FKIE_CVE-2026-23059

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-02-05 14:57
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Sanitize payload size to prevent member overflow In qla27xx_copy_fpin_pkt() and qla27xx_copy_multiple_pkt(), the frame_size reported by firmware is used to calculate the copy length into item->iocb. However, the iocb member is defined as a fixed-size 64-byte array within struct purex_item. If the reported frame_size exceeds 64 bytes, subsequent memcpy calls will overflow the iocb member boundary. While extra memory might be allocated, this cross-member write is unsafe and triggers warnings under CONFIG_FORTIFY_SOURCE. Fix this by capping total_bytes to the size of the iocb member (64 bytes) before allocation and copying. This ensures all copies remain within the bounds of the destination structure member.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1922468a4a80424e5a69f7ba50adcee37f4722e9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/19bc5f2a6962dfaa0e32d0e0bc2271993d85d414
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/408bfa8d70f79ac696cec1bdbdfb3bf43a02e6d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aa14451fa5d5f2de919384c637e2a8c604e1a1fe
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Sanitize payload size to prevent member overflow\n\nIn qla27xx_copy_fpin_pkt() and qla27xx_copy_multiple_pkt(), the frame_size\nreported by firmware is used to calculate the copy length into\nitem-\u003eiocb. However, the iocb member is defined as a fixed-size 64-byte\narray within struct purex_item.\n\nIf the reported frame_size exceeds 64 bytes, subsequent memcpy calls will\noverflow the iocb member boundary. While extra memory might be allocated,\nthis cross-member write is unsafe and triggers warnings under\nCONFIG_FORTIFY_SOURCE.\n\nFix this by capping total_bytes to the size of the iocb member (64 bytes)\nbefore allocation and copying. This ensures all copies remain within the\nbounds of the destination structure member."
    }
  ],
  "id": "CVE-2026-23059",
  "lastModified": "2026-02-05T14:57:20.563",
  "metrics": {},
  "published": "2026-02-04T17:16:16.583",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1922468a4a80424e5a69f7ba50adcee37f4722e9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/19bc5f2a6962dfaa0e32d0e0bc2271993d85d414"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/408bfa8d70f79ac696cec1bdbdfb3bf43a02e6d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aa14451fa5d5f2de919384c637e2a8c604e1a1fe"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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