Log in Start free

Vulnerability · Published Dec 24, 2025 · Assigned by Linux

CVE-2025-68351exfat: fix refcount leak in exfat_find

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 93.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: exfat: fix refcount leak in exfat_find Fix refcount leaks in `exfat_find` related to `exfat_get_dentry_set`. Function `exfat_get_dentry_set` would increase the reference counter of `es->bh` on success. Therefore, `exfat_put_dentry_set` must be called after `exfat_get_dentry_set` to ensure refcount consistency. This patch relocate two checks to avoid possible leaks.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.69-1DEBIAN-CVE-2025-68351
Debian:13linux6.12.69-1DSA-6126-1
Debian:14linux6.18.3-1DEBIAN-CVE-2025-68351
Ubuntu:24.04:LTSlinux6.8.0-117.117UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux6.8.0-117.117USN-8278-1
Ubuntu:25.10linux6.17.0-22.22UBUNTU-CVE-2025-68351
Ubuntu:25.10linux6.17.0-22.22USN-8177-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-aws6.8.0-1055.58USN-8278-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1055.58UBUNTU-CVE-2025-68351
Ubuntu:25.10linux-aws6.17.0-1012.12UBUNTU-CVE-2025-68351
Ubuntu:25.10linux-aws6.17.0-1012.12USN-8183-2
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1012.12~24.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-aws-6.176.17.0-1012.12~24.04.1USN-8183-2
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1057.60~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure6.8.0-1056.62UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure6.8.0-1056.62USN-8278-2
Ubuntu:25.10linux-azure6.17.0-1013.13USN-8245-1
Ubuntu:25.10linux-azure6.17.0-1013.13UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1013.13~24.04.1USN-8245-1
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1013.13~24.04.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1USN-8440-1
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2025-68351
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gcp6.8.0-1058.61UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gcp6.8.0-1058.61USN-8278-1
Ubuntu:25.10linux-gcp6.17.0-1012.12USN-8183-1
Ubuntu:25.10linux-gcp6.17.0-1012.12UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1012.12~24.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1012.12~24.04.1USN-8183-1
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1060.63~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gke6.8.0-1054.60UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gke6.8.0-1054.60USN-8278-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1041.44UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1041.44USN-8278-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-22.22~24.04.1USN-8183-2
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-22.22~24.04.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-124.124~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-ibm6.8.0-1055.56UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-ibm6.8.0-1055.56USN-8278-1
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1055.56~22.04.1USN-8278-1
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1055.56~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-117.117.1USN-8278-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-117.117.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-117.117.1~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-117.117.1~22.04.1USN-8278-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1054.57UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1054.57USN-8289-1
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1018.18UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1054.57~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1054.57~22.04.1USN-8289-2
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1054.57.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1054.57.1USN-8289-1
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1024.24UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1024.24USN-8296-2
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1020.20USN-8245-1
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1020.20UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-oracle6.8.0-1054.55UBUNTU-CVE-2025-68351
Ubuntu:25.10linux-oracle6.17.0-1011.11USN-8183-2
Ubuntu:25.10linux-oracle6.17.0-1011.11UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1011.11~24.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1011.11~24.04.1USN-8183-2
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1054.55~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-raspi6.8.0-1056.60USN-8278-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1056.60UBUNTU-CVE-2025-68351
Ubuntu:25.10linux-raspi6.17.0-1013.13UBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-68351
Ubuntu:25.10linux-realtime6.17.0-1010.11UBUNTU-CVE-2025-68351
Ubuntu:25.10linux-realtime6.17.0-1010.11USN-8177-1
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-68351
Ubuntu:25.10linux-riscv6.17.0-22.22.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-riscv-6.176.17.0-22.22.1~24.04.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-117.117~22.04.1UBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-68351
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-68351
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1032.33USN-8499-1
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1032.33UBUNTU-CVE-2025-68351

Affected products (as reported)

VendorProductVersions
Linux Linux 92075758782c5edb4c67d0da9e47586a624c22f7 – before fc9ce762525e73438d31b613f18bca92a4d3d57813940cef95491472760ca261b6713692ece9b946 – before d009ff8959d28d2a33aeb96a5f7e7161c421d78f13940cef95491472760ca261b6713692ece9b946 – before 9aee8de970f18c2aaaa348e3de86c38e2d956c1d0c8a1d2afd0dce0ea9257ab8c2271d8db6cb575d6c627bcc1896ba62ec793d0c00da74f3c93ce3ad6.12.23 – before 6.12.686.13.11 – before 6.14
Linux Linux 6.14

References