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authorPavel Emelyanov <xemul@openvz.org>2007-11-15 02:57:06 -0800
committerDavid S. Miller <davem@davemloft.net>2007-11-15 02:57:06 -0800
commitdab6ba36888a12f3e3edff71eeef968fc159178a (patch)
treeb838883cd5cd8f55f2bcb31f16430dd5a10dcbca /Documentation/unicode.txt
parentbd7b3f34198071d8bec05180530c362f1800ba46 (diff)
[INET]: Fix potential kfree on vmalloc-ed area of request_sock_queue
The request_sock_queue's listen_opt is either vmalloc-ed or kmalloc-ed depending on the number of table entries. Thus it is expected to be handled properly on free, which is done in the reqsk_queue_destroy(). However the error path in inet_csk_listen_start() calls the lite version of reqsk_queue_destroy, called __reqsk_queue_destroy, which calls the kfree unconditionally. Fix this and move the __reqsk_queue_destroy into a .c file as it looks too big to be inline. As David also noticed, this is an error recovery path only, so no locking is required and the lopt is known to be not NULL. reqsk_queue_yank_listen_sk is also now only used in net/core/request_sock.c so we should move it there too. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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