CVE-2026-43061

Katalog CVE

CVSS 5.5 · Medium EPSS 0,13%

Kerentanan Improper Locking pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fix TX deadlock when using DMA `dmaengine_terminate_async` does not guarantee that the `__dma_tx_complete` callback will run. The callback is currently the only place where `dma->tx_running` gets cleared. If the transaction is canceled and the callback never runs, then `dma->tx_running` will never get cleared and we will never schedule new TX DMA transactions again. This change makes it so we clear `dma->tx_running` after we terminate the DMA transaction. This is "safe" because `serial8250_tx_dma_flush` is holding the UART port lock. The first thing the callback does is also grab the UART port lock, so access to `dma->tx_running` is serialized.

Rincian

Terbit di NVD

5 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

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

Jenis kelemahan (CWE)

CWE-667: Improper Locking

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/2a72403b985aea6b4aac3171830492f9a387f9e1 patch
• https://git.kernel.org/stable/c/5f6b17562f03fc65c7d3474ef8f1959b19d1ca41 patch
• https://git.kernel.org/stable/c/79a19bd936bb35f56ef0ccab1b3b59ebce8c762d patch
• https://git.kernel.org/stable/c/8190f9ab6ad90cb97652adbebd238b874a4ef70d patch
• https://git.kernel.org/stable/c/a424a34b8faddf97b5af41689087e7a230f79ba7 patch
• https://git.kernel.org/stable/c/b5ad887339503103d0fbe9827b16ad287597c275 patch
• https://git.kernel.org/stable/c/d2719a0a9c3439abf67843a5504b7afccd9ded93 patch
• https://git.kernel.org/stable/c/f76d91271bcacbd759a2e4ee3ea61faa6a727ccf patch