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| author |   Esben Haabendal <esben@geanix.com> | 2021-06-18 12:52:33 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-06-18 12:11:51 -0700 |
| commit | c364df2489b8ef2f5e3159b1dff1ff1fdb16040d (patch) | |
| tree | 0be426b319a980f12f459e269c7893c3b7c6b558 /net/unix/af_unix.c | |
| parent | net: ll_temac: Add memory-barriers for TX BD access (diff) | |
| download | wireguard-linux-c364df2489b8ef2f5e3159b1dff1ff1fdb16040d.tar.xz wireguard-linux-c364df2489b8ef2f5e3159b1dff1ff1fdb16040d.zip | |
net: ll_temac: Fix TX BD buffer overwrite
Just as the initial check, we need to ensure num_frag+1 buffers available,
as that is the number of buffers we are going to use.
This fixes a buffer overflow, which might be seen during heavy network
load. Complete lockup of TEMAC was reproducible within about 10 minutes of
a particular load.
Fixes: 84823ff80f74 ("net: ll_temac: Fix race condition causing TX hang")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions