CVE-2022-50367

HIGH EPSS 10.7%
Published Sep 17, 20259mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Sep 17, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: fs: fix UAF/GPF bug in nilfs_mdt_destroy In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i_private uninitialized. Then nilfs_is_metadata_file_inode() returns true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(), which frees the uninitialized inode->i_private and leads to crashes(e.g., UAF/GPF). Fix this by moving security_inode_alloc just prior to this_cpu_inc(nr_inodes)

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
10.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <4.9.331
linuxlinux_kernel*≥4.10  –  <4.14.296
linuxlinux_kernel*≥4.15  –  <4.19.262
linuxlinux_kernel*≥4.20  –  <5.4.218
linuxlinux_kernel*≥5.5  –  <5.10.148
linuxlinux_kernel*≥5.11  –  <5.15.73
linuxlinux_kernel*≥5.16  –  <5.19.15
linuxlinux_kernel*≥6.0  –  <6.0.1

References 9

  • git.kernel.org https://git.kernel.org/stable/c/1e555c3ed1fce4b278aaebe18a64a934cece57d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2a96b532098284ecf8e4849b8b9e5fc7a28bdee9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2e488f13755ffbb60f307e991b27024716a33b29
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64b79e632869ad3ef6c098a4731d559381da1115
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70e4f70d54e0225f91814e8610477d65f33cefe4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/81de80330fa6907aec32eb54c5619059e6e36452
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c0aa76b0f17f59dd9c9d3463550a2986a1d592e4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d1ff475d7c83289d0a7faef346ea3bbf90818bad
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1e555c3ed1fce4b278aaebe18a64a934cece57d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2a96b532098284ecf8e4849b8b9e5fc7a28bdee9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2e488f13755ffbb60f307e991b27024716a33b29
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64b79e632869ad3ef6c098a4731d559381da1115
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70e4f70d54e0225f91814e8610477d65f33cefe4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/81de80330fa6907aec32eb54c5619059e6e36452
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c0aa76b0f17f59dd9c9d3463550a2986a1d592e4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d1ff475d7c83289d0a7faef346ea3bbf90818bad
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ec2aab115eb38ac4992ea2fcc2a02fbe7af5cf48
    Patch