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| author | Renaud Lottiaux <renaud.lottiaux@kerlabs.com> | 2009-06-30 11:41:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-07-02 16:51:07 -0700 |
| commit | 114612139b431f6e908dc3c4f78f4dde62310155 (patch) | |
| tree | 073939a36b6cc95665b84d825e39cd4fe926855e /mm/mempool.c | |
| parent | 6e9b0f6d101c80eb88a648d6746031ca77043043 (diff) | |
| download | lwn-114612139b431f6e908dc3c4f78f4dde62310155.tar.gz lwn-114612139b431f6e908dc3c4f78f4dde62310155.zip | |
bsdacct: fix access to invalid filp in acct_on()
commit df279ca8966c3de83105428e3391ab17690802a9 upstream.
The file opened in acct_on and freshly stored in the ns->bacct struct can
be closed in acct_file_reopen by a concurrent call after we release
acct_lock and before we call mntput(file->f_path.mnt).
Record file->f_path.mnt in a local variable and use this variable only.
Signed-off-by: Renaud Lottiaux <renaud.lottiaux@kerlabs.com>
Signed-off-by: Louis Rilling <louis.rilling@kerlabs.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm/mempool.c')
0 files changed, 0 insertions, 0 deletions