cve-2026-64103

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    {
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      "url": "https://ubuntu.com/security/notices/USN-8664-1"
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    {
      "id": "USN-8668-1",
      "source": "usn",
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      "url": "https://ubuntu.com/security/notices/USN-8668-1"
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    {
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      "source": "usn",
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      "source": "usn",
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      "title": "Linux kernel (Azure) vulnerabilities",
      "url": "https://ubuntu.com/security/notices/USN-8761-1"
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    {
      "id": "USN-8729-2",
      "source": "usn",
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      "url": "https://ubuntu.com/security/notices/USN-8729-2"
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    {
      "id": "USN-8761-2",
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      "url": "https://ubuntu.com/security/notices/USN-8761-2"
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    {
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      "url": "https://ubuntu.com/security/notices/USN-8781-1"
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    {
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      "source": "usn",
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      "url": "https://ubuntu.com/security/notices/USN-8668-2"
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    {
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      "url": "https://ubuntu.com/security/notices/USN-8728-2"
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    {
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    {
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      "title": "Linux kernel (AWS FIPS) vulnerabilities",
      "url": "https://ubuntu.com/security/notices/USN-8729-5"
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  ],
  "cve": "CVE-2026-64103",
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        "enrichment": {
          "confidence": 99.0,
          "confidence_source": "inferred",
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              "source": "inferred"
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            {
              "score": 100.0,
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        "original": {
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          "source": "cna",
          "vendor": "Linux"
        },
        "product": "linux_kernel",
        "vendor": "linux"
      },
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            "status": "unaffected",
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              "value": "[2.1.0,2.2.0)"
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            "versions": {
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        ],
        "enrichment": {
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          "confidence_source": "inferred",
          "scores": [
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              "source": "matching"
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        "original": {
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          "source": "cna",
          "vendor": "Linux"
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        "product": "linux_kernel",
        "vendor": "linux"
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    ],
    "created": "2026-07-21T18:15:10.269617+00:00",
    "updated": "2026-08-13T12:45:03.415121+00:00",
    "vendors": [
      "linux",
      "linux$PRODUCT$linux_kernel"
    ]
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  "epss": {
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  "mitre": {
    "cpes": [
      "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
    ],
    "created": "2026-07-19T15:40:07.372000+00:00",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: isci: Fix use-after-free in device removal path\n\nThe ISCI completion tasklet is initialized in isci_host_alloc()\n(drivers/scsi/isci/init.c:496) and scheduled from both MSI-X and legacy\ninterrupt handlers (drivers/scsi/isci/host.c:223,613).\n\nisci_host_deinit() stops the controller and waits for stop completion,\nbut it never kills completion_tasklet before teardown continues. A\ntop-of-function tasklet_kill() is not sufficient here: interrupts are\nonly disabled when isci_host_stop_complete() runs, so until\nwait_for_stop() returns the IRQ handlers can still requeue the\ntasklet. The tasklet callback also re-enables interrupts after draining\ncompletions, so killing the tasklet before the source is quiesced leaves\nthe same race open.\n\nOnce wait_for_stop() returns, no further IRQ-driven scheduling can\noccur. Kill completion_tasklet there so teardown cannot race a queued\ntasklet running on a dead ihost. On remove or unload, the stale callback\ncan otherwise dereference ihost and touch ihost->smu_registers after the\nhost lifetime ends.\n\nA UML + KASAN analogue reproduced the failure class both with no\ntasklet_kill() and with tasklet_kill() placed before source quiesce, and\nstayed clean once the kill happened after quiescing the scheduling\nsource.\n\nThis mirrors commit f6ab594672d4 (\"scsi: aic94xx: fix use-after-free in\ndevice removal path\"), but ISCI needs the kill after wait_for_stop().",
    "metrics": {
      "cvssV2_0": {},
      "cvssV3_0": {},
      "cvssV3_1": {},
      "cvssV4_0": {}
    },
    "mitre_repo_path": "cves/2026/64xxx/CVE-2026-64103.json",
    "references": [
      "https://git.kernel.org/stable/c/1412995e10c74644b47f242aea6e4f3d4180e806",
      "https://git.kernel.org/stable/c/309c6058622d080fe8c2fab87c30da82d834d989",
      "https://git.kernel.org/stable/c/6d40f2f103bb30f52f3dbadbe2c3fdf274a9763c",
      "https://git.kernel.org/stable/c/a83d3e4daba40d49324cec1c51ed261e1ea48cf1",
      "https://git.kernel.org/stable/c/ab2266601a875982f2d2033f41e070a6d5e615e2",
      "https://git.kernel.org/stable/c/b52a8d52c3125ec9a93106ed816582368de34426",
      "https://git.kernel.org/stable/c/b9ff8631006233ba246828ac70409d2cb2da38d3",
      "https://git.kernel.org/stable/c/cb9e72c50e6c81a5903f27e0b397ce8525d7539b"
    ],
    "title": "scsi: isci: Fix use-after-free in device removal path",
    "updated": "2026-07-19T15:40:07.372000+00:00",
    "vendors": [
      "linux",
      "linux$PRODUCT$linux_kernel"
    ],
    "weaknesses": []
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  "nvd": {
    "cpes": [
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      "cpe:2.3:o:linux:linux_kernel:3.0:-:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:3.0:rc6:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:3.0:rc7:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*",
      "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*"
    ],
    "created": "2026-07-19T16:17:51.533000+00:00",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: isci: Fix use-after-free in device removal path\n\nThe ISCI completion tasklet is initialized in isci_host_alloc()\n(drivers/scsi/isci/init.c:496) and scheduled from both MSI-X and legacy\ninterrupt handlers (drivers/scsi/isci/host.c:223,613).\n\nisci_host_deinit() stops the controller and waits for stop completion,\nbut it never kills completion_tasklet before teardown continues. A\ntop-of-function tasklet_kill() is not sufficient here: interrupts are\nonly disabled when isci_host_stop_complete() runs, so until\nwait_for_stop() returns the IRQ handlers can still requeue the\ntasklet. The tasklet callback also re-enables interrupts after draining\ncompletions, so killing the tasklet before the source is quiesced leaves\nthe same race open.\n\nOnce wait_for_stop() returns, no further IRQ-driven scheduling can\noccur. Kill completion_tasklet there so teardown cannot race a queued\ntasklet running on a dead ihost. On remove or unload, the stale callback\ncan otherwise dereference ihost and touch ihost->smu_registers after the\nhost lifetime ends.\n\nA UML + KASAN analogue reproduced the failure class both with no\ntasklet_kill() and with tasklet_kill() placed before source quiesce, and\nstayed clean once the kill happened after quiescing the scheduling\nsource.\n\nThis mirrors commit f6ab594672d4 (\"scsi: aic94xx: fix use-after-free in\ndevice removal path\"), but ISCI needs the kill after wait_for_stop().",
    "metrics": {
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      "cvssV3_0": {},
      "cvssV3_1": {
        "score": 7.8,
        "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
      },
      "cvssV4_0": {}
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      "https://git.kernel.org/stable/c/309c6058622d080fe8c2fab87c30da82d834d989",
      "https://git.kernel.org/stable/c/6d40f2f103bb30f52f3dbadbe2c3fdf274a9763c",
      "https://git.kernel.org/stable/c/a83d3e4daba40d49324cec1c51ed261e1ea48cf1",
      "https://git.kernel.org/stable/c/ab2266601a875982f2d2033f41e070a6d5e615e2",
      "https://git.kernel.org/stable/c/b52a8d52c3125ec9a93106ed816582368de34426",
      "https://git.kernel.org/stable/c/b9ff8631006233ba246828ac70409d2cb2da38d3",
      "https://git.kernel.org/stable/c/cb9e72c50e6c81a5903f27e0b397ce8525d7539b"
    ],
    "title": null,
    "updated": "2026-08-12T15:49:19.403000+00:00",
    "vendors": [
      "linux",
      "linux$PRODUCT$linux_kernel"
    ],
    "weaknesses": [
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  "opencve": {
    "changes": [
      {
        "created": "2026-07-19T16:15:00+00:00",
        "data": [
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    "description": "In the Linux kernel, the following vulnerability has been resolved:\nscsi: isci: Fix use-after-free in device removal path\nThe ISCI completion tasklet is initialized in isci_host_alloc()\n(drivers/scsi/isci/init.c:496) and scheduled from both MSI-X and legacy\ninterrupt handlers (drivers/scsi/isci/host.c:223,613).\nisci_host_deinit() stops the controller and waits for stop completion,\nbut it never kills completion_tasklet before teardown continues. A\ntop-of-function tasklet_kill() is not sufficient here: interrupts are\nonly disabled when isci_host_stop_complete() runs, so until\nwait_for_stop() returns the IRQ handlers can still requeue the\ntasklet. The tasklet callback also re-enables interrupts after draining\ncompletions, so killing the tasklet before the source is quiesced leaves\nthe same race open.\nOnce wait_for_stop() returns, no further IRQ-driven scheduling can\noccur. Kill completion_tasklet there so teardown cannot race a queued\ntasklet running on a dead ihost. On remove or unload, the stale callback\ncan otherwise dereference ihost and touch ihost->smu_registers after the\nhost lifetime ends.\nA UML + KASAN analogue reproduced the failure class both with no\ntasklet_kill() and with tasklet_kill() placed before source quiesce, and\nstayed clean once the kill happened after quiescing the scheduling\nsource.\nThis mirrors commit f6ab594672d4 (\"scsi: aic94xx: fix use-after-free in\ndevice removal path\"), but ISCI needs the kill after wait_for_stop().",
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