CVE-2021-46963 scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand()

2024-02-2718:47:01

Linux

www.cve.org

vulnerability

resolution

scsi

qla2xxx

crash

linux kernel

fix

smatch warning

srb

7.8 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.4%

JSON

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand()

RIP: 0010:kmem_cache_free+0xfa/0x1b0
Call Trace:
   qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx]
   scsi_queue_rq+0x5e2/0xa40
   __blk_mq_try_issue_directly+0x128/0x1d0
   blk_mq_request_issue_directly+0x4e/0xb0

Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now
allocated by upper layers. This fixes smatch warning of srb unintended
free.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/scsi/qla2xxx/qla_os.c"
    ],
    "versions": [
      {
        "version": "64a8c5018a4b",
        "lessThan": "c5ab9b67d8b0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "dea6ee717303",
        "lessThan": "77509a238547",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "af2a0c51b120",
        "lessThan": "702cdaa2c628",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "af2a0c51b120",
        "lessThan": "80ef24175df2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "af2a0c51b120",
        "lessThan": "a73208e32441",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "af2a0c51b120",
        "lessThan": "6641df81ab79",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/scsi/qla2xxx/qla_os.c"
    ],
    "versions": [
      {
        "version": "5.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.5",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.191",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.118",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.36",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.11.20",
        "lessThanOrEqual": "5.11.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.12.3",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]