CVE-2023-53391

MEDIUM EPSS 3.3%
Published Sep 18, 20259mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 18, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs As the ramfs-based tmpfs uses ramfs_init_fs_context() for the init_fs_context method, which allocates fc->s_fs_info, use ramfs_kill_sb() to free it and avoid a memory leak.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥2.6.30  –  <5.10.188
linuxlinux_kernel*≥5.11  –  <5.15.121
linuxlinux_kernel*≥5.16  –  <6.1.39
linuxlinux_kernel*≥6.2  –  <6.4.4

References 5

  • git.kernel.org https://git.kernel.org/stable/c/1f34bf8b442c6d720e7fa6f15e8702427e48aea9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/36ce9d76b0a93bae799e27e4f5ac35478c676592
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/487f229efea80c00dd7397547ec4f25fb8999d99
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5fada375113767b3b57f1b04f7a4fe64ffaa626f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ebe07db840992a3886694ac3d303b06f4b70ce00
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1f34bf8b442c6d720e7fa6f15e8702427e48aea9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/36ce9d76b0a93bae799e27e4f5ac35478c676592
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/487f229efea80c00dd7397547ec4f25fb8999d99
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5fada375113767b3b57f1b04f7a4fe64ffaa626f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ebe07db840992a3886694ac3d303b06f4b70ce00
    Patch