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Description: ipv4: Invalid IP options could cause skb->dst drop
References:
http://seclists.org/oss-sec/2017/q1/414
https://patchwork.ozlabs.org/patch/724136/
Notes:
bwh> This was actually introduced in 2.6.35 by commit f84af32cbca70
bwh> ("net: ip_queue_rcv_skb() helper").
Bugs:
upstream: released (4.10-rc8) [34b2cef20f19c87999fff3da4071e66937db9644]
4.9-upstream-stable: released (4.9.11) [f5b54446630a973e1f27b68599366bbd0ac53066]
3.16-upstream-stable: released (3.16.41) [ipv4-keep-skb-dst-around-in-presence-of-ip-options.patch]
3.2-upstream-stable: released (3.2.88) [ipv4-keep-skb-dst-around-in-presence-of-ip-options.patch]
sid: released (4.9.10-1) [bugfix/all/ipv4-keep-skb-dst-around-in-presence-of-IP-options.patch]
3.16-jessie-security: released (3.16.39-1+deb8u1) [bugfix/all/ipv4-keep-skb-dst-around-in-presence-of-ip-options.patch]
3.2-wheezy-security: released (3.2.88-1)
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