Messages in this thread |  | | Date | Sat, 7 Apr 2018 11:40:18 -0400 | From | Kevin Easton <> | Subject | [PATCH v2 0/2] af_key: Fix for sadb_key memcpy read overrun |
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As found by syzbot, af_key does not properly validate the key length in sadb_key messages from userspace. This can result in copying from beyond the end of the sadb_key part of the message, or indeed beyond the end of the entire packet.
Both these patches apply cleanly to ipsec-next. Based on Steffen's feedback I have re-ordered them so that the fix only is in patch 1, which I would suggest is also a stable tree candidate, whereas patch 2 is a cleanup only.
Kevin Easton (2): af_key: Always verify length of provided sadb_key af_key: Use DIV_ROUND_UP() instead of open-coded equivalent
net/key/af_key.c | 58 ++++++++++++++++++++++++++++++++++++++++---------------- 1 file changed, 42 insertions(+), 16 deletions(-)
-- 2.8.1
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