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| author | Rasesh Mody | 2011-09-16 17:06:48 +0200 |
|---|---|---|
| committer | David S. Miller | 2011-09-17 06:47:57 +0200 |
| commit | b9fa1fbf98178c8bbda23ff1d3ed0731bb3c0bd1 (patch) | |
| tree | 7562913799f3ec165d2e0befb43e7e5463dac7c2 /include/net | |
| parent | bna: Set Ring Param Fix (diff) | |
| download | kernel-qcow2-linux-b9fa1fbf98178c8bbda23ff1d3ed0731bb3c0bd1.tar.gz kernel-qcow2-linux-b9fa1fbf98178c8bbda23ff1d3ed0731bb3c0bd1.tar.xz kernel-qcow2-linux-b9fa1fbf98178c8bbda23ff1d3ed0731bb3c0bd1.zip | |
bna: Eliminate Small Race Condition Window in RX Path
Change details:
- In a continuous sequence of ifconfig up/down operations, there is a small
window of race between bnad_set_rx_mode() and bnad_cleanup_rx() while the
former tries to access rx_info->rx & the latter sets it to NULL. This race
could lead to bna_rx_mode_set() being called with a NULL (rx_info->rx)
pointer and a crash.
- Hold bnad->bna_lock while setting / unsetting rx_info->rx in bnad_setup_rx()
& bnad_cleanup_rx(), thereby eliminating the race described above.
Signed-off-by: Gurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
0 files changed, 0 insertions, 0 deletions