CVE-2023-53590
Unknown
Unknown - Not Provided
BaseFortify
Vulnerability report for CVE-2023-53590, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2025-10-04
Last updated on: 2026-03-21
Assigner: kernel.org
Description
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'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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | 6.1 |
| linux | linux_kernel | 6.1 |
| linux | linux_kernel | From 6.2 (inc) to 6.2.5 (exc) |
| linux | linux_kernel | From 5.10.158 (inc) to 5.10.173 (exc) |
| linux | linux_kernel | From 5.15.82 (inc) to 5.15.100 (exc) |
| linux | linux_kernel | From 5.4.226 (inc) to 5.4.235 (exc) |
| linux | linux_kernel | From 6.0.12 (inc) to 6.1 (exc) |
| linux | linux_kernel | From 6.1.1 (inc) to 6.1.18 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-667 | The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors. |
