CVE-2023-53320 (GCVE-0-2023-53320)

Vulnerability from cvelistv5 – Published: 2025-09-16 16:11 – Updated: 2026-01-14 18:32
VLAI?
Title
scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info() The function mpi3mr_get_all_tgt_info() has four issues: 1) It calculates valid entry length in alltgt_info assuming the header part of the struct mpi3mr_device_map_info would equal to sizeof(u32). The correct size is sizeof(u64). 2) When it calculates the valid entry length kern_entrylen, it excludes one entry by subtracting 1 from num_devices. 3) It copies num_device by calling memcpy(). Substitution is enough. 4) It does not specify the calculated length to sg_copy_from_buffer(). Instead, it specifies the payload length which is larger than the alltgt_info size. It causes "BUG: KASAN: slab-out-of-bounds". Fix the issues by using the correct header size, removing the subtraction from num_devices, replacing the memcpy() with substitution and specifying the correct length to sg_copy_from_buffer().
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f5e6d5a343761081317c89d23489c93fbafc69ff , < 8ba997b22f2cd5d29aad8c39f6201f7608ed0c04 (git)
Affected: f5e6d5a343761081317c89d23489c93fbafc69ff , < 2f3d3fa5b8ed7d3b147478f42b00b468eeb1ecd2 (git)
Affected: f5e6d5a343761081317c89d23489c93fbafc69ff , < fb428a2005fc1260d18b989cc5199f281617f44d (git)
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    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (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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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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