IT

Tracker / CVE-2025-71084

CVE-2025-71084

Medium 5.5

In the Linux kernel, the following vulnerability has been resolved: RDMA/cm: Fix leaking the multicast GID table reference If the CM ID is destroyed while the CM event for multicast creating is still queued the cancel_work_sync() will prevent the work from running which also prevents destroying the ah_attr. This leaks a refcount and triggers a WARN: GID entry ref leak for dev syz1 index 2 ref=573 WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline] WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886 Destroy the ah_attr after canceling the work, it is safe to call this twice.

Affected products and versions

linux linux_kernel
linux linux_kernel · 5.10.20 → 5.10.248
linux linux_kernel · 5.11.3 → 5.12
linux linux_kernel · 5.12.1 → 5.15.198
linux linux_kernel · 5.16 → 6.1.160
linux linux_kernel · 6.13 → 6.18.4
linux linux_kernel · 6.2 → 6.6.120
linux linux_kernel · 6.7 → 6.12.64

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References