* [PATCH] exportfs: Don't buffer overflow on exports that are too big.
@ 2014-01-08 18:47 Steve Dickson
2014-01-20 22:02 ` Steve Dickson
0 siblings, 1 reply; 2+ messages in thread
From: Steve Dickson @ 2014-01-08 18:47 UTC (permalink / raw)
To: Linux NFS Mailing list
Signe-doff-by: Steve Dickson <steved@redhat.com>
---
utils/exportfs/exportfs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c
index 9ea86cb..8c86790 100644
--- a/utils/exportfs/exportfs.c
+++ b/utils/exportfs/exportfs.c
@@ -452,6 +452,8 @@ static int test_export(char *path, int with_fsid)
bp += n;
len -= n;
qword_add(&bp, &len, path);
+ if (len < 1)
+ return 0;
snprintf(bp, len, " 3 %d 65534 65534 0\n", with_fsid ? NFSEXP_FSID : 0);
fd = open("/proc/net/rpc/nfsd.export/channel", O_WRONLY);
if (fd < 0)
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] exportfs: Don't buffer overflow on exports that are too big.
2014-01-08 18:47 [PATCH] exportfs: Don't buffer overflow on exports that are too big Steve Dickson
@ 2014-01-20 22:02 ` Steve Dickson
0 siblings, 0 replies; 2+ messages in thread
From: Steve Dickson @ 2014-01-20 22:02 UTC (permalink / raw)
To: Linux NFS Mailing list
On 08/01/14 13:47, Steve Dickson wrote:
> Signe-doff-by: Steve Dickson <steved@redhat.com>
Committed...
steved.
> ---
> utils/exportfs/exportfs.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c
> index 9ea86cb..8c86790 100644
> --- a/utils/exportfs/exportfs.c
> +++ b/utils/exportfs/exportfs.c
> @@ -452,6 +452,8 @@ static int test_export(char *path, int with_fsid)
> bp += n;
> len -= n;
> qword_add(&bp, &len, path);
> + if (len < 1)
> + return 0;
> snprintf(bp, len, " 3 %d 65534 65534 0\n", with_fsid ? NFSEXP_FSID : 0);
> fd = open("/proc/net/rpc/nfsd.export/channel", O_WRONLY);
> if (fd < 0)
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-01-08 18:47 [PATCH] exportfs: Don't buffer overflow on exports that are too big Steve Dickson
2014-01-20 22:02 ` Steve Dickson
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