CVE-2023-53590 (GCVE-0-2023-53590)
Vulnerability from cvelistv5
Published
2025-10-04 15:44
Modified
2025-10-04 15:44
Severity ?
VLAI Severity ?
EPSS score ?
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 |
Version: a7555681e50bdebed2c40ff7404ee73c2e932993 Version: 176ee6c673ccd118e9392fd2dbb165423bdb99ca Version: 0dfb9a566327182387c90100ea54d8426cee8c67 Version: 9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9 Version: 9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9 Version: 9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9 Version: fa20f88271259d42ebe66f0a8c4c20199e888c99 |
||
{
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"include/net/sctp/structs.h",
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{
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"status": "unaffected",
"version": "5.15.100",
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{
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{
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{
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"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."
}
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"providerMetadata": {
"dateUpdated": "2025-10-04T15:44:04.733Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"url": "https://git.kernel.org/stable/c/8ee401f89cdb10f39098c0656d695b2bc4052100"
},
{
"url": "https://git.kernel.org/stable/c/bf5540cbd20e2dae2c81ab9b31deef41ef147d0a"
},
{
"url": "https://git.kernel.org/stable/c/03c3a5584a0a29821e59b7834635ce823050caaa"
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{
"url": "https://git.kernel.org/stable/c/6d529928ea212127851a2df8c40d822237ca946b"
},
{
"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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"cveId": "CVE-2023-53590",
"datePublished": "2025-10-04T15:44:04.733Z",
"dateReserved": "2025-10-04T15:40:38.478Z",
"dateUpdated": "2025-10-04T15:44:04.733Z",
"state": "PUBLISHED"
},
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}
}
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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.
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