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kernel: exfat: fix potential use-after-free in exfat_find_dir_entry()

🗓️ 04 Sep 2026 02:32:58Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Use-after-free in Linux kernel exFAT exfat_find_dir_entry() enables DoS via crafted image.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB		CVE-2026-63808
19 Jul 202612:02
–attackerkb
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1969)
20 Jul 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-2014)
4 Aug 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-2032)
4 Aug 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-126 (ALASKERNEL-5.10-2026-126)
20 Jul 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2026-111 (ALASKERNEL-5.15-2026-111)
28 Jul 202600:00
–nessus
nessus
Tenable Nessus		Debian dla-4700 : linux-config-6.1 - security update
26 Jul 202600:00
–nessus
nessus
Tenable Nessus		Debian dla-4717 : ata-modules-5.10.0-43-armmp-di - security update
5 Aug 202600:00
–nessus
nessus
Tenable Nessus		Photon OS 5.0: Linux PHSA-2026-5.0-0916
9 Jul 202600:00
–nessus
nessus
Tenable Nessus		Photon OS 5.0: Linux PHSA-2026-5.0-0926
24 Jul 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64kernel5.14.0-687.44.1.el9_8kernel-5.14.0-687.44.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lekernel5.14.0-687.44.1.el9_8kernel-5.14.0-687.44.1.el9_8.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xkernel5.14.0-687.44.1.el9_8kernel-5.14.0-687.44.1.el9_8.s390x.rpm
Red Hat Enterprise Linux9.8x86_64kernel5.14.0-687.44.1.el9_8kernel-5.14.0-687.44.1.el9_8.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k5.14.0-687.44.1.el9_8kernel-64k-5.14.0-687.44.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-core5.14.0-687.44.1.el9_8kernel-64k-core-5.14.0-687.44.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-debug5.14.0-687.44.1.el9_8kernel-64k-debug-5.14.0-687.44.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-debug-core5.14.0-687.44.1.el9_8kernel-64k-debug-core-5.14.0-687.44.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-debug-debuginfo5.14.0-687.44.1.el9_8kernel-64k-debug-debuginfo-5.14.0-687.44.1.el9_8.aarch64.rpm
Red Hat Enterprise Linux9.8aarch64kernel-64k-debug-devel5.14.0-687.44.1.el9_8kernel-64k-debug-devel-5.14.0-687.44.1.el9_8.aarch64.rpm
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04 Sep 2026 08:02Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.19.8
EPSS0.00527
CWE-825
Linux kerneluse-after-freeexFAT filesystemexfat_find_dir_entrydenial of servicelocal attack
4