CVE-2026-97990

Katalog CVE

CVSS 7.5 · High EPSS 0,12%

Skor CVSS 3.1 7.5 (High) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

25 September 2026

Terakhir diubah

3 Oktober 2026

Status NVD

Received

CVSS 3.1

7.5 (High), sumber CNA
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:H · uraikan di kalkulator

EPSS (30 hari)

0,12% peluang dieksploitasi; lebih tinggi dari 1,5% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0d195797a80b77f2ec56718cd26d3ee65d0093e8
• https://git.kernel.org/stable/c/1b803d382cde6d85755b363f22010208a04ba40a
• https://git.kernel.org/stable/c/2bbf1c1f69991e28787e02b0a2f826289d5fc730
• https://git.kernel.org/stable/c/3af20238a09ca180d66623e3bed16b64e9975f39
• https://git.kernel.org/stable/c/c001abcde865b74231da8f1412c3217dbf66781e