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CVE PROGRAM SOURCE RECORDUnscored

CVE-2023-53144

erofs: fix wrong kunmap when using LZMA on HIGHMEM platforms

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 622ceaddb7649ca328832f50ba1400af778d75fa to < fa4056781ac067b5946c6811459e1a36842047fdaffected
  • 622ceaddb7649ca328832f50ba1400af778d75fa to < 28aea8ae6cf212a5bf3ed962b27921e2029ad754affected
  • 622ceaddb7649ca328832f50ba1400af778d75fa to < 8f121dfb15f7b4ab345992ce96003eb63fd608f4affected

Linux Linux

Default version status: affected

  • 5.16affected
  • 0 to < 5.16unaffected
  • 6.1.20 to ≤ 6.1.*unaffected
  • 6.2.7 to ≤ 6.2.*unaffected
  • 6.3 to ≤ *unaffected

References