Moderate: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation (CVE-2025-38415) * kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it (CVE-2025-38403) * kernel: Linux kernel: Data corruption and system instability due to improper io_uring/net buffer handling (CVE-2025-38730) * kernel: smb: client: let recv_done verify data_offset, data_length and remaining_data_length (CVE-2025-39933) * kernel: mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable() (CVE-2025-40133) * kernel: Linux kernel: Out-of-bounds write in fbdev can lead to privilege escalation, information disclosure, or denial of service. (CVE-2025-40304) * kernel: Linux kernel: Information disclosure and denial of service via out-of-bounds read in font glyph handling (CVE-2025-40322) * kernel: svcrdma: use rc_pageoff for memcpy byte offset (CVE-2025-68811) 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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Linux kernel: Memory corruption in Squashfs due to incorrect block size calculation (CVE-2025-38415) * kernel: vsock/vmci: Clear the vmci transport packet properly when initializing it (CVE-2025-38403) * kernel: Linux kernel: Data corruption and system instability due to improper io_uring/net buffer handling (CVE-2025-38730) * kernel: smb: client: let recv_done verify data_offset, data_length and remaining_data_length (CVE-2025-39933) * kernel: mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable() (CVE-2025-40133) * kernel: Linux kernel: Out-of-bounds write in fbdev can lead to privilege escalation, information disclosure, or denial of service. (CVE-2025-40304) * kernel: Linux kernel: Information disclosure and denial of service via out-of-bounds read in font glyph handling (CVE-2025-40322) * kernel: svcrdma: use rc_pageoff for memcpy byte offset (CVE-2025-68811) 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.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2026:2282
- https://access.redhat.com/security/cve/CVE-2025-38403
- https://access.redhat.com/security/cve/CVE-2025-38415
- https://access.redhat.com/security/cve/CVE-2025-38730
- https://access.redhat.com/security/cve/CVE-2025-39933
- https://access.redhat.com/security/cve/CVE-2025-40133
- https://access.redhat.com/security/cve/CVE-2025-40304
- https://access.redhat.com/security/cve/CVE-2025-40322
- https://access.redhat.com/security/cve/CVE-2025-68811
- https://bugzilla.redhat.com/2383404
- https://bugzilla.redhat.com/2383421
- https://bugzilla.redhat.com/2393191
- https://bugzilla.redhat.com/2401432
- https://bugzilla.redhat.com/2414465
- https://bugzilla.redhat.com/2419870
- https://bugzilla.redhat.com/2419902
- https://bugzilla.redhat.com/2429116
- https://errata.almalinux.org/10/ALSA-2026-2282.html