CVE-2023-54234 (GCVE-0-2023-54234)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:11 – Updated: 2025-12-30 12:11
VLAI?
Title
scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c1af985d27da2d530c22604644e9025810f57d7c , < 4e0dfdb48a824deac3dfbc67fb856ef2aee13529 (git)
Affected: c1af985d27da2d530c22604644e9025810f57d7c , < 67989091e11a974003ddf2ec39bc613df8eadd83 (git)
Affected: c1af985d27da2d530c22604644e9025810f57d7c , < e39ea831ebad4ab15c4748cb62a397a8abcca36e (git)
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    Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Fix missing mrioc-\u003eevtack_cmds initialization\n\nCommit c1af985d27da (\"scsi: mpi3mr: Add Event acknowledgment logic\")\nintroduced an array mrioc-\u003eevtack_cmds but initialization of the array\nelements was missed. They are just zero cleared. The function\nmpi3mr_complete_evt_ack() refers host_tag field of the elements. Due to the\nzero value of the host_tag field, the function calls clear_bit() for\nmrico-\u003eevtack_cmds_bitmap with wrong bit index. This results in memory\naccess to invalid address and \"BUG: KASAN: use-after-free\". This BUG was\nobserved at eHBA-9600 firmware update to version 8.3.1.0. To fix it, add\nthe missing initialization of mrioc-\u003eevtack_cmds."
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    "datePublished": "2025-12-30T12:11:25.021Z",
    "dateReserved": "2025-12-30T12:06:44.507Z",
    "dateUpdated": "2025-12-30T12:11:25.021Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2023-54234\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-30T13:16:11.847\",\"lastModified\":\"2025-12-31T20:42:43.210\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nscsi: mpi3mr: Fix missing mrioc-\u003eevtack_cmds initialization\\n\\nCommit c1af985d27da (\\\"scsi: mpi3mr: Add Event acknowledgment logic\\\")\\nintroduced an array mrioc-\u003eevtack_cmds but initialization of the array\\nelements was missed. They are just zero cleared. The function\\nmpi3mr_complete_evt_ack() refers host_tag field of the elements. Due to the\\nzero value of the host_tag field, the function calls clear_bit() for\\nmrico-\u003eevtack_cmds_bitmap with wrong bit index. This results in memory\\naccess to invalid address and \\\"BUG: KASAN: use-after-free\\\". This BUG was\\nobserved at eHBA-9600 firmware update to version 8.3.1.0. To fix it, add\\nthe missing initialization of mrioc-\u003eevtack_cmds.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4e0dfdb48a824deac3dfbc67fb856ef2aee13529\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/67989091e11a974003ddf2ec39bc613df8eadd83\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e39ea831ebad4ab15c4748cb62a397a8abcca36e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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