Threats Tagged 'cve-2026-46176'

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() mlx5_ib_dev_res_srq_init() allocates two SRQs, s0 and s1. When ib_create_srq() fails for s1, the error branch destroys s0 but falls through and unconditionally assigns the freed s0 and the ERR_PTR s1 to devr->s0 and devr->s1. This leads to several problems: the lock-free fast path checks "if (devr->s1) return 0;" and treats the ERR_PTR as already initialised; users in mlx5_ib_create_qp() dereference the freed SRQ or ERR_PTR via to_msrq(devr->s0)->msrq.srqn; and mlx5_ib_dev_res_cleanup() dereferences the ERR_PTR and double-frees s0 on teardown. Fix by adding the same `goto unlock` in the s1 failure path.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This Red Hat security advisory addresses multiple vulnerabilities and bugs in the Linux kernel packages for Red Hat Enterprise Linux 9.6 Extended Update Support and related products. The update includes fixes for 18 CVEs affecting various kernel subsystems such as netfilter, ALSA, RDMA, TCP, SCTP, and others. The advisory rates the security impact as Important and covers issues like use-after-free, double free, race conditions, permission checking flaws, and validation errors. The update also includes bug fixes and enhancements unrelated to security. Systems must be rebooted after applying the update for changes to take effect.