARN( "path string terminator missing for cmd(0x%08x)", @@ -488,7 +486,7 @@ static int autofs_dev_ioctl_requester(struct file *fp, } path = param->path; - devid = sbi->sb->s_dev; + devid = new_encode_dev(sbi->sb->s_dev); param->requester.uid = param->requester.gid = -1; |