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| author | Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> | 2006-08-17 16:44:46 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-08-17 16:44:46 -0700 |
| commit | 6e8fcbf64024f9056ba122abbb66554aa76bae5d (patch) | |
| tree | 61fec2bd4815d30110dc2ba7da3b7578fb08a0d8 /include/asm-um | |
| parent | acd6e00b8e4db542cb6bc9ddfbb4e18bbe29ce4d (diff) | |
| download | talos-obmc-linux-6e8fcbf64024f9056ba122abbb66554aa76bae5d.tar.gz talos-obmc-linux-6e8fcbf64024f9056ba122abbb66554aa76bae5d.zip | |
[IPV4]: severe locking bug in fib_semantics.c
Found in 2.4 by Yixin Pan <yxpan@hotmail.com>.
> When I read fib_semantics.c of Linux-2.4.32, write_lock(&fib_info_lock) =
> is used in fib_release_info() instead of write_lock_bh(&fib_info_lock). =
> Is the following case possible: a BH interrupts fib_release_info() while =
> holding the write lock, and calls ip_check_fib_default() which calls =
> read_lock(&fib_info_lock), and spin forever.
Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-um')
0 files changed, 0 insertions, 0 deletions
