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| author | Michael Brown | 2020-11-29 12:21:20 +0100 |
|---|---|---|
| committer | Michael Brown | 2020-11-29 12:25:40 +0100 |
| commit | 9ff61ab28df1a0d20e1819d387094d220c1580ad (patch) | |
| tree | 4d290e88a261611ecc9f5f63b0b72042fba5cc2b /src/usr | |
| parent | [dma] Move I/O buffer DMA operations to iobuf.h (diff) | |
| download | ipxe-9ff61ab28df1a0d20e1819d387094d220c1580ad.tar.gz ipxe-9ff61ab28df1a0d20e1819d387094d220c1580ad.tar.xz ipxe-9ff61ab28df1a0d20e1819d387094d220c1580ad.zip | |
[netdevice] Do not attempt to unmap a null I/O buffer
netdev_tx_err() may be called with a null I/O buffer (e.g. to record a
transmit error with no associated buffer). Avoid a potential null
pointer dereference in the DMA unmapping code path.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/usr')
0 files changed, 0 insertions, 0 deletions