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CVE-2025-39817 efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare

🗓️ 16 Sep 2025 13:00:17Reported by GoogleType 
osv
 osv🔗 osv.dev👁 2 Views

CVE-2025-39817: efivarfs fixes slab-out-of-bounds in efivarfs_d_compare by validating guid before compare.

Related
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Vulnerabilities in kernel affects IBM Netezza Appliance
23 Apr 202607:29
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in kernel affects IBM Netezza Appliance
23 Apr 202611:12
–ibm
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1186)
15 Sep 202500:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2025-1208)
30 Sep 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2025-104 (ALASKERNEL-5.10-2025-104)
16 Sep 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-089 (ALASKERNEL-5.15-2025-089)
16 Sep 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-109 (ALASKERNEL-5.4-2025-109)
16 Sep 202500:00
–nessus
Tenable Nessus		AlmaLinux 9 : kernel (ALSA-2025:18281)
22 Oct 202500:00
–nessus
Tenable Nessus		AlmaLinux 10 : kernel (ALSA-2025:18318)
22 Oct 202500:00
–nessus
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2025:19102)
28 Oct 202500:00
–nessus
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24 Apr 2026 18:29Current
6Medium risk
Vulners AI Score6
CVSS 3.17.1
EPSS0.00152
SSVC
efivarfskernelfilename lengthcomparison fix
2