Riskcovery

CVE-2023-53144

erofs: fix wrong kunmap when using LZMA on HIGHMEM platforms

State
Published
Severity
Not scored
Published
May 2, 2025
Updated
May 11, 2026
Reserved
May 2, 2025

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 622ceaddb7649ca328832f50ba1400af778d75fa to before fa4056781ac067b5946c6811459e1a36842047fdAffected
  • 622ceaddb7649ca328832f50ba1400af778d75fa to before 28aea8ae6cf212a5bf3ed962b27921e2029ad754Affected
  • 622ceaddb7649ca328832f50ba1400af778d75fa to before 8f121dfb15f7b4ab345992ce96003eb63fd608f4Affected
LinuxLinux
  • 5.16Affected
  • before 5.16Not affected
  • 6.1.20 through 6.1.*Not affected
  • 6.2.7 through 6.2.*Not affected
  • 6.3 and laterNot affected

References

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