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Vulnerability · Published May 9, 2025 · Assigned by Linux

CVE-2025-37844cifs: avoid NULL pointer dereference in dbg call

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 0.3% (higher than 23% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 77.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: cifs: avoid NULL pointer dereference in dbg call cifs_server_dbg() implies server to be non-NULL so move call under condition to avoid NULL pointer dereference. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.135-1DEBIAN-CVE-2025-37844
Debian:13linux6.12.25-1DEBIAN-CVE-2025-37844
Debian:14linux6.12.25-1DEBIAN-CVE-2025-37844
Ubuntu:22.04:LTSlinux5.15.0-144.157UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux6.8.0-100.100UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-aws5.15.0-1088.95UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-aws6.8.0-1046.49UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure5.15.0-1094.103UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-azure6.8.0-1046.52UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1094.103.1UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1046.53UBUNTU-CVE-2025-37844
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1046.53~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-gcp5.15.0-1087.96UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-gcp6.8.0-1047.50UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1047.50~22.04.2UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-gke5.15.0-1085.91UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-gke6.8.0-1043.48UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1070.78UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1030.33UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-ibm5.15.0-1080.83UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-ibm6.8.0-1044.44UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1044.44~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1083.89UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-kvm5.15.0-1084.89UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-144.157UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-100.100.1UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-100.100.1~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1082.83UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1046.49UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1046.49~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1046.49.1UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1041.41UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1030.30UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-oracle5.15.0-1085.91UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-oracle6.8.0-1043.44UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1043.44~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-raspi5.15.0-1083.86UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-raspi6.8.0-1047.51UBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-100.100~22.04.1UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-37844
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1023.24UBUNTU-CVE-2025-37844
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1052.56UBUNTU-CVE-2025-37844

Affected products (as reported)

VendorProductVersions
Linux Linux e79b0332ae06b4895dcecddf4bbc5d3917e9383c – before ba3ce6c60cd5db258687dfeba9fc608f5e7cadf3e79b0332ae06b4895dcecddf4bbc5d3917e9383c – before 9c9000cb91b986eb7f75835340c67857ab97c09be79b0332ae06b4895dcecddf4bbc5d3917e9383c – before b2a1833e1c63e2585867ebeaf4dd41494dcede4be79b0332ae06b4895dcecddf4bbc5d3917e9383c – before 864ba5c651b03830f36f0906c21af05b15c1aaa6e79b0332ae06b4895dcecddf4bbc5d3917e9383c – before e0717385f5c51e290c2cd2ad4699a778316b5132e79b0332ae06b4895dcecddf4bbc5d3917e9383c – before 20048e658652e731f5cadf4a695925e570ca0ff9e79b0332ae06b4895dcecddf4bbc5d3917e9383c – before 6c14ee6af8f1f188b668afd6d003f7516a507b08e79b0332ae06b4895dcecddf4bbc5d3917e9383c – before b4885bd5935bb26f0a414ad55679a372e53f9b9b
Linux Linux 5.7

References