Yüksek CVSS 7.8

CVE-2026-45852: Linux Kernel: güvenlik açığı

Yayın: 27 Mayıs 2026 17:16 · Güncelleme: 6 Kasım 2026 10:19

Açıklama (NVD)

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix double free in rxe_srq_from_init In rxe_srq_from_init(), the queue pointer 'q' is assigned to 'srq->rq.queue' before copying the SRQ number to user space. If copy_to_user() fails, the function calls rxe_queue_cleanup() to free the queue, but leaves the now-invalid pointer in 'srq->rq.queue'. The caller of rxe_srq_from_init() (rxe_create_srq) eventually calls rxe_srq_cleanup() upon receiving the error, which triggers a second rxe_queue_cleanup() on the same memory, leading to a double free. The call trace looks like this: kmem_cache_free+0x.../0x... rxe_queue_cleanup+0x1a/0x30 [rdma_rxe] rxe_srq_cleanup+0x42/0x60 [rdma_rxe] rxe_elem_release+0x31/0x70 [rdma_rxe] rxe_create_srq+0x12b/0x1a0 [rdma_rxe] ib_create_srq_user+0x9a/0x150 [ib_core] Fix this by moving 'srq->rq.queue = q' after copy_to_user.

Özet bilgiler

Ürün: Linux Linux Kernel
CVSS v3.1: 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: %0,20 (yüzdelik 10)
CWE: CWE-415
Yama: Mevcut

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
linux-linux-kernel	4.19.86	—	5.10.259
linux-linux-kernel	5.11	—	5.15.210
linux-linux-kernel	5.16	—	6.1.176
linux-linux-kernel	6.2	—	6.6.128
linux-linux-kernel	6.7	—	6.12.75
linux-linux-kernel	6.13	—	6.18.14
linux-linux-kernel	6.19	—	6.19.4

Kaynaklar

Uygulamada aç Tüm CVE kayıtları