{
  "cveId": "CVE-2023-53590",
  "url": "https://patchblox.com/security/cve/CVE-2023-53590",
  "summary": "CVE-2023-53590 is fixed in 20 products on 1 platform, first by ALAS2023-2023-138, released March 20, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  sctp: add a refcnt in sctp_stream_priorities to...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop  With this refcnt added in sctp_stream_priorities, we don\u0027t need to traverse all streams to check if the prio is used by other streams when freeing one stream\u0027s prio in sctp_sched_prio_free_sid(). This can avoid a nested loop (up to 65535 * 65535), which may cause a stuck as Ying reported:      watchdog: BUG: soft lockup - CPU#23 stuck for 26s! [ksoftirqd/23:136]     Call Trace:      \u003CTASK\u003E      sctp_sched_prio_free_sid\u002B0xab/0x100 [sctp]      sctp_stream_free_ext\u002B0x64/0xa0 [sctp]      sctp_stream_free\u002B0x31/0x50 [sctp]      sctp_association_free\u002B0xa5/0x200 [sctp]  Note that it doesn\u0027t need to use refcount_t type for this counter, as its accessing is always protected under the sock lock.  v1-\u003Ev2:  - add a check in sctp_sched_prio_set to avoid the possible prio_head    refcnt overflow.",
  "published": "2023-03-20T18:27:00Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00121,
  "epssPercentile": 0.01929,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-headers",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.1.19-30.43",
      "release": "amzn 2023",
      "fixedVersion": "1.0-0.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53590",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53590",
      "released": "2025-10-04T16:15:55Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53590",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53590",
      "released": "2025-10-04T16:15:55Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.20-1",
      "fix": "DEBIAN-CVE-2023-53590",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53590",
      "released": "2025-10-04T16:15:55Z"
    },
    {
      "platform": "linux",
      "product": "perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.19-30.43.amzn2023",
      "fix": "ALAS2023-2023-138",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-138",
      "released": "2023-03-20T18:27:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}