CVE-2026-80554

Katalog CVE

CVSS 9.3 · Critical EPSS 0,20%

Skor CVSS 3.1 9.3 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Limit the number of channel program segments The processing of channel programs, and the CCWs within them, is done recursively. As such, there is an arbitrary (but not architectural) limit to the number of CCWs that can exist in a single channel program. The vfio-ccw logic breaks these channel programs into segments whenever it encounters a Transfer-In-Channel (TIC) CCW, and the combined number of segments count towards the global limit. Impose an equivalent limit to the number of segments until such logic can be made non-recursive.

Rincian

Terbit di NVD

26 Agustus 2026

Terakhir diubah

27 Agustus 2026

Status NVD

Received

CVSS 3.1

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

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 8,5% 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/06f4d6e5a8af6c2072e8cd39dbc512c683ca7fb2
• https://git.kernel.org/stable/c/15fb4559a7fdf0b8725e433a71cfd03a1313a48b
• https://git.kernel.org/stable/c/4ee94790490ae8dcc97df8597f07836c8a81bbcf
• https://git.kernel.org/stable/c/5405c90d6a47b3014e74ee0618a162449abbbc93
• https://git.kernel.org/stable/c/a1625f66eaa1200068a0e2c05bc90e65182fc4e3