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[PATCH v2 3/8] libvhost-user.c: add assertion to vu_message_read_default
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From: |
Vladimir Sementsov-Ogievskiy |
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Subject: |
[PATCH v2 3/8] libvhost-user.c: add assertion to vu_message_read_default |
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Date: |
Tue, 26 Sep 2023 23:15:27 +0300 |
Explain Coverity that we are not going to overflow vmsg->fds.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
---
subprojects/libvhost-user/libvhost-user.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/subprojects/libvhost-user/libvhost-user.c
b/subprojects/libvhost-user/libvhost-user.c
index 0469a50101..49b57c7ef4 100644
--- a/subprojects/libvhost-user/libvhost-user.c
+++ b/subprojects/libvhost-user/libvhost-user.c
@@ -322,6 +322,7 @@ vu_message_read_default(VuDev *dev, int conn_fd,
VhostUserMsg *vmsg)
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
fd_size = cmsg->cmsg_len - CMSG_LEN(0);
vmsg->fd_num = fd_size / sizeof(int);
+ assert(fd_size < VHOST_MEMORY_BASELINE_NREGIONS);
memcpy(vmsg->fds, CMSG_DATA(cmsg), fd_size);
break;
}
--
2.34.1
- Re: [PATCH v2 4/8] mc146818rtc: rtc_set_time(): initialize tm to zeroes, (continued)
- [PATCH v2 6/8] block/nvme: nvme_process_completion() fix bound for cid, Vladimir Sementsov-Ogievskiy, 2023/09/26
- [PATCH v2 1/8] hw/i386/intel_iommu: vtd_slpte_nonzero_rsvd(): assert no overflow, Vladimir Sementsov-Ogievskiy, 2023/09/26
- [PATCH v2 5/8] pcie_sriov: unregister_vfs(): fix error path, Vladimir Sementsov-Ogievskiy, 2023/09/26
- [PATCH v2 8/8] io/channel-socket: qio_channel_socket_flush(): improve msg validation, Vladimir Sementsov-Ogievskiy, 2023/09/26
- [PATCH v2 7/8] hw/core/loader: gunzip(): initialize z_stream, Vladimir Sementsov-Ogievskiy, 2023/09/26
- [PATCH v2 3/8] libvhost-user.c: add assertion to vu_message_read_default,
Vladimir Sementsov-Ogievskiy <=
- Re: [PATCH v2 0/8] coverity fixes, Maksim Davydov, 2023/09/27