Hangbin Liu reported that some SCTP sockopt are allowing the user to get the kernel to allocate really large buffers by not having a ceiling on optlen.
This patchset address this issue (in patch 2), replace an GFP_ATOMIC that isn't needed and avoid calculating the option size multiple times in some setsockopt. Marcelo Ricardo Leitner (3): sctp: GFP_ATOMIC is not needed in sctp_setsockopt_events sctp: add a ceiling to optlen in some sockopts sctp: make use of pre-calculated len net/sctp/socket.c | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) -- 2.14.3
