{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53590",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-04T15:40:38.478Z",
        "datePublished": "2025-10-04T15:44:04.733Z",
        "dateUpdated": "2026-05-23T15:29:48.061Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:29:48.061Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: add a refcnt in sctp_stream_priorities to avoid a nested loop\n\nWith this refcnt added in sctp_stream_priorities, we don't need to\ntraverse all streams to check if the prio is used by other streams\nwhen freeing one stream's prio in sctp_sched_prio_free_sid(). This\ncan avoid a nested loop (up to 65535 * 65535), which may cause a\nstuck as Ying reported:\n\n    watchdog: BUG: soft lockup - CPU#23 stuck for 26s! [ksoftirqd/23:136]\n    Call Trace:\n     <TASK>\n     sctp_sched_prio_free_sid+0xab/0x100 [sctp]\n     sctp_stream_free_ext+0x64/0xa0 [sctp]\n     sctp_stream_free+0x31/0x50 [sctp]\n     sctp_association_free+0xa5/0x200 [sctp]\n\nNote that it doesn't need to use refcount_t type for this counter,\nas its accessing is always protected under the sock lock.\n\nv1->v2:\n - add a check in sctp_sched_prio_set to avoid the possible prio_head\n   refcnt overflow."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/sctp/structs.h",
                        "net/sctp/stream_sched_prio.c"
                    ],
                    "versions": [
                        {
                            "version": "a7555681e50bdebed2c40ff7404ee73c2e932993",
                            "lessThan": "cec326443f01283ef68ea00c06ea073b1835a562",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "176ee6c673ccd118e9392fd2dbb165423bdb99ca",
                            "lessThan": "8ee401f89cdb10f39098c0656d695b2bc4052100",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0dfb9a566327182387c90100ea54d8426cee8c67",
                            "lessThan": "bf5540cbd20e2dae2c81ab9b31deef41ef147d0a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9",
                            "lessThan": "03c3a5584a0a29821e59b7834635ce823050caaa",
                            "status": "affected",
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                        },
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                            "lessThan": "6d529928ea212127851a2df8c40d822237ca946b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9",
                            "lessThan": "68ba44639537de6f91fe32783766322d41848127",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fa20f88271259d42ebe66f0a8c4c20199e888c99",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.4.226",
                            "lessThan": "5.4.235",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.158",
                            "lessThan": "5.10.173",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.82",
                            "lessThan": "5.15.100",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.12",
                            "lessThan": "6.1",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/net/sctp/structs.h",
                        "net/sctp/stream_sched_prio.c"
                    ],
                    "versions": [
                        {
                            "version": "6.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.235",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.173",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.100",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.18",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.5",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
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                    "nodes": [
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                            "negate": false,
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/cec326443f01283ef68ea00c06ea073b1835a562"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8ee401f89cdb10f39098c0656d695b2bc4052100"
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                    "url": "https://git.kernel.org/stable/c/bf5540cbd20e2dae2c81ab9b31deef41ef147d0a"
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                },
                {
                    "url": "https://git.kernel.org/stable/c/68ba44639537de6f91fe32783766322d41848127"
                }
            ],
            "title": "sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop",
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