FKIE_CVE-2023-53590
Vulnerability from fkie_nvd - Published: 2025-10-04 16:15 - Updated: 2026-06-17 06:45
Severity
Summary
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't need to
traverse all streams to check if the prio is used by other streams
when freeing one stream's 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:
<TASK>
sctp_sched_prio_free_sid+0xab/0x100 [sctp]
sctp_stream_free_ext+0x64/0xa0 [sctp]
sctp_stream_free+0x31/0x50 [sctp]
sctp_association_free+0xa5/0x200 [sctp]
Note that it doesn't need to use refcount_t type for this counter,
as its accessing is always protected under the sock lock.
v1->v2:
- add a check in sctp_sched_prio_set to avoid the possible prio_head
refcnt overflow.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.1 | |
| linux | linux_kernel | 6.1 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"include/net/sctp/structs.h",
"net/sctp/stream_sched_prio.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "cec326443f01283ef68ea00c06ea073b1835a562",
"status": "affected",
"version": "a7555681e50bdebed2c40ff7404ee73c2e932993",
"versionType": "git"
},
{
"lessThan": "8ee401f89cdb10f39098c0656d695b2bc4052100",
"status": "affected",
"version": "176ee6c673ccd118e9392fd2dbb165423bdb99ca",
"versionType": "git"
},
{
"lessThan": "bf5540cbd20e2dae2c81ab9b31deef41ef147d0a",
"status": "affected",
"version": "0dfb9a566327182387c90100ea54d8426cee8c67",
"versionType": "git"
},
{
"lessThan": "03c3a5584a0a29821e59b7834635ce823050caaa",
"status": "affected",
"version": "9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9",
"versionType": "git"
},
{
"lessThan": "6d529928ea212127851a2df8c40d822237ca946b",
"status": "affected",
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"versionType": "git"
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{
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"status": "affected",
"version": "9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9",
"versionType": "git"
},
{
"status": "affected",
"version": "fa20f88271259d42ebe66f0a8c4c20199e888c99",
"versionType": "git"
},
{
"lessThan": "5.4.235",
"status": "affected",
"version": "5.4.226",
"versionType": "semver"
},
{
"lessThan": "5.10.173",
"status": "affected",
"version": "5.10.158",
"versionType": "semver"
},
{
"lessThan": "5.15.100",
"status": "affected",
"version": "5.15.82",
"versionType": "semver"
},
{
"lessThan": "6.1",
"status": "affected",
"version": "6.0.12",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"include/net/sctp/structs.h",
"net/sctp/stream_sched_prio.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.1"
},
{
"lessThan": "6.1",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.235",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.173",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.100",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.18",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.2.*",
"status": "unaffected",
"version": "6.2.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
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"cveTags": [],
"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\u0027t need to\ntraverse all streams to check if the prio is used by other streams\nwhen freeing one stream\u0027s 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 \u003cTASK\u003e\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\u0027t need to use refcount_t type for this counter,\nas its accessing is always protected under the sock lock.\n\nv1-\u003ev2:\n - add a check in sctp_sched_prio_set to avoid the possible prio_head\n refcnt overflow."
}
],
"id": "CVE-2023-53590",
"lastModified": "2026-06-17T06:45:40.193",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-10-04T16:15:55.437",
"references": [
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"tags": [
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
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"description": [
{
"lang": "en",
"value": "CWE-667"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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