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authorfernando@oss.ntt.co <fernando@oss.ntt.co>2008-10-23 04:27:19 +0000
committerDavid S. Miller <davem@davemloft.net>2008-10-31 00:06:03 -0700
commita432226614c5616e3cfd211e0acffa0acfb4770c (patch)
tree2189d97e001e8ad9173ec40c27f6a28ab109db2f /net/netlabel/netlabel_addrlist.c
parent3a8af722495469e9c550386b910c5b93c91cf107 (diff)
downloadlinux-linaro-a432226614c5616e3cfd211e0acffa0acfb4770c.tar.gz
xfrm: do not leak ESRCH to user space
I noticed that, under certain conditions, ESRCH can be leaked from the xfrm layer to user space through sys_connect. In particular, this seems to happen reliably when the kernel fails to resolve a template either because the AF_KEY receive buffer being used by racoon is full or because the SA entry we are trying to use is in XFRM_STATE_EXPIRED state. However, since this could be a transient issue it could be argued that EAGAIN would be more appropriate. Besides this error code is not even documented in the man page for sys_connect (as of man-pages 3.07). Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlabel/netlabel_addrlist.c')
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