CVE-2026-46164

Katalog CVE

CVSS 7.0 · High EPSS 0,17%

Kerentanan Double Free pada linux kernel. Skor CVSS 3.1 7.0 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix double free in create_space_info_sub_group() error path When kobject_init_and_add() fails, the call chain is: create_space_info_sub_group() -> btrfs_sysfs_add_space_info_type() -> kobject_init_and_add() -> failure -> kobject_put(&sub_group->kobj) -> space_info_release() -> kfree(sub_group) Then control returns to create_space_info_sub_group(), where: btrfs_sysfs_add_space_info_type() returns error -> kfree(sub_group) Thus, sub_group is freed twice. Keep parent->sub_group[index] = NULL for the failure path, but after btrfs_sysfs_add_space_info_type() has called kobject_put(), let the kobject release callback handle the cleanup.

Rincian

Terbit di NVD

28 Mei 2026

Terakhir diubah

19 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-415: Double Free

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/14b22be1dd844383eb03af9b1ee3b6b25d32aeaf patch
• https://git.kernel.org/stable/c/259af6857a1b4f1e9ef8b780353f9d11c26a22bd patch
• https://git.kernel.org/stable/c/a7449edf96143f192606ec8647e3167e1ecbd728 patch
• https://git.kernel.org/stable/c/d2a675f2e238ec96c8e91e2718c1f910c9c8fb21 patch
• https://git.kernel.org/stable/c/dfd05a16b5c9d1d98b47905f37f2fccda52173d1 patch
• https://git.kernel.org/stable/c/c2d59527cba6d59f0d77a75c1101ab4e69758bea