CVE-2023-53144

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-05-02 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

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.

Weakness Classification (1)

CWE-476

Affected Software (6)

Vendor	Product	Version
Linux	Linux	622ceaddb7649ca328832f50ba1400af778d75fa < fa4056781ac067b5946c6811459e1a36842047fd
Linux	Linux	622ceaddb7649ca328832f50ba1400af778d75fa < 28aea8ae6cf212a5bf3ed962b27921e2029ad754
Linux	Linux	622ceaddb7649ca328832f50ba1400af778d75fa < 8f121dfb15f7b4ab345992ce96003eb63fd608f4
Linux	Linux	5.16
linux	linux_kernel	5.16 – 6.1.20
linux	linux_kernel	6.3