CVE-2021-46973

Katalog CVE

CVSS 7.8 · High EPSS 0,23%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Avoid potential use after free in MHI send It is possible that the MHI ul_callback will be invoked immediately following the queueing of the skb for transmission, leading to the callback decrementing the refcount of the associated sk and freeing the skb. As such the dereference of skb and the increment of the sk refcount must happen before the skb is queued, to avoid the skb to be used after free and potentially the sk to drop its last refcount..

Rincian

Terbit di NVD

27 Februari 2024

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,23% peluang dieksploitasi; lebih tinggi dari 12,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/03c649dee8b1eb5600212a249542a70f47a5ab40 patch
• https://git.kernel.org/stable/c/47a017f33943278570c072bc71681809b2567b3a patch
• https://git.kernel.org/stable/c/48ec949ac979b4b42d740f67b6177797af834f80 patch
• https://git.kernel.org/stable/c/ea474054c2cc6e1284604b21361f475c7cc8c0a0 patch