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author | Jason Wang | 2018-05-30 06:11:30 +0200 |
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committer | Jason Wang | 2018-10-19 05:15:04 +0200 |
commit | b1d80d12c5f7ff081bb80ab4f4241d4248691192 (patch) | |
tree | ff8cc6c725fce80c3d52a7534260c2b59ecc7057 /net | |
parent | rtl8139: fix possible out of bound access (diff) | |
download | qemu-b1d80d12c5f7ff081bb80ab4f4241d4248691192.tar.gz qemu-b1d80d12c5f7ff081bb80ab4f4241d4248691192.tar.xz qemu-b1d80d12c5f7ff081bb80ab4f4241d4248691192.zip |
pcnet: fix possible buffer overflow
In pcnet_receive(), we try to assign size_ to size which converts from
size_t to integer. This will cause troubles when size_ is greater
INT_MAX, this will lead a negative value in size and it can then pass
the check of size < MIN_BUF_SIZE which may lead out of bound access
for both buf and buf1.
Fixing by converting the type of size to size_t.
CC: qemu-stable@nongnu.org
Reported-by: Daniel Shapira <daniel@twistlock.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions