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| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2023-06-01 12:18:59 +0900 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2023-11-29 15:35:38 +0300 |
| commit | 88e79a2dfda319f9ebec2cc8a5c3c9733716d13f (patch) | |
| tree | 594814caa172251bbd884324fcc2b6e87ef6a49a /module-common.c | |
| parent | cc5124d9797b0801525bc6658af9ed22426d1eff (diff) | |
net: Update MemReentrancyGuard for NIC
Recently MemReentrancyGuard was added to DeviceState to record that the
device is engaging in I/O. The network device backend needs to update it
when delivering a packet to a device.
This implementation follows what bottom half does, but it does not add
a tracepoint for the case that the network device backend started
delivering a packet to a device which is already engaging in I/O. This
is because such reentrancy frequently happens for
qemu_flush_queued_packets() and is insignificant.
Fixes: CVE-2023-3019
Reported-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Acked-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit 9050f976e447444ea6ee2ba12c9f77e4b0dc54bc)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'module-common.c')
0 files changed, 0 insertions, 0 deletions