CVE-2023-53391 — Missing Release of Resource after Effective Lifetime in Linux

CWE-772 — Missing Release of Resource after Effective Lifetime6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.84%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 18

Description

In the Linux kernel, the following vulnerability has been resolved: shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs As the ramfs-based tmpfs uses ramfs_init_fs_context() for the init_fs_context method, which allocates fc->s_fs_info, use ramfs_kill_sb() to free it and avoid a memory leak.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel2.6.30 — 5.10.188+3
▶Debianlinux/linux_kernel< 5.10.191-1+3
▶CVEListV5linux/linuxc3b1b1cbf002e65a3cabd479e68b5f35886a26db — 5fada375113767b3b57f1b04f7a4fe64ffaa626f+5
▶debiandebian/linux< linux 6.1.52-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2023-53391: In the Linux kernel, the following vulnerability has been resolved: shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs As the ramfs-ba↗2025-09-18
▶
GHSA
GHSA-mxch-j2wj-hmc8: In the Linux kernel, the following vulnerability has been resolved: shmem: use ramfs_kill_sb() for kill_sb method of ramfs-based tmpfs As the ramfs-↗2025-09-18
▶

📋Vendor Advisories

2
Red Hat
kernel: Linux kernel: Memory leak in shmem's ramfs-based tmpfs leads to denial of service↗2025-09-18
▶
Debian
CVE-2023-53391: linux - In the Linux kernel, the following vulnerability has been resolved: shmem: use ...↗2023
▶

💬Community

1
Bugzilla
CVE-2023-53391 kernel: Linux kernel: Memory leak in shmem's ramfs-based tmpfs leads to denial of service↗2025-09-18
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CVE-2023-53391 — Linux vulnerability | cvebase