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| author | Felix Fietkau <nbd@openwrt.org> | 2012-10-26 00:31:11 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-10-29 19:18:21 +0100 |
| commit | 8c6e30936a7893a85f6222084f0f26aceb81137a (patch) | |
| tree | 4130286b0162d3eb16d09286f6b254564faf3ec4 /net/wireless/util.c | |
| parent | Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jber... (diff) | |
| download | linux-8c6e30936a7893a85f6222084f0f26aceb81137a.tar.xz linux-8c6e30936a7893a85f6222084f0f26aceb81137a.zip | |
ath9k: fix stale pointers potentially causing access to free'd skbs
bf->bf_next is only while buffers are chained as part of an A-MPDU
in the tx queue. When a tid queue is flushed (e.g. on tearing down
an aggregation session), frames can be enqueued again as normal
transmission, without bf_next being cleared. This can lead to the
old pointer being dereferenced again later.
This patch might fix crashes and "Failed to stop TX DMA!" messages.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless/util.c')
0 files changed, 0 insertions, 0 deletions