luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

NFSD: fix dest to src mount in inter-server COPY

Browse Source 
commit 614c9750173e412663728215152cc6d12bcb3425 upstream.

A cleanup of the inter SSC copy needs to call fput() of the source
file handle to make sure that file structure is freed as well as
drop the reference on the superblock to unmount the source server.

Fixes: 36e1e5ba90 ("NFSD: Fix use-after-free warning when doing inter-server copy")
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Olga Kornievskaia 2021-03-09 09:41:14 -05:00 committed by Greg Kroah-Hartman
parent 800369d61a
commit 982b899ba6
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/nfsd/nfs4proc.c
View File

@ -1299,7 +1299,7 @@ nfsd4_cleanup_inter_ssc(struct vfsmount *ss_mnt, struct nfsd_file *src,
struct nfsd_file *dst)
{
nfs42_ssc_close(src->nf_file);
/* 'src' is freed by nfsd4_do_async_copy */
fput(src->nf_file);
nfsd_file_put(dst);
mntput(ss_mnt);
}