CVE-2026-46164

HIGH EPSS 3.4%
Published May 28, 20261mo ago · Modified Jun 19, 20261w ago
7.0 CVSS 3.1
High
Find Similar
Published May 28, 2026 1mo ago
Last Modified Jun 19, 2026 1w ago

Description

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.

CVSS Details

Base Score
7.0
Exploitability
1.0
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
3.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-415

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥6.1.162  –  <6.2
linuxlinux_kernel*≥6.6.122  –  <6.6.141
linuxlinux_kernel*≥6.12.67  –  <6.12.90
linuxlinux_kernel*≥6.16  –  <6.18.32
linuxlinux_kernel*≥6.19  –  <7.0.7

References 6

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

Remediation

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