Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() Sashiko points out the radix_tree itself is RCU safe, but nothing ever frees the mlx4_srq struct with RCU, and it isn't even accessed within the RCU critical section. It also will crash if an event is delivered before the srq object is finished initializing. Use the spinlock since it isn't easy to make RCU work, use refcount_inc_not_zero() to protect against partially initialized objects, and order the refcount_set() to be after the srq is fully initialized.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 1 product
🚨 HIGH Severity: CVE-2026-46181 (CVSS 7.8) Linux kernel RDMA/mlx4 RCU misuse flaw enables local privilege escalation. Patch immediately. Affects: Linux kernel RDMA subsystem #CVE #Vulnerability #PatchNow https://t.co/CyNhxXMRnp
Post summary
The tweet announces CVE-2026-46181, a local privilege escalation flaw in the Linux kernel RDMA subsystem, and urges users to apply the available patch immediately.
3 of 3 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | linux | linux_kernel | - | - | - |
| OS | linux | linux_kernel | 7.1 | - | - |
| OS | linux | linux_kernel | 7.1 | - | - |