🛡️ UBUNTU-CVE-2023-53276
⚪ 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: ubifs: Free memory for tmpfile name When opening a ubifs tmpfile on an encrypted directory, function fscrypt_setup_filename allocates memory for the name that is to be stored in the directory entry, but after the name has been copied to the directory entry inode, the memory is not freed. When running kmemleak on it we see that it is registered as a leak. The report below is triggered by a simple program 'tmpfile' just opening a tmpfile: unreferenced object 0xffff88810178f380 (size 32): comm "tmpfile", pid 509, jiffies 4294934744 (age 1524.742s) backtrace: __kmem_cache_alloc_node __kmalloc fscrypt_setup_filename ubifs_tmpfile vfs_tmpfile path_openat Free this memory after it has been copied to the inode.

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 2025-09-16
Updated 2026-06-15
Modified 2026-06-08
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 5.15.0-79.86
linux-allwinner-5.19
linux-aws 5.15.0-1042.47
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15 5.15.0-1041.46~20.04.1
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4 5.4.0-1109.118~18.04.1
linux-aws-5.8
linux-aws-6.2
linux-aws-6.5
linux-aws-fips
linux-aws-hwe
linux-azure 5.15.0-1045.52
linux-azure-4.15
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15 5.15.0-1045.52~20.04.1
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4 5.4.0-1115.122~18.04.1
linux-azure-5.8
linux-azure-6.11
linux-azure-6.2
linux-azure-6.5
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.15
linux-azure-fde-5.19
linux-azure-fde-6.2
linux-azure-fips
linux-bluefield
linux-fips
linux-gcp 5.15.0-1039.47
linux-gcp-4.15
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15 5.15.0-1039.47~20.04.1
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4 5.4.0-1112.121~18.04.1
linux-gcp-5.8
linux-gcp-6.11
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-fips
linux-gke 5.15.0-1039.44
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 5.15.0-1025.30
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15 5.15.0-79.86~20.04.2
linux-hwe-5.19
linux-hwe-5.4 5.4.0-162.179~18.04.1
linux-hwe-5.8
linux-hwe-6.11
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-edge
linux-ibm 5.15.0-1035.38
linux-ibm-5.15 5.15.0-1036.39~20.04.1
linux-ibm-5.4 5.4.0-1056.61~18.04.1
linux-intel
linux-intel-5.13
linux-intel-iot-realtime 5.15.0-1036.38
linux-intel-iotg 5.15.0-1037.42
linux-intel-iotg-5.15 5.15.0-1037.42~20.04.1
linux-iot 5.4.0-1021.22
linux-kvm 5.15.0-1039.44
linux-lowlatency 5.15.0-79.88
linux-lowlatency-hwe-5.15 5.15.0-79.88~20.04.1
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.11
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lts-xenial
linux-nvidia 5.15.0-1030.30
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-tegra 5.15.0-1016.16
linux-nvidia-tegra-5.15 5.15.0-1016.16~20.04.1
linux-nvidia-tegra-igx 5.15.0-1002.2
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-6.5
linux-oem-6.8
linux-oracle 5.15.0-1040.46
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15 5.15.0-1040.46~20.04.1
linux-oracle-5.3
linux-oracle-5.4 5.4.0-1108.117~18.04.1
linux-oracle-5.8
linux-oracle-6.5
linux-raspi 5.15.0-1035.38
linux-raspi-5.4 5.4.0-1093.104~18.04.1
linux-raspi-realtime
linux-raspi2
linux-realtime
linux-riscv
linux-riscv-5.11
linux-riscv-5.15 5.15.0-1038.42~20.04.2
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx-zynqmp 5.15.0-1025.29

References

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