CVE-2024-27437

Katalog CVE

CVSS 5.5 · Medium EPSS 0,24%

Kerentanan pada linux kernel, debian linux. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Disable auto-enable of exclusive INTx IRQ Currently for devices requiring masking at the irqchip for INTx, ie. devices without DisINTx support, the IRQ is enabled in request_irq() and subsequently disabled as necessary to align with the masked status flag. This presents a window where the interrupt could fire between these events, resulting in the IRQ incrementing the disable depth twice. This would be unrecoverable for a user since the masked flag prevents nested enables through vfio. Instead, invert the logic using IRQF_NO_AUTOEN such that exclusive INTx is never auto-enabled, then unmask as required.

Rincian

Terbit di NVD

5 April 2024

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

EPSS (30 hari)

0,24% peluang dieksploitasi; lebih tinggi dari 13,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/139dfcc4d723ab13469881200c7d80f49d776060 patch
• https://git.kernel.org/stable/c/26389925d6c2126fb777821a0a983adca7ee6351 patch
• https://git.kernel.org/stable/c/2a4a666c45107206605b7b5bc20545f8aabc4fa2 patch
• https://git.kernel.org/stable/c/3b3491ad0f80d913e7d255941d4470f4a4d9bfda patch
• https://git.kernel.org/stable/c/561d5e1998d58b54ce2bbbb3e843b669aa0b3db5 patch
• https://git.kernel.org/stable/c/b7a2f0955ffceffadfe098b40b50307431f45438 patch
• https://git.kernel.org/stable/c/bf0bc84a20e6109ab07d5dc072067bd01eb931ec patch
• https://git.kernel.org/stable/c/fe9a7082684eb059b925c535682e68c34d487d43 patch
• https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html mailing list
• https://cert-portal.siemens.com/productcert/html/ssa-265688.html