CVE-2026-97990
- Source
- https://cve.org/CVERecord?id=CVE-2026-97990
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97990.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-97990
- Downstream
- Published
- 2026-09-25T10:23:23Z
- Modified
- 2026-09-26T03:48:36Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:H CVSS Calculator
- Summary
- vdpa_sim_net: check TX pull result before RX copy
- 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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97990.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0d195797a80b77f2ec56718cd26d3ee65d0093e8
- https://git.kernel.org/stable/c/2bbf1c1f69991e28787e02b0a2f826289d5fc730
- https://git.kernel.org/stable/c/3af20238a09ca180d66623e3bed16b64e9975f39
- https://git.kernel.org/stable/c/c001abcde865b74231da8f1412c3217dbf66781e
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97990.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-97990
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcfe226892913a448e83e7a19db93862baa3cb99cFixedc001abcde865b74231da8f1412c3217dbf66781eFixed3af20238a09ca180d66623e3bed16b64e9975f39Fixed2bbf1c1f69991e28787e02b0a2f826289d5fc730Fixed0d195797a80b77f2ec56718cd26d3ee65d0093e8