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: Kernel: Double free vulnerability in exFAT filesystem can lead to denial of service (CVE-2025-38206) * kernel: drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies (CVE-2025-40096) * kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match() (CVE-2025-40168) * kernel: mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats (CVE-2025-68800) 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 Red Hat security advisory RHSA-2026:3275 addresses four kernel vulnerabilities affecting Red Hat Enterprise Linux 10 and associated variants. CVE-2025-38206 is a double free vulnerability in the exFAT filesystem that can cause denial of service. CVE-2025-40096 fixes a potential double free in drm_sched_job_add_resv_dependencies. CVE-2025-40168 addresses the use of __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match() to correct socket destination handling. CVE-2025-68800 fixes a use-after-free bug in mlxsw spectrum_mr when updating multicast route statistics. These vulnerabilities are addressed by updated kernel packages provided by Red Hat. The advisory instructs users to apply the update and reboot the system for the fix to take effect.
Potential Impact
The vulnerabilities can lead to denial of service conditions or memory corruption due to double free or use-after-free bugs in kernel components. This may affect system stability and reliability but does not explicitly mention privilege escalation or remote code execution. The overall security impact is rated as moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated kernel packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 10 and related products should apply the kernel update provided in advisory RHSA-2026:3275. A system reboot is required for the update to take effect. No additional mitigation steps are indicated beyond applying the official update.
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: Kernel: Double free vulnerability in exFAT filesystem can lead to denial of service (CVE-2025-38206) * kernel: drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies (CVE-2025-40096) * kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match() (CVE-2025-40168) * kernel: mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats (CVE-2025-68800) 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
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Red Hat security advisory RHSA-2026:3275 addresses four kernel vulnerabilities affecting Red Hat Enterprise Linux 10 and associated variants. CVE-2025-38206 is a double free vulnerability in the exFAT filesystem that can cause denial of service. CVE-2025-40096 fixes a potential double free in drm_sched_job_add_resv_dependencies. CVE-2025-40168 addresses the use of __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match() to correct socket destination handling. CVE-2025-68800 fixes a use-after-free bug in mlxsw spectrum_mr when updating multicast route statistics. These vulnerabilities are addressed by updated kernel packages provided by Red Hat. The advisory instructs users to apply the update and reboot the system for the fix to take effect.
Potential Impact
The vulnerabilities can lead to denial of service conditions or memory corruption due to double free or use-after-free bugs in kernel components. This may affect system stability and reliability but does not explicitly mention privilege escalation or remote code execution. The overall security impact is rated as moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated kernel packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 10 and related products should apply the kernel update provided in advisory RHSA-2026:3275. A system reboot is required for the update to take effect. No additional mitigation steps are indicated beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3275
- Cve Count
- 4
- Additional Cves
- ["CVE-2025-40096","CVE-2025-40168","CVE-2025-68800"]
- Cvss Version
- null
Threat ID: 6a32cf499f87a2db092a6672
Added to database: 06/17/2026, 16:46:01 UTC
Last enriched: 06/25/2026, 23:19:26 UTC
Last updated: 08/01/2026, 07:17:56 UTC
Views: 70
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