CVE-2026-97990
CVE CVE-2026-97990EUVD EUVD-2026-86644Published 2026-09-25T10:23:23.000ZLast changed 2026-09-25T14:41:47.000ZCVSS 7.5
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 5.19; cfe226892913a448e83e7a19db93862baa3cb99c <c001abcde865b74231da8f1412c3217dbf66781e; patch: 6.12.111; cfe226892913a448e83e7a19db93862baa3cb99c <0d195797a80b77f2ec56718cd26d3ee65d0093e8; patch: 0; cfe226892913a448e83e7a19db93862baa3cb99c <2bbf1c1f69991e28787e02b0a2f826289d5fc730; patch: 6.18.53; cfe226892913a448e83e7a19db93862baa3cb99c <3af20238a09ca180d66623e3bed16b64e9975f39; patch: 7.3-rc3; patch: 7.2.7
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.