CVE-2021-46905

Katalog CVE

CVSS 5.5 · Medium EPSS 0,26%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: net: hso: fix NULL-deref on disconnect regression Commit 8a12f8836145 ("net: hso: fix null-ptr-deref during tty device unregistration") fixed the racy minor allocation reported by syzbot, but introduced an unconditional NULL-pointer dereference on every disconnect instead. Specifically, the serial device table must no longer be accessed after the minor has been released by hso_serial_tty_unregister().

Rincian

Terbit di NVD

26 Februari 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

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,26% peluang dieksploitasi; lebih tinggi dari 16,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0c71d4c89559f72cec2592d078681a843bce570e patch
• https://git.kernel.org/stable/c/0f000005da31f6947f843ce6b3e3a960540c6e00 patch
• https://git.kernel.org/stable/c/24b699bea7553fc0b98dad9d864befb6005ac7f1 patch
• https://git.kernel.org/stable/c/2ad5692db72874f02b9ad551d26345437ea4f7f3 patch
• https://git.kernel.org/stable/c/41c44e1f3112d7265dae522c026399b2a42d19ef patch
• https://git.kernel.org/stable/c/5871761c5f0f20d6e98bf3b6bd7486d857589554 patch
• https://git.kernel.org/stable/c/5c17cfe155d21954b4c7e2a78fa771cebcd86725 patch
• https://git.kernel.org/stable/c/90642ee9eb581a13569b1c0bd57e85d962215273 patch
• https://git.kernel.org/stable/c/d7fad2ce15bdbbd0fec3ebe999fd7cab2267f53e patch