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(parent: 336a70f) | patch
9p: do not crash on unknown lock status code
authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Mon, 29 Dec 2014 13:00:19 +0000 (15:00 +0200)
committerEric Van Hensbergen <ericvh@gmail.com>
Fri, 20 Mar 2015 14:34:41 +0000 (07:34 -0700)
commit2977de72cd6458884b94b3c841a0351ad543ee13
tree40f638e64883cb5224c1c2c0a6a3c34579c9f737tree | snapshot
parent336a70f61a3f19ddddfc54c121f8017706e40416commit | diff
9p: do not crash on unknown lock status code

Current 9p implementation will crash whole system if sees unknown lock
status code. It's trivial target for DOS: 9p server can produce such
code easily.

Let's fallback more gracefully: warning in dmesg + -ENOLCK.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
fs/9p/vfs_file.c diff | blob | history
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