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home:dirkmueller:acdc:sp5-rebuild
qemu.22426
e1000-switch-to-use-qemu_receive_packet-.patch
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File e1000-switch-to-use-qemu_receive_packet-.patch of Package qemu.22426
From: Jason Wang <jasowang@redhat.com> Date: Wed, 24 Feb 2021 12:13:22 +0800 Subject: e1000: switch to use qemu_receive_packet() for loopback MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Git-commit: 1caff0340f49c93d535c6558a5138d20d475315c This patch switches to use qemu_receive_packet() which can detect reentrancy and return early. This is intended to address CVE-2021-3416. Cc: Prasad J Pandit <ppandit@redhat.com> Cc: qemu-stable@nongnu.org Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Bruce Rogers <brogers@suse.com> --- hw/net/e1000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/net/e1000.c b/hw/net/e1000.c index 02a446b89bae0dec0acdefa54760..c3564c7ce814004f72ab42854542 100644 --- a/hw/net/e1000.c +++ b/hw/net/e1000.c @@ -546,7 +546,7 @@ e1000_send_packet(E1000State *s, const uint8_t *buf, int size) NetClientState *nc = qemu_get_queue(s->nic); if (s->phy_reg[PHY_CTRL] & MII_CR_LOOPBACK) { - nc->info->receive(nc, buf, size); + qemu_receive_packet(nc, buf, size); } else { qemu_send_packet(nc, buf, size); }
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