Red Hat Security Advisory: kernel security update
Affects Linux kernelSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · fixed in Red Hat package updates : update Linux kernel when convenient.
Data as of 30 Oct 2026, 04:47 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- Patch
- Available – fixed in 9.6
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
Red Hat has released updated kernel packages for Red Hat Enterprise Linux 9.6 Extended Update Support that fix these vulnerabilities. Users should apply the available kernel updates promptly and reboot their systems to ensure the fixes take effect. Detailed update instructions are available in the Red Hat advisory. No additional mitigation steps are indicated.
Description
This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 9.6 Extended Update Support. The issues include a synchronous access flaw in the SCSI mpi3mr driver (CVE-2025-37861), a use-after-free vulnerability in the io_uring subsystem that could lead to local privilege escalation, information disclosure, or denial of service (CVE-2025-38106), and a memory corruption vulnerability in Squashfs due to incorrect block size calculation (CVE-2025-38415). These vulnerabilities have been rated with moderate severity by Red Hat. The update requires a system reboot to take effect.
References
- access.redhat.com/errata/RHSA-2026:3088 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2365256 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2376077 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2383404 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_3088.json (opens in a new tab)