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| author | Eric Andersen <andersen@codepoet.org> | 2004-07-26 12:05:12 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2004-07-26 12:05:12 +0000 |
| commit | 882cec3e40af63d1866cab7b1ce322d70f94c7df (patch) | |
| tree | 3e4b67444ff26ab535ab703918f7337b14f69538 /util-linux | |
| parent | 29128cd4122c6f5edad767363615681bee1db04f (diff) | |
| download | busybox-882cec3e40af63d1866cab7b1ce322d70f94c7df.tar.gz | |
YAEGASHI Takeshi writes:
Hi,
With the following /etc/fstab (any two or more lines of nfs), mount -a
-t nfs causes a segmentation faults.
server:/exports/aaa /mnt/aaa nfs defaults 0 0
server:/exprots/bbb /mnt/bbb nfs defaults 0 0
In util-linux/nfsmount.c, it overwrites malloc'ed pointer *mount_opts
with a static pointer. With this patch it does proper memory realloc
and data copy instead.
Diffstat (limited to 'util-linux')
| -rw-r--r-- | util-linux/nfsmount.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/util-linux/nfsmount.c b/util-linux/nfsmount.c index 34f23f5aa..0ebab80f6 100644 --- a/util-linux/nfsmount.c +++ b/util-linux/nfsmount.c @@ -315,7 +315,7 @@ int nfsmount(const char *spec, const char *node, int *flags, char new_opts[1024]; struct timeval total_timeout; enum clnt_stat clnt_stat; - static struct nfs_mount_data data; + struct nfs_mount_data data; char *opt, *opteq; int val; struct hostent *hp; @@ -602,10 +602,9 @@ int nfsmount(const char *spec, const char *node, int *flags, #endif data.version = nfs_mount_version; - *mount_opts = (char *) &data; if (*flags & MS_REMOUNT) - return 0; + goto copy_data_and_return; /* * If the previous mount operation on the same host was @@ -857,6 +856,9 @@ int nfsmount(const char *spec, const char *node, int *flags, auth_destroy(mclient->cl_auth); clnt_destroy(mclient); close(msock); +copy_data_and_return: + *mount_opts = xrealloc(*mount_opts, sizeof(data)); + memcpy(*mount_opts, &data, sizeof(data)); return 0; /* abort */ |