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Vulnerability · Published Feb 14, 2026 · Assigned by Linux

CVE-2025-71223smb/server: fix refcount leak in smb2_open()

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 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.1%top 96.3% 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: smb/server: fix refcount leak in smb2_open() When ksmbd_vfs_getattr() fails, the reference count of ksmbd_file must be released.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.73-1DEBIAN-CVE-2025-71223
Debian:13linux6.12.73-1DSA-6141-1
Debian:14linux6.18.10-1DEBIAN-CVE-2025-71223
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-71223
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-71223
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-71223
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2025-71223
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-71223
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-71223

Affected products (as reported)

VendorProductVersions
Linux Linux 8df4bcdb0a4232192b2445256c39b787d58ef14d – before 2456fde2b137703328f1695f60c68fe488d17e36c8efcc786146a951091588e5fa7e3c754850cb3c – before 39ca11ff158c98fb092176f06047628c54bcf7a1c8efcc786146a951091588e5fa7e3c754850cb3c – before 4665e52bde3b1f8f442895ce7d88fa62a43e48c4c8efcc786146a951091588e5fa7e3c754850cb3c – before f416c556997aa56ec4384c6b6efd6a0e6ac70aa76.6.32 – before 6.6.124
Linux Linux 6.9

References