Red Hat Security Advisory: kernel security update
Red Hat has issued a security advisory for multiple vulnerabilities in the Linux kernel packages included in Red Hat Enterprise Linux 10 and related products. The update addresses several issues including use-after-free, double-free, overflow, and out-of-bounds errors in various kernel subsystems such as Bluetooth, exFAT, KEYS, SMB client, iomap, and IPv6 networking. These vulnerabilities have been assigned CVEs and are rated with a high security impact. A system reboot is required after applying the update to ensure the fixes take effect.
AI Analysis
Technical Summary
This advisory covers multiple security fixes in the Linux kernel packages for Red Hat Enterprise Linux 10 and related builds. The addressed vulnerabilities include CVE-2026-53073 (Bluetooth: clearing HCI_UART_PROTO_INIT on error), CVE-2026-63808 (exfat: potential use-after-free in exfat_find_dir_entry), CVE-2026-63824 (KEYS: overflow in keyctl_pkey_params_get_2), CVE-2026-64387 (SMB client: query directory replay double-free), CVE-2026-68145 (iomap: out-of-bounds bitmap_set with zero-length range), and CVE-2026-74581 (IPv6: use-after-free in fib6_rule_suppress). These vulnerabilities affect core kernel components and could impact system stability and security. Red Hat recommends prompt application of the update and rebooting affected systems.
Potential Impact
The vulnerabilities affect critical kernel components, potentially leading to memory corruption issues such as use-after-free, double-free, and overflow conditions. These could be exploited to cause system crashes or potentially escalate privileges or execute arbitrary code, although specific exploitation details are not provided. The advisory rates the overall impact as Important (high severity).
Mitigation Recommendations
Red Hat has released an official security update for the Linux kernel packages addressing these vulnerabilities. Users should apply the update promptly following Red Hat's guidance at https://access.redhat.com/articles/11258 and reboot their systems to ensure the fixes are active. Red Hat treats all kernel errata as security-relevant and strongly advises against delaying updates.
Red Hat Security Advisory: kernel security update
Description
Red Hat has issued a security advisory for multiple vulnerabilities in the Linux kernel packages included in Red Hat Enterprise Linux 10 and related products. The update addresses several issues including use-after-free, double-free, overflow, and out-of-bounds errors in various kernel subsystems such as Bluetooth, exFAT, KEYS, SMB client, iomap, and IPv6 networking. These vulnerabilities have been assigned CVEs and are rated with a high security impact. A system reboot is required after applying the update to ensure the fixes take effect.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers multiple security fixes in the Linux kernel packages for Red Hat Enterprise Linux 10 and related builds. The addressed vulnerabilities include CVE-2026-53073 (Bluetooth: clearing HCI_UART_PROTO_INIT on error), CVE-2026-63808 (exfat: potential use-after-free in exfat_find_dir_entry), CVE-2026-63824 (KEYS: overflow in keyctl_pkey_params_get_2), CVE-2026-64387 (SMB client: query directory replay double-free), CVE-2026-68145 (iomap: out-of-bounds bitmap_set with zero-length range), and CVE-2026-74581 (IPv6: use-after-free in fib6_rule_suppress). These vulnerabilities affect core kernel components and could impact system stability and security. Red Hat recommends prompt application of the update and rebooting affected systems.
Potential Impact
The vulnerabilities affect critical kernel components, potentially leading to memory corruption issues such as use-after-free, double-free, and overflow conditions. These could be exploited to cause system crashes or potentially escalate privileges or execute arbitrary code, although specific exploitation details are not provided. The advisory rates the overall impact as Important (high severity).
Mitigation Recommendations
Red Hat has released an official security update for the Linux kernel packages addressing these vulnerabilities. Users should apply the update promptly following Red Hat's guidance at https://access.redhat.com/articles/11258 and reboot their systems to ensure the fixes are active. Red Hat treats all kernel errata as security-relevant and strongly advises against delaying updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-wq7c-9cj9-76jg
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-53073"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a5fcf481010f89cc21529c2
Added to database: 07/21/2026, 19:58:00 UTC
Last enriched: 09/12/2026, 10:17:39 UTC
Last updated: 09/13/2026, 22:47:39 UTC
Views: 28
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