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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2023-54234

scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization Commit c1af985d27da ("scsi: mpi3mr: Add Event acknowledgment logic") introduced an array mrioc->evtack_cmds but initialization of the array elements was missed. They are just zero cleared. The function mpi3mr_complete_evt_ack() refers host_tag field of the elements. Due to the zero value of the host_tag field, the function calls clear_bit() for mrico->evtack_cmds_bitmap with wrong bit index. This results in memory access to invalid address and "BUG: KASAN: use-after-free". This BUG was observed at eHBA-9600 firmware update to version 8.3.1.0. To fix it, add the missing initialization of mrioc->evtack_cmds.

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

  • c1af985d27da2d530c22604644e9025810f57d7c to < 4e0dfdb48a824deac3dfbc67fb856ef2aee13529affected
  • c1af985d27da2d530c22604644e9025810f57d7c to < 67989091e11a974003ddf2ec39bc613df8eadd83affected
  • c1af985d27da2d530c22604644e9025810f57d7c to < e39ea831ebad4ab15c4748cb62a397a8abcca36eaffected

Linux Linux

Default version status: affected

  • 5.17affected
  • 0 to < 5.17unaffected
  • 6.1.16 to ≤ 6.1.*unaffected
  • 6.2.3 to ≤ 6.2.*unaffected
  • 6.3 to ≤ *unaffected

References