{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50314",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-09-15T14:18:36.813Z",
        "datePublished": "2025-09-15T14:46:09.240Z",
        "dateUpdated": "2026-05-11T19:16:55.078Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:16:55.078Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: Fix hung when signal interrupts nbd_start_device_ioctl()\n\nsyzbot reported hung task [1].  The following program is a simplified\nversion of the reproducer:\n\nint main(void)\n{\n\tint sv[2], fd;\n\n\tif (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) < 0)\n\t\treturn 1;\n\tif ((fd = open(\"/dev/nbd0\", 0)) < 0)\n\t\treturn 1;\n\tif (ioctl(fd, NBD_SET_SIZE_BLOCKS, 0x81) < 0)\n\t\treturn 1;\n\tif (ioctl(fd, NBD_SET_SOCK, sv[0]) < 0)\n\t\treturn 1;\n\tif (ioctl(fd, NBD_DO_IT) < 0)\n\t\treturn 1;\n\treturn 0;\n}\n\nWhen signal interrupt nbd_start_device_ioctl() waiting the condition\natomic_read(&config->recv_threads) == 0, the task can hung because it\nwaits the completion of the inflight IOs.\n\nThis patch fixes the issue by clearing queue, not just shutdown, when\nsignal interrupt nbd_start_device_ioctl()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/block/nbd.c"
                    ],
                    "versions": [
                        {
                            "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
                            "lessThan": "3ba3846cb3e2fb3c6fbf79e998472821b298419e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
                            "lessThan": "c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
                            "lessThan": "3575949513ea3b387b30dac1e69468a923c86caf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
                            "lessThan": "b2700f98b3f4dd19fb4315b70581e5caff89eb49",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
                            "lessThan": "c0d73be0af8c1310713bc39a8d7a22e35084e14f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
                            "lessThan": "62006a72b05e0d38727eef5188700f2488be5e89",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
                            "lessThan": "35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5ea8d10802ec4c153a6e21eebaf412e2abd29736",
                            "lessThan": "1de7c3cf48fc41cd95adb12bd1ea9033a917798a",
                            "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/block/nbd.c"
                    ],
                    "versions": [
                        {
                            "version": "4.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.296",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.262",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.220",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.150",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.75",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19.17",
                            "lessThanOrEqual": "5.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.3",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "4.14.296"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "4.19.262"
                                },
                                {
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                                    "versionStartIncluding": "4.12",
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                                {
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                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "6.0.3"
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                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "6.1"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3ba3846cb3e2fb3c6fbf79e998472821b298419e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3575949513ea3b387b30dac1e69468a923c86caf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b2700f98b3f4dd19fb4315b70581e5caff89eb49"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c0d73be0af8c1310713bc39a8d7a22e35084e14f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/62006a72b05e0d38727eef5188700f2488be5e89"
                },
                {
                    "url": "https://git.kernel.org/stable/c/35fb7d4a53d9e36d1b91161ea9870d9c6d57dccf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1de7c3cf48fc41cd95adb12bd1ea9033a917798a"
                }
            ],
            "title": "nbd: Fix hung when signal interrupts nbd_start_device_ioctl()",
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}