diff options
| author | pfg <pfg@FreeBSD.org> | 2015-04-20 16:40:13 +0000 |
|---|---|---|
| committer | pfg <pfg@FreeBSD.org> | 2015-04-20 16:40:13 +0000 |
| commit | 2c313e6688983a83279ed1b7fc490299bb591a85 (patch) | |
| tree | aeeaf88a237291d5d4d6d18263620892d97d8494 /sys/fs | |
| parent | a9137e11b6252da2f9901ebd51b7a3f8e7bbc515 (diff) | |
| download | FreeBSD-src-2c313e6688983a83279ed1b7fc490299bb591a85.zip FreeBSD-src-2c313e6688983a83279ed1b7fc490299bb591a85.tar.gz | |
Prevent a double free.
This is similar to r281756 so set the ptr NULL after free as a safety belt
against future changes.
Obtained from: HardenedBSD (b2e77ced9ae213d358b44d98f552d9ae4636ecac)
Submitted by: Oliver Pinter
Revewed by: rmacklem
Diffstat (limited to 'sys/fs')
| -rw-r--r-- | sys/fs/nfsclient/nfs_clrpcops.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/fs/nfsclient/nfs_clrpcops.c b/sys/fs/nfsclient/nfs_clrpcops.c index 8a83802..7968353 100644 --- a/sys/fs/nfsclient/nfs_clrpcops.c +++ b/sys/fs/nfsclient/nfs_clrpcops.c @@ -537,8 +537,10 @@ nfsrpc_openrpc(struct nfsmount *nmp, vnode_t vp, u_int8_t *nfhp, int fhlen, (void) nfs_catnap(PZERO, ret, "nfs_open2"); } while (ret == NFSERR_DELAY); if (ret) { - if (ndp != NULL) + if (ndp != NULL) { FREE((caddr_t)ndp, M_NFSCLDELEG); + ndp = NULL; + } if (ret == NFSERR_STALECLIENTID || ret == NFSERR_STALEDONTRECOVER || ret == NFSERR_BADSESSION) |
