🛡️ UBUNTU-CVE-2025-38321
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: smb: Log an error when close_all_cached_dirs fails Under low-memory conditions, close_all_cached_dirs() can't move the dentries to a separate list to dput() them once the locks are dropped. This will result in a "Dentry still in use" error, so add an error message that makes it clear this is what happened: [ 495.281119] CIFS: VFS: \\otters.example.com\share Out of memory while dropping dentries [ 495.281595] ------------[ cut here ]------------ [ 495.281887] BUG: Dentry ffff888115531138{i=78,n=/} still in use (2) [unmount of cifs cifs] [ 495.282391] WARNING: CPU: 1 PID: 2329 at fs/dcache.c:1536 umount_check+0xc8/0xf0 Also, bail out of looping through all tcons as soon as a single allocation fails, since we're already in trouble, and kmalloc() attempts for subseqeuent tcons are likely to fail just like the first one did.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-07-10
Updated 2026-06-15
Modified 2026-06-08
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 6.8.0-100.100
linux-allwinner-5.19
linux-aws 6.8.0-1046.49
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4
linux-aws-5.8
linux-aws-6.14 6.14.0-1015.15~24.04.1
linux-aws-6.2
linux-aws-6.5
linux-aws-6.8 6.8.0-1046.49~22.04.1
linux-aws-fips 6.8.0-1046.49+fips1
linux-aws-hwe
linux-azure 6.8.0-1046.52
linux-azure-4.15
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4
linux-azure-5.8
linux-azure-6.11
linux-azure-6.14 6.14.0-1014.14~24.04.1
linux-azure-6.2
linux-azure-6.5
linux-azure-6.8 6.8.0-1051.57~22.04.1
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.15
linux-azure-fde-5.19
linux-azure-fde-6.17
linux-azure-fde-6.2
linux-azure-fde-6.8
linux-azure-fips 6.8.0-1046.52+fips1
linux-azure-nvidia
linux-azure-nvidia-6.14 6.14.0-1007.7
linux-bluefield
linux-fips 6.8.0-100.100+fips1
linux-gcp 6.8.0-1047.50
linux-gcp-4.15
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4
linux-gcp-5.8
linux-gcp-6.11
linux-gcp-6.14 6.14.0-1018.19~24.04.1
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-6.8 6.8.0-1047.50~22.04.2
linux-gcp-fips 6.8.0-1047.50+fips1
linux-gke 6.8.0-1043.48
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 6.8.0-1030.33
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15
linux-hwe-5.19
linux-hwe-5.4
linux-hwe-5.8
linux-hwe-6.11
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 6.8.0-100.100~22.04.1
linux-hwe-edge
linux-ibm 6.8.0-1044.44
linux-ibm-5.15
linux-ibm-5.4
linux-ibm-6.8 6.8.0-1044.44~22.04.1
linux-intel
linux-intel-5.13
linux-intel-iot-realtime
linux-intel-iotg
linux-intel-iotg-5.15
linux-iot
linux-kvm
linux-lowlatency 6.8.0-100.100.1
linux-lowlatency-hwe-5.15
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.11
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 6.8.0-100.100.1~22.04.1
linux-lts-xenial
linux-nvidia 6.8.0-1046.49
linux-nvidia-6.11
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-6.8 6.8.0-1046.49~22.04.1
linux-nvidia-lowlatency 6.8.0-1046.49.1
linux-nvidia-tegra 6.8.0-1020.20
linux-nvidia-tegra-5.15
linux-nvidia-tegra-igx
linux-oem
linux-oem-5.10
linux-oem-5.13
linux-oem-5.14
linux-oem-5.17
linux-oem-5.6
linux-oem-6.0
linux-oem-6.1
linux-oem-6.11
linux-oem-6.14 6.14.0-1014.14
linux-oem-6.5
linux-oem-6.8
linux-oracle 6.8.0-1043.44
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15
linux-oracle-5.3
linux-oracle-5.4
linux-oracle-5.8
linux-oracle-6.14 6.14.0-1015.15~24.04.1
linux-oracle-6.5
linux-oracle-6.8 6.8.0-1043.44~22.04.1
linux-raspi 6.8.0-1047.51
linux-raspi-5.4
linux-raspi-realtime 6.8.0-2037.38
linux-raspi2
linux-realtime 6.8.1-1041.42
linux-realtime-6.14 6.14.0-1014.14~24.04.1
linux-realtime-6.8 6.8.1-1041.42~22.04.1
linux-riscv
linux-riscv-5.11
linux-riscv-5.15
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.14 6.14.0-34.34.1~24.04.1
linux-riscv-6.5
linux-riscv-6.8 6.8.0-100.100~22.04.1
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx 6.8.0-1023.24
linux-xilinx-zynqmp

References

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