linux-stable/fs/9p
Dominique Martinet b4dc44b3ca 9p locks: fix glock.client_id leak in do_lock
the 9p client code overwrites our glock.client_id pointing to a static
buffer by an allocated string holding the network provided value which
we do not care about; free and reset the value as appropriate.

This is almost identical to the leak in v9fs_file_getlock() fixed by
Al Viro in commit ce85dd58ad ("9p: we are leaking glock.client_id
in v9fs_file_getlock()"), which was returned as an error by a coverity
false positive -- while we are here attempt to make the code slightly
more robust to future change of the net/9p/client code and hopefully
more clear to coverity that there is no problem.

Link: http://lkml.kernel.org/r/1536339057-21974-5-git-send-email-asmadeus@codewreck.org
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
2018-09-08 01:52:35 +09:00
..
acl.c 9p: acl: fix uninitialized iattr access 2018-09-08 01:51:50 +09:00
acl.h
cache.c fscache: Pass object size in rather than calling back for it 2018-04-06 14:05:14 +01:00
cache.h fs: 9p: cache.h: Add #define of include guard 2015-11-11 02:19:50 -05:00
fid.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
fid.h 9p: use clone_fid() 2016-08-03 11:12:12 -04:00
Kconfig fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at 2018-01-01 12:45:37 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
v9fs.c 9p locks: add mount option for lock retry interval 2018-09-08 01:40:06 +09:00
v9fs.h 9p locks: add mount option for lock retry interval 2018-09-08 01:40:06 +09:00
v9fs_vfs.h 9p: switch p9_client_read() to passing struct iov_iter * 2015-04-11 22:28:27 -04:00
vfs_addr.c 9p: set page uptodate when required in write_end() 2017-10-11 09:30:08 -07:00
vfs_dentry.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
vfs_dir.c 9p: do not trust pdu content for stat item size 2018-09-08 01:40:06 +09:00
vfs_file.c 9p locks: fix glock.client_id leak in do_lock 2018-09-08 01:52:35 +09:00
vfs_inode.c get rid of 'opened' argument of ->atomic_open() - part 3 2018-07-12 10:04:20 -04:00
vfs_inode_dotl.c get rid of 'opened' argument of ->atomic_open() - part 3 2018-07-12 10:04:20 -04:00
vfs_super.c fs/9p: don't set SB_NOATIME by default 2018-04-05 21:36:22 -07:00
xattr.c fs/9p/xattr.c: catch the error of p9_client_clunk when setting xattr failed 2018-08-13 09:35:16 +09:00
xattr.h 9p: xattr simplifications 2015-11-13 20:34:33 -05:00