tree b0db0fff93d8baaf835296ba152084e3c72d6b17
parent b19ab4b38b06aae12442b2de95ccf58b5dc53584
author Tung Nguyen <tung.q.nguyen@dektech.com.au> 1646705519 +0000
committer Jakub Kicinski <kuba@kernel.org> 1646806722 -0800

tipc: fix incorrect order of state message data sanity check

When receiving a state message, function tipc_link_validate_msg()
is called to validate its header portion. Then, its data portion
is validated before it can be accessed correctly. However, current
data sanity  check is done after the message header is accessed to
update some link variables.

This commit fixes this issue by moving the data sanity check to
the beginning of state message handling and right after the header
sanity check.

Fixes: 9aa422ad3266 ("tipc: improve size validations for received domain records")
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Tung Nguyen <tung.q.nguyen@dektech.com.au>
Link: https://lore.kernel.org/r/20220308021200.9245-1-tung.q.nguyen@dektech.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>