Red Hat Security Advisory: kernel security update
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.
AI Analysis
Technical Summary
The advisory covers four kernel vulnerabilities: CVE-2026-43279 adds a sanity check to prevent out-of-bounds writes in ALSA usb-audio silencing; CVE-2026-46090 fixes a use-after-free in ALSA aloop during format-change stop; CVE-2026-46189 resolves a double free error on pvrdma_alloc_ucontext() error path in RDMA vmw_pvrdma; and CVE-2026-46176 corrects an error path fall-through in mlx5_ib_dev_res_srq_init() in RDMA mlx5. These issues affect the Linux kernel core in Red Hat Enterprise Linux 10 and related CodeReady Linux Builder variants. The advisory references Red Hat's errata RHSA-2026:33685 and instructs users to apply the update and reboot.
Potential Impact
The vulnerabilities could lead to memory corruption issues such as out-of-bounds writes, use-after-free, and double free conditions in kernel subsystems related to audio and RDMA. These flaws may cause system instability or potentially allow escalation of privileges or denial of service. Red Hat rates the overall security impact as Important (high severity). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released an updated kernel package that addresses these vulnerabilities. Users of Red Hat Enterprise Linux 10 and related CodeReady Linux Builder products should apply the update referenced in RHSA-2026:33685 promptly. A system reboot is required for the update to take effect. No additional mitigations are indicated by the vendor advisory.
Red Hat Security Advisory: kernel security update
Description
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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The advisory covers four kernel vulnerabilities: CVE-2026-43279 adds a sanity check to prevent out-of-bounds writes in ALSA usb-audio silencing; CVE-2026-46090 fixes a use-after-free in ALSA aloop during format-change stop; CVE-2026-46189 resolves a double free error on pvrdma_alloc_ucontext() error path in RDMA vmw_pvrdma; and CVE-2026-46176 corrects an error path fall-through in mlx5_ib_dev_res_srq_init() in RDMA mlx5. These issues affect the Linux kernel core in Red Hat Enterprise Linux 10 and related CodeReady Linux Builder variants. The advisory references Red Hat's errata RHSA-2026:33685 and instructs users to apply the update and reboot.
Potential Impact
The vulnerabilities could lead to memory corruption issues such as out-of-bounds writes, use-after-free, and double free conditions in kernel subsystems related to audio and RDMA. These flaws may cause system instability or potentially allow escalation of privileges or denial of service. Red Hat rates the overall security impact as Important (high severity). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released an updated kernel package that addresses these vulnerabilities. Users of Red Hat Enterprise Linux 10 and related CodeReady Linux Builder products should apply the update referenced in RHSA-2026:33685 promptly. A system reboot is required for the update to take effect. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:33685
- Cve Count
- 4
- Additional Cves
- ["CVE-2026-46090","CVE-2026-46176","CVE-2026-46189"]
- Cvss Version
- null
Threat ID: 6a46ed1527e9c79719447090
Added to database: 07/02/2026, 22:58:29 UTC
Last enriched: 07/10/2026, 11:54:39 UTC
Last updated: 08/15/2026, 00:41:12 UTC
Views: 62
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