AcoSail/kernel_optimize_test
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80ff001724
kernel_optimize_test/fs/nfs
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Yao Liu 80ff001724 nfs: Fix NULL pointer dereference of dev_name 
There is a NULL pointer dereference of dev_name in nfs_parse_devname()

The oops looks something like:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
  ...
  RIP: 0010:nfs_fs_mount+0x3b6/0xc20 [nfs]
  ...
  Call Trace:
   ? ida_alloc_range+0x34b/0x3d0
   ? nfs_clone_super+0x80/0x80 [nfs]
   ? nfs_free_parsed_mount_data+0x60/0x60 [nfs]
   mount_fs+0x52/0x170
   ? __init_waitqueue_head+0x3b/0x50
   vfs_kern_mount+0x6b/0x170
   do_mount+0x216/0xdc0
   ksys_mount+0x83/0xd0
   __x64_sys_mount+0x25/0x30
   do_syscall_64+0x65/0x220
   entry_SYSCALL_64_after_hwframe+0x49/0xbe

Fix this by adding a NULL check on dev_name

Signed-off-by: Yao Liu <yotta.liu@ucloud.cn>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-01-28 12:08:30 -05:00
..
blocklayout NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
filelayout pNFS: Don't allocate more pages than we need to fit a layoutget response 2018-09-30 15:35:16 -04:00
flexfilelayout NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
cache_lib.c
cache_lib.h
callback_proc.c NFSv4.2 copy do not allocate memory under the lock 2018-11-22 13:54:46 -05:00
callback_xdr.c
callback.c nfs: fixed broken compilation in nfs_callback_up_net() 2018-12-31 11:25:16 -05:00
callback.h
client.c NFS/SUNRPC: don't lookup machine credential until rpcauth_bindcred(). 2018-12-19 13:52:45 -05:00
delegation.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
delegation.h NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
dir.c NFS: struct nfs_open_dir_context: convert rpc_cred pointer to cred. 2018-12-19 13:52:46 -05:00
direct.c nfs: don't dirty kernel pages read by direct-io 2018-12-02 09:43:56 -05:00
dns_resolve.c NFS: Fix up a typo in nfs_dns_ent_put 2018-10-29 16:58:04 -04:00
dns_resolve.h
export.c
file.c
fscache-index.c
fscache.c
fscache.h
getroot.c
inode.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
internal.h Merge branch 'mount.part1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-01-05 13:25:58 -08:00
io.c
iostat.h
Kconfig
Makefile
mount_clnt.c
namespace.c
netns.h
nfs.h
nfs2super.c
nfs2xdr.c
nfs3_fs.h
nfs3acl.c
nfs3client.c
nfs3proc.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs3super.c
nfs3xdr.c NFSv3: Improve NFSv3 performance when server returns no post-op attributes 2018-09-30 15:35:17 -04:00
nfs4_fs.h sunrpc: Add xprt after nfs4_test_session_trunk() 2019-01-02 12:05:19 -05:00
nfs4client.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs4file.c NFSv4.2 fix unnecessary retry in nfs4_copy_file_range 2019-01-15 11:24:49 -05:00
nfs4getroot.c
nfs4idmap.c
nfs4idmap.h
nfs4namespace.c
nfs4proc.c NFS client updates for Linux 4.21 2019-01-02 16:35:23 -08:00
nfs4renewd.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs4session.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
nfs4session.h
nfs4state.c NFSv4.2 fix async copy reboot recovery 2019-01-02 12:05:19 -05:00
nfs4super.c
nfs4sysctl.c
nfs4trace.c
nfs4trace.h NFS: Fix NFSv4 symbolic trace point output 2019-01-02 12:05:18 -05:00
nfs4xdr.c NFS: change sign of nfs_fh length 2018-10-23 12:22:21 -04:00
nfs42.h
nfs42proc.c NFSv4.2 copy do not allocate memory under the lock 2018-11-22 13:54:46 -05:00
nfs42xdr.c
nfsroot.c
nfstrace.c
nfstrace.h
pagelist.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
pnfs_dev.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
pnfs_nfs.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
pnfs.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
pnfs.h NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
proc.c NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'. 2018-12-19 13:52:46 -05:00
read.c NFS: Remove private spinlock in struct nfs_pgio_header 2018-09-30 15:35:17 -04:00
super.c nfs: Fix NULL pointer dereference of dev_name 2019-01-28 12:08:30 -05:00
symlink.c
sysctl.c
unlink.c NFS: remove unnecessary test for IS_ERR(cred) 2019-01-02 12:05:19 -05:00
write.c NFS client updates for Linux 4.21 2019-01-02 16:35:23 -08:00