CVE-2023-53144

MEDIUM EPSS 4.3%
Published May 2, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 2, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: erofs: fix wrong kunmap when using LZMA on HIGHMEM platforms As the call trace shown, the root cause is kunmap incorrect pages: BUG: kernel NULL pointer dereference, address: 00000000 CPU: 1 PID: 40 Comm: kworker/u5:0 Not tainted 6.2.0-rc5 #4 Workqueue: erofs_worker z_erofs_decompressqueue_work EIP: z_erofs_lzma_decompress+0x34b/0x8ac z_erofs_decompress+0x12/0x14 z_erofs_decompress_queue+0x7e7/0xb1c z_erofs_decompressqueue_work+0x32/0x60 process_one_work+0x24b/0x4d8 ? process_one_work+0x1a4/0x4d8 worker_thread+0x14c/0x3fc kthread+0xe6/0x10c ? rescuer_thread+0x358/0x358 ? kthread_complete_and_exit+0x18/0x18 ret_from_fork+0x1c/0x28 ---[ end trace 0000000000000000 ]--- The bug is trivial and should be fixed now. It has no impact on !HIGHMEM platforms.

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
4.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥5.16  –  <6.1.20
linuxlinux_kernel*≥6.2  –  <6.2.7
linuxlinux_kernel6.3any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/28aea8ae6cf212a5bf3ed962b27921e2029ad754
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8f121dfb15f7b4ab345992ce96003eb63fd608f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fa4056781ac067b5946c6811459e1a36842047fd
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/28aea8ae6cf212a5bf3ed962b27921e2029ad754
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8f121dfb15f7b4ab345992ce96003eb63fd608f4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fa4056781ac067b5946c6811459e1a36842047fd
    Patch