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[Qemu-devel] [PATCH 48/97] net: ignore packet size greater than INT_MAX
From: |
Michael Roth |
Subject: |
[Qemu-devel] [PATCH 48/97] net: ignore packet size greater than INT_MAX |
Date: |
Mon, 1 Apr 2019 15:59:22 -0500 |
From: Jason Wang <address@hidden>
There should not be a reason for passing a packet size greater than
INT_MAX. It's usually a hint of bug somewhere, so ignore packet size
greater than INT_MAX in qemu_deliver_packet_iov()
CC: address@hidden
Reported-by: Daniel Shapira <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Jason Wang <address@hidden>
(cherry picked from commit 1592a9947036d60dde5404204a5d45975133caf5)
Signed-off-by: Michael Roth <address@hidden>
---
net/net.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/net/net.c b/net/net.c
index 2a3133990c..46db72811b 100644
--- a/net/net.c
+++ b/net/net.c
@@ -712,10 +712,15 @@ ssize_t qemu_deliver_packet_iov(NetClientState *sender,
void *opaque)
{
NetClientState *nc = opaque;
+ size_t size = iov_size(iov, iovcnt);
int ret;
+ if (size > INT_MAX) {
+ return size;
+ }
+
if (nc->link_down) {
- return iov_size(iov, iovcnt);
+ return size;
}
if (nc->receive_disabled) {
--
2.17.1
- [Qemu-devel] [PATCH 77/97] pc:piix4: Update smbus I/O space after a migration, (continued)
- [Qemu-devel] [PATCH 77/97] pc:piix4: Update smbus I/O space after a migration, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 62/97] fdc: fix segfault in fdctrl_stop_transfer() when DMA is disabled, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 15/97] target/arm: Use fp_status_fp16 for do_fmpa_zpzzz_h, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 90/97] slirp: check sscanf result when emulating ident, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 83/97] tpm: Zero-init structure to avoid uninitialized variables in valgrind log, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 04/97] target/arm: Fix typo in helper_sve_movz_d, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 88/97] acpi: Make TPM 2.0 with TIS available as MSFT0101, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 05/97] target/arm: Fix typo in helper_sve_ld1hss_r, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 34/97] tests: update acpi expected files, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 60/97] make-release: add skiboot .version file, Michael Roth, 2019/04/01
- [Qemu-devel] [PATCH 48/97] net: ignore packet size greater than INT_MAX,
Michael Roth <=
- [Qemu-devel] [PATCH 94/97] nvme: fix out-of-bounds access to the CMB, Michael Roth, 2019/04/01
- Re: [Qemu-devel] [Qemu-stable] [PATCH 00/97] Patch Round-up for stable 3.0.1, freeze on 2019-04-08, Cole Robinson, 2019/04/02
- Re: [Qemu-devel] [PATCH 00/97] Patch Round-up for stable 3.0.1, freeze on 2019-04-08, Philippe Mathieu-Daudé, 2019/04/04