AZL-104775
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-104775.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-104775
- Upstream
- Published
- 2026-09-25T11:17:27Z
- Modified
- 2026-09-29T05:37:47Z
- Summary
- CVE-2026-97990 affecting package kernel 6.6.157.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
vdpa_sim_net: check TX pull result before RX copy
vringh_iov_pull_iotlb() returns a signed byte count. A failed TX pull is currently added to the unsigned byte counter and then passed as a size_t length to receive_filter() and vringh_iov_push_iotlb(). A negative error can therefore become a large length in the RX path.
Handle non-positive pull results before every length use. Count the TX error and complete the consumed TX descriptor with zero bytes.
I found this bug myself, though the patch was written with AI assistance.
- References