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authorJ. Bruce Fields <bfields@redhat.com>2011-06-29 16:49:04 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-08 10:23:13 -0700
commit8a8b5c1b6f911444c0623b991cde497df64cb84c (patch)
treed761d03ce4d28deecd37ec37ee1592f8b72c86f2 /drivers/usb
parent98aea907860bce247af40351a297d56ef44d7f26 (diff)
downloadlinux-linaro-stable-8a8b5c1b6f911444c0623b991cde497df64cb84c.tar.gz
svcrpc: fix list-corrupting race on nfsd shutdown
commit ebc63e531cc6a457595dd110b07ac530eae788c3 upstream. After commit 3262c816a3d7fb1eaabce633caa317887ed549ae "[PATCH] knfsd: split svc_serv into pools", svc_delete_xprt (then svc_delete_socket) no longer removed its xpt_ready (then sk_ready) field from whatever list it was on, noting that there was no point since the whole list was about to be destroyed anyway. That was mostly true, but forgot that a few svc_xprt_enqueue()'s might still be hanging around playing with the about-to-be-destroyed list, and could get themselves into trouble writing to freed memory if we left this xprt on the list after freeing it. (This is actually functionally identical to a patch made first by Ben Greear, but with more comments.) Cc: gnb@fmeh.org Reported-by: Ben Greear <greearb@candelatech.com> Tested-by: Ben Greear <greearb@candelatech.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
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