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FKIE_CVE-2023-54024

Vulnerability from fkie_nvd - Published: 2025-12-24 11:15 - Updated: 2026-06-17 06:46
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy target device if coalesced MMIO unregistration fails Destroy and free the target coalesced MMIO device if unregistering said device fails. As clearly noted in the code, kvm_io_bus_unregister_dev() does not destroy the target device. BUG: memory leak unreferenced object 0xffff888112a54880 (size 64): comm "syz-executor.2", pid 5258, jiffies 4297861402 (age 14.129s) hex dump (first 32 bytes): 38 c7 67 15 00 c9 ff ff 38 c7 67 15 00 c9 ff ff 8.g.....8.g..... e0 c7 e1 83 ff ff ff ff 00 30 67 15 00 c9 ff ff .........0g..... backtrace: [<0000000006995a8a>] kmalloc include/linux/slab.h:556 [inline] [<0000000006995a8a>] kzalloc include/linux/slab.h:690 [inline] [<0000000006995a8a>] kvm_vm_ioctl_register_coalesced_mmio+0x8e/0x3d0 arch/x86/kvm/../../../virt/kvm/coalesced_mmio.c:150 [<00000000022550c2>] kvm_vm_ioctl+0x47d/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3323 [<000000008a75102f>] vfs_ioctl fs/ioctl.c:46 [inline] [<000000008a75102f>] file_ioctl fs/ioctl.c:509 [inline] [<000000008a75102f>] do_vfs_ioctl+0xbab/0x1160 fs/ioctl.c:696 [<0000000080e3f669>] ksys_ioctl+0x76/0xa0 fs/ioctl.c:713 [<0000000059ef4888>] __do_sys_ioctl fs/ioctl.c:720 [inline] [<0000000059ef4888>] __se_sys_ioctl fs/ioctl.c:718 [inline] [<0000000059ef4888>] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:718 [<000000006444fa05>] do_syscall_64+0x9f/0x4e0 arch/x86/entry/common.c:290 [<000000009a4ed50b>] entry_SYSCALL_64_after_hwframe+0x49/0xbe BUG: leak checking failed
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/10c2a20d73e99463e69b7e92706791656adc16d7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76a9886e1b61ce5592df5ae78a19ed30399ae189
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/999439fd5da5a76253e2f2c37b94204f47d75491
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1cb1fac22abf102ffeb29dd3eeca208a3869d54
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccf6a7fb1aedb1472e1241ee55e4d26b68f8d066
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fb436dd6914325075f07d19851ab277b7a693ae7
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "virt/kvm/coalesced_mmio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "10c2a20d73e99463e69b7e92706791656adc16d7",
              "status": "affected",
              "version": "7d1bc32d6477ff96a32695ea4be8144e4513ab2d",
              "versionType": "git"
            },
            {
              "lessThan": "76a9886e1b61ce5592df5ae78a19ed30399ae189",
              "status": "affected",
              "version": "2a20592baff59c5351c5200ec667e1a2aa22af85",
              "versionType": "git"
            },
            {
              "lessThan": "999439fd5da5a76253e2f2c37b94204f47d75491",
              "status": "affected",
              "version": "5d3c4c79384af06e3c8e25b7770b6247496b4417",
              "versionType": "git"
            },
            {
              "lessThan": "ccf6a7fb1aedb1472e1241ee55e4d26b68f8d066",
              "status": "affected",
              "version": "5d3c4c79384af06e3c8e25b7770b6247496b4417",
              "versionType": "git"
            },
            {
              "lessThan": "fb436dd6914325075f07d19851ab277b7a693ae7",
              "status": "affected",
              "version": "5d3c4c79384af06e3c8e25b7770b6247496b4417",
              "versionType": "git"
            },
            {
              "lessThan": "b1cb1fac22abf102ffeb29dd3eeca208a3869d54",
              "status": "affected",
              "version": "5d3c4c79384af06e3c8e25b7770b6247496b4417",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "168e82f640ed1891a700bdb43e37da354b2ab63c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "50cbad42bfea8c052b7ca590bd4126cdc898713c",
              "versionType": "git"
            },
            {
              "lessThan": "5.4.235",
              "status": "affected",
              "version": "5.4.119",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.173",
              "status": "affected",
              "version": "5.10.37",
              "versionType": "semver"
            },
            {
              "lessThan": "5.12",
              "status": "affected",
              "version": "5.11.21",
              "versionType": "semver"
            },
            {
              "lessThan": "5.13",
              "status": "affected",
              "version": "5.12.4",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "virt/kvm/coalesced_mmio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.235",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.173",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.99",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: Destroy target device if coalesced MMIO unregistration fails\n\nDestroy and free the target coalesced MMIO device if unregistering said\ndevice fails.  As clearly noted in the code, kvm_io_bus_unregister_dev()\ndoes not destroy the target device.\n\n  BUG: memory leak\n  unreferenced object 0xffff888112a54880 (size 64):\n    comm \"syz-executor.2\", pid 5258, jiffies 4297861402 (age 14.129s)\n    hex dump (first 32 bytes):\n      38 c7 67 15 00 c9 ff ff 38 c7 67 15 00 c9 ff ff  8.g.....8.g.....\n      e0 c7 e1 83 ff ff ff ff 00 30 67 15 00 c9 ff ff  .........0g.....\n    backtrace:\n      [\u003c0000000006995a8a\u003e] kmalloc include/linux/slab.h:556 [inline]\n      [\u003c0000000006995a8a\u003e] kzalloc include/linux/slab.h:690 [inline]\n      [\u003c0000000006995a8a\u003e] kvm_vm_ioctl_register_coalesced_mmio+0x8e/0x3d0 arch/x86/kvm/../../../virt/kvm/coalesced_mmio.c:150\n      [\u003c00000000022550c2\u003e] kvm_vm_ioctl+0x47d/0x1600 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3323\n      [\u003c000000008a75102f\u003e] vfs_ioctl fs/ioctl.c:46 [inline]\n      [\u003c000000008a75102f\u003e] file_ioctl fs/ioctl.c:509 [inline]\n      [\u003c000000008a75102f\u003e] do_vfs_ioctl+0xbab/0x1160 fs/ioctl.c:696\n      [\u003c0000000080e3f669\u003e] ksys_ioctl+0x76/0xa0 fs/ioctl.c:713\n      [\u003c0000000059ef4888\u003e] __do_sys_ioctl fs/ioctl.c:720 [inline]\n      [\u003c0000000059ef4888\u003e] __se_sys_ioctl fs/ioctl.c:718 [inline]\n      [\u003c0000000059ef4888\u003e] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:718\n      [\u003c000000006444fa05\u003e] do_syscall_64+0x9f/0x4e0 arch/x86/entry/common.c:290\n      [\u003c000000009a4ed50b\u003e] entry_SYSCALL_64_after_hwframe+0x49/0xbe\n\n  BUG: leak checking failed"
    }
  ],
  "id": "CVE-2023-54024",
  "lastModified": "2026-06-17T06:46:33.507",
  "metrics": {},
  "published": "2025-12-24T11:15:55.403",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/10c2a20d73e99463e69b7e92706791656adc16d7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/76a9886e1b61ce5592df5ae78a19ed30399ae189"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/999439fd5da5a76253e2f2c37b94204f47d75491"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b1cb1fac22abf102ffeb29dd3eeca208a3869d54"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ccf6a7fb1aedb1472e1241ee55e4d26b68f8d066"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fb436dd6914325075f07d19851ab277b7a693ae7"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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