PT-2026-79719

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: Fix use-after-free in bpf iter tcp established batch reqsk queue hash req publishes a TCP NEW SYN RECV request sock onto the ehash chain, drops the bucket lock, and only afterwards sets rsk refcnt to 3. Lockless readers...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a requestsock leak in the sk lookup helper...

The vulnerability of the reqsk_queue_alloc() function in the Linux kernel-based TCP protocol implementation allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the reqskqueuealloc function in the net/core/requestsock.c module of the Linux kernel’s TCP protocol implementation is related to deficiencies in the serialization mechanism, leading to competitive access to resources. Exploiting this vulnerability could allow a remote attack...