ghsa-6j5m-wpm9-j86c
Vulnerability from github
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().
{
"affected": [],
"aliases": [
"CVE-2023-53320"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-16T17:15:38Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()\n\nThe function mpi3mr_get_all_tgt_info() has four issues:\n\n1) It calculates valid entry length in alltgt_info assuming the header part\n of the struct mpi3mr_device_map_info would equal to sizeof(u32). The\n correct size is sizeof(u64).\n\n2) When it calculates the valid entry length kern_entrylen, it excludes one\n entry by subtracting 1 from num_devices.\n\n3) It copies num_device by calling memcpy(). Substitution is enough.\n\n4) It does not specify the calculated length to sg_copy_from_buffer().\n Instead, it specifies the payload length which is larger than the\n alltgt_info size. It causes \"BUG: KASAN: slab-out-of-bounds\".\n\nFix the issues by using the correct header size, removing the subtraction\nfrom num_devices, replacing the memcpy() with substitution and specifying\nthe correct length to sg_copy_from_buffer().",
"id": "GHSA-6j5m-wpm9-j86c",
"modified": "2025-09-16T18:31:27Z",
"published": "2025-09-16T18:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53320"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2f3d3fa5b8ed7d3b147478f42b00b468eeb1ecd2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8ba997b22f2cd5d29aad8c39f6201f7608ed0c04"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fb428a2005fc1260d18b989cc5199f281617f44d"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
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