CVE-2025-21980

Katalog CVE

CVSS 5.5 · Medium EPSS 0,19%

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: sched: address a potential NULL pointer dereference in the GRED scheduler. If kzalloc in gred_init returns a NULL pointer, the code follows the error handling path, invoking gred_destroy. This, in turn, calls gred_offload, where memset could receive a NULL pointer as input, potentially leading to a kernel crash. When table->opt is NULL in gred_init(), gred_change_table_def() is not called yet, so it is not necessary to call ->ndo_setup_tc() in gred_offload().

Rincian

Terbit di NVD

1 April 2025

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)

0,19% peluang dieksploitasi; lebih tinggi dari 8,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0f0a152957d64ce45b4c27c687e7d087e8f45079 patch
• https://git.kernel.org/stable/c/115ef44a98220fddfab37a39a19370497cd718b9 patch
• https://git.kernel.org/stable/c/5f996b4f80c2cef1f9c77275055e7fcba44c9199 patch
• https://git.kernel.org/stable/c/68896dd50180b38ea552e49a6a00b685321e5769 patch
• https://git.kernel.org/stable/c/d02c9acd68950a444acda18d514e2b41f846cb7f patch
• https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html