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authorTomas Bortoli <tomasbortoli@gmail.com>2018-07-23 17:44:04 +0200
committerDominique Martinet <dominique.martinet@cea.fr>2018-08-13 09:34:58 +0900
commitf984579a01d85166ee7380204a96d978a67687a1 (patch)
tree6921952e63cd2ec0cb11625de49fb4395e0d4ce4 /fs/9p
parent9f476d7c540cb57556d3cc7e78704e6cd5100f5f (diff)
9p: validate PDU length
This commit adds length check for the PDU size. The size contained in the header has to match the actual size, except for TCP (trans_fd.c) where actual length is not known ahead and the header's length will be checked only against the validity range. Link: http://lkml.kernel.org/r/20180723154404.2406-1-tomasbortoli@gmail.com Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com> Reported-by: syzbot+65c6b72f284a39d416b4@syzkaller.appspotmail.com To: Eric Van Hensbergen <ericvh@gmail.com> To: Ron Minnich <rminnich@sandia.gov> To: Latchesar Ionkov <lucho@ionkov.net> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
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