CVE-2026-72383
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2026-08-15
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: sctp: fix addr_wq_timer race in sctp_free_addr_wq() sctp_free_addr_wq() previously removed addr_wq_timer using timer_delete() while holding addr_wq_lock. However, timer_delete() does not guarantee that a currently running timer handler has completed. This allows a race with sctp_addr_wq_timeout_handler(), where the handler may still run after addr_waitq has been freed, acquire addr_wq_lock, and access freed memory, leading to a use-after-free. Fix this by calling timer_shutdown_sync() before taking addr_wq_lock. This guarantees that any in-flight timer handler has finished and prevents the timer from being re-armed during teardown, making subsequent cleanup safe.
Affected Software (7)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 4db67e808640e3934d82ce61ee8e2e89fd877ba8 < fb6117713abef8646fdbf58256532451bcf26c47 |
| Linux | Linux | 4db67e808640e3934d82ce61ee8e2e89fd877ba8 < 5098308ad72f83f3b1a48c247dddab1695114bae |
| Linux | Linux | 4db67e808640e3934d82ce61ee8e2e89fd877ba8 < d49eff15261dd62e4fa3a316c26cb1f537a60464 |
| Linux | Linux | 4db67e808640e3934d82ce61ee8e2e89fd877ba8 < a8323fb2ab6cd6978f359daeed6688e0cadf32ba |
| Linux | Linux | 4db67e808640e3934d82ce61ee8e2e89fd877ba8 < c3e5cac47519d77ad36b9c03a1df1536aaa0c4a1 |
| Linux | Linux | 4db67e808640e3934d82ce61ee8e2e89fd877ba8 < 976c19de0f22a857ba0112f39635f8fd7a257568 |
| Linux | Linux | 3.7 |