CVE-2026-72126 (GCVE-0-2026-72126)
Vulnerability from cvelistv5
Published
2026-08-15 05:53
Modified
2026-10-16 18:44
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: can: isotp: use unconditional synchronize_rcu() in isotp_release() isotp_notify() unregisters the (RCU) CAN filters via can_rx_unregister() and clears so->bound without waiting for a grace period. isotp_release() uses so->bound to decide whether it needs to call synchronize_rcu() before cancelling so->rxtimer, so when NETDEV_UNREGISTER runs first it skips that synchronize_rcu() and can cancel the timer while an in-flight isotp_rcv() is still executing and about to re-arm it via isotp_send_fc(), leading to a use-after-free timer callback on the freed socket. sakisho-bot remarked a problem with rtnl_lock held in isotp_notify(), therefore make isotp_release() always call synchronize_rcu() before cancelling the timers, regardless of so->bound. This still closes the original race (isotp_notify() clearing so->bound without waiting for in-flight isotp_rcv() callers before isotp_release() cancels the RX timer) without adding any RCU wait to the netdevice notifier path.
References
Impacted products
Vendor Product Version
Linux Linux Version: 22bfa94db2ef6900c790884fa9461486516626e9
Version: 14a4696bc3118ba49da28f79280e1d55603aa737
Version: 14a4696bc3118ba49da28f79280e1d55603aa737
Version: 14a4696bc3118ba49da28f79280e1d55603aa737
Version: 14a4696bc3118ba49da28f79280e1d55603aa737
Version: 14a4696bc3118ba49da28f79280e1d55603aa737
Version: 14a4696bc3118ba49da28f79280e1d55603aa737
Version: 14a4696bc3118ba49da28f79280e1d55603aa737
Version: 80c6ddf771df2ef786f28c1ca5919b3f1080091b
Version: ebf91625b3e404bd2b4b694c7ee71c1e8f8bd08f
Version: 5.10.50   ≤
Version: 5.12.17   ≤
Version: 5.13.2   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-72126",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T18:42:20.650624Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-16T18:44:58.135Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/can/isotp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "945d9894502cd9124f5d676181c542ed2000f7c0",
              "status": "affected",
              "version": "22bfa94db2ef6900c790884fa9461486516626e9",
              "versionType": "git"
            },
            {
              "lessThan": "59672aa4bcd8d32172c1ff6a179583981d6acabc",
              "status": "affected",
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "versionType": "git"
            },
            {
              "lessThan": "15413a082df69175c2f96aeab4c26fe1ff7cff03",
              "status": "affected",
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "versionType": "git"
            },
            {
              "lessThan": "6280eda96e0707264849fa7d036fed873c1f8a6d",
              "status": "affected",
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "versionType": "git"
            },
            {
              "lessThan": "cb6abc584a1bfab107ac003d64948a4aef1730aa",
              "status": "affected",
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "versionType": "git"
            },
            {
              "lessThan": "b88a511308779c225005d7994b8744561bdbafbc",
              "status": "affected",
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "versionType": "git"
            },
            {
              "lessThan": "b8278ff605187ef3fa0f2705e93251cce4c4f8ee",
              "status": "affected",
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "versionType": "git"
            },
            {
              "lessThan": "9b1a02e0d980ac6b0e36a90378f847062f81d7e4",
              "status": "affected",
              "version": "14a4696bc3118ba49da28f79280e1d55603aa737",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "80c6ddf771df2ef786f28c1ca5919b3f1080091b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ebf91625b3e404bd2b4b694c7ee71c1e8f8bd08f",
              "versionType": "git"
            },
            {
              "lessThan": "5.10.261",
              "status": "affected",
              "version": "5.10.50",
              "versionType": "semver"
            },
            {
              "lessThan": "5.13",
              "status": "affected",
              "version": "5.12.17",
              "versionType": "semver"
            },
            {
              "lessThan": "5.14",
              "status": "affected",
              "version": "5.13.2",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/can/isotp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.14"
            },
            {
              "lessThan": "5.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "5.10.50",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.12.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.13.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: use unconditional synchronize_rcu() in isotp_release()\n\nisotp_notify() unregisters the (RCU) CAN filters via can_rx_unregister()\nand clears so-\u003ebound without waiting for a grace period. isotp_release()\nuses so-\u003ebound to decide whether it needs to call synchronize_rcu()\nbefore cancelling so-\u003erxtimer, so when NETDEV_UNREGISTER runs first it\nskips that synchronize_rcu() and can cancel the timer while an\nin-flight isotp_rcv() is still executing and about to re-arm it via\nisotp_send_fc(), leading to a use-after-free timer callback on the\nfreed socket.\n\nsakisho-bot remarked a problem with rtnl_lock held in isotp_notify(),\ntherefore make isotp_release() always call synchronize_rcu() before\ncancelling the timers, regardless of so-\u003ebound. This still closes the\noriginal race (isotp_notify() clearing so-\u003ebound without waiting for\nin-flight isotp_rcv() callers before isotp_release() cancels the RX\ntimer) without adding any RCU wait to the netdevice notifier path."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The UAF is reached through local AF_CAN CAN_ISOTP socket syscalls (socket/bind/close) racing in-kernel ISO-TP RX; a CAN peer can deliver frames, but exploitation requires a local process to close the socket while NETDEV_UNREGISTER clears so-\u003ebound.\nAC:L - The attacker controls all race sides: ISO-TP RX traffic via a local CAN socket or bus peer, concurrent close() on the ISOTP socket, and NETDEV_UNREGISTER by deleting the bound vcan/CAN interface (e.g., in a user namespace with CAP_NET_ADMIN).\nPR:L - CAN_ISOTP socket create/bind/sendmsg/close paths impose no CAP_NET_ADMIN check; an unprivileged local user with access to a CAN netdev, including a user-namespace vcan they create, can reach the vulnerable release/timer path.\nUI:N - No victim interaction is required once the attacker can execute local code; they can open the ISO-TP socket, drive RX via CAN frames, delete the netdev, and close the socket to race isotp_rcv() against isotp_release().\nS:U - Exploitation corrupts kernel heap memory within the same OS security boundary (standard kernel UAF), not a VM/host or IOMMU sandbox escape.\nC:H - Use-after-free of struct isotp_sock in isotp_rx_timer_handler reads freed memory (so-\u003erx.state, sock fields), enabling heap grooming for arbitrary kernel memory disclosure per conservative UAF scoring guidance.\nI:H - The timer callback performs writes to fields within the freed isotp_sock/socket object, giving attacker-influenced kernel heap corruption that can be developed into arbitrary write or privilege-escalation primitives.\nA:H - Executing isotp_rx_timer_handler on a freed socket can cause kernel oops/panic or fatal memory corruption; the UAF is reliably triggerable with attacker-controlled timing."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:40:40.020Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/945d9894502cd9124f5d676181c542ed2000f7c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/59672aa4bcd8d32172c1ff6a179583981d6acabc"
        },
        {
          "url": "https://git.kernel.org/stable/c/15413a082df69175c2f96aeab4c26fe1ff7cff03"
        },
        {
          "url": "https://git.kernel.org/stable/c/6280eda96e0707264849fa7d036fed873c1f8a6d"
        },
        {
          "url": "https://git.kernel.org/stable/c/cb6abc584a1bfab107ac003d64948a4aef1730aa"
        },
        {
          "url": "https://git.kernel.org/stable/c/b88a511308779c225005d7994b8744561bdbafbc"
        },
        {
          "url": "https://git.kernel.org/stable/c/b8278ff605187ef3fa0f2705e93251cce4c4f8ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/9b1a02e0d980ac6b0e36a90378f847062f81d7e4"
        }
      ],
      "title": "can: isotp: use unconditional synchronize_rcu() in isotp_release()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72126",
    "datePublished": "2026-08-15T05:53:03.642Z",
    "dateReserved": "2026-08-09T03:40:39.907Z",
    "dateUpdated": "2026-10-16T18:44:58.135Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-72126\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-16T18:42:20.650624Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-16T18:42:21.643Z\"}}], \"cna\": {\"title\": \"can: isotp: use unconditional synchronize_rcu() in isotp_release()\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:L - The UAF is reached through local AF_CAN CAN_ISOTP socket syscalls (socket/bind/close) racing in-kernel ISO-TP RX; a CAN peer can deliver frames, but exploitation requires a local process to close the socket while NETDEV_UNREGISTER clears so-\u003ebound.\\nAC:L - The attacker controls all race sides: ISO-TP RX traffic via a local CAN socket or bus peer, concurrent close() on the ISOTP socket, and NETDEV_UNREGISTER by deleting the bound vcan/CAN interface (e.g., in a user namespace with CAP_NET_ADMIN).\\nPR:L - CAN_ISOTP socket create/bind/sendmsg/close paths impose no CAP_NET_ADMIN check; an unprivileged local user with access to a CAN netdev, including a user-namespace vcan they create, can reach the vulnerable release/timer path.\\nUI:N - No victim interaction is required once the attacker can execute local code; they can open the ISO-TP socket, drive RX via CAN frames, delete the netdev, and close the socket to race isotp_rcv() against isotp_release().\\nS:U - Exploitation corrupts kernel heap memory within the same OS security boundary (standard kernel UAF), not a VM/host or IOMMU sandbox escape.\\nC:H - Use-after-free of struct isotp_sock in isotp_rx_timer_handler reads freed memory (so-\u003erx.state, sock fields), enabling heap grooming for arbitrary kernel memory disclosure per conservative UAF scoring guidance.\\nI:H - The timer callback performs writes to fields within the freed isotp_sock/socket object, giving attacker-influenced kernel heap corruption that can be developed into arbitrary write or privilege-escalation primitives.\\nA:H - Executing isotp_rx_timer_handler on a freed socket can cause kernel oops/panic or fatal memory corruption; the UAF is reliably triggerable with attacker-controlled timing.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"22bfa94db2ef6900c790884fa9461486516626e9\", \"lessThan\": \"945d9894502cd9124f5d676181c542ed2000f7c0\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14a4696bc3118ba49da28f79280e1d55603aa737\", \"lessThan\": \"59672aa4bcd8d32172c1ff6a179583981d6acabc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14a4696bc3118ba49da28f79280e1d55603aa737\", \"lessThan\": \"15413a082df69175c2f96aeab4c26fe1ff7cff03\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14a4696bc3118ba49da28f79280e1d55603aa737\", \"lessThan\": \"6280eda96e0707264849fa7d036fed873c1f8a6d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14a4696bc3118ba49da28f79280e1d55603aa737\", \"lessThan\": \"cb6abc584a1bfab107ac003d64948a4aef1730aa\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14a4696bc3118ba49da28f79280e1d55603aa737\", \"lessThan\": \"b88a511308779c225005d7994b8744561bdbafbc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14a4696bc3118ba49da28f79280e1d55603aa737\", \"lessThan\": \"b8278ff605187ef3fa0f2705e93251cce4c4f8ee\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"14a4696bc3118ba49da28f79280e1d55603aa737\", \"lessThan\": \"9b1a02e0d980ac6b0e36a90378f847062f81d7e4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"80c6ddf771df2ef786f28c1ca5919b3f1080091b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ebf91625b3e404bd2b4b694c7ee71c1e8f8bd08f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5.10.50\", \"lessThan\": \"5.10.261\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.12.17\", \"lessThan\": \"5.13\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"5.13.2\", \"lessThan\": \"5.14\", \"versionType\": \"semver\"}], \"programFiles\": [\"net/can/isotp.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.14\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.14\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.261\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.212\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.178\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.145\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.97\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.40\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"7.1.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.1.*\"}, {\"status\": \"unaffected\", \"version\": \"7.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/can/isotp.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/945d9894502cd9124f5d676181c542ed2000f7c0\"}, {\"url\": \"https://git.kernel.org/stable/c/59672aa4bcd8d32172c1ff6a179583981d6acabc\"}, {\"url\": \"https://git.kernel.org/stable/c/15413a082df69175c2f96aeab4c26fe1ff7cff03\"}, {\"url\": \"https://git.kernel.org/stable/c/6280eda96e0707264849fa7d036fed873c1f8a6d\"}, {\"url\": \"https://git.kernel.org/stable/c/cb6abc584a1bfab107ac003d64948a4aef1730aa\"}, {\"url\": \"https://git.kernel.org/stable/c/b88a511308779c225005d7994b8744561bdbafbc\"}, {\"url\": \"https://git.kernel.org/stable/c/b8278ff605187ef3fa0f2705e93251cce4c4f8ee\"}, {\"url\": \"https://git.kernel.org/stable/c/9b1a02e0d980ac6b0e36a90378f847062f81d7e4\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: isotp: use unconditional synchronize_rcu() in isotp_release()\\n\\nisotp_notify() unregisters the (RCU) CAN filters via can_rx_unregister()\\nand clears so-\u003ebound without waiting for a grace period. isotp_release()\\nuses so-\u003ebound to decide whether it needs to call synchronize_rcu()\\nbefore cancelling so-\u003erxtimer, so when NETDEV_UNREGISTER runs first it\\nskips that synchronize_rcu() and can cancel the timer while an\\nin-flight isotp_rcv() is still executing and about to re-arm it via\\nisotp_send_fc(), leading to a use-after-free timer callback on the\\nfreed socket.\\n\\nsakisho-bot remarked a problem with rtnl_lock held in isotp_notify(),\\ntherefore make isotp_release() always call synchronize_rcu() before\\ncancelling the timers, regardless of so-\u003ebound. This still closes the\\noriginal race (isotp_notify() clearing so-\u003ebound without waiting for\\nin-flight isotp_rcv() callers before isotp_release() cancels the RX\\ntimer) without adding any RCU wait to the netdevice notifier path.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.261\", \"versionStartIncluding\": \"5.10.50\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.212\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.178\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.145\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.97\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.40\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.1.5\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"7.2\", \"versionStartIncluding\": \"5.14\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.12.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.13.2\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-17T05:40:40.020Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-72126\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-16T18:44:58.135Z\", \"dateReserved\": \"2026-08-09T03:40:39.907Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-08-15T05:53:03.642Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.