TI-2023-29686 Aliases CVE-2023-53396 GHSA-427x-59vx-vjwq

ubifs: Fix memory leak in do_rename

LOW 24CWE-401Published 2025-09-18 · Updated 2026-05-23

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-401.

Summary

In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memory leak in do_rename If renaming a file in an encrypted directory, function fscrypt_setup_filename allocates memory for a file name. This name is never used, and before returning to the caller the memory for it 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 'rename' that renames a file in an encrypted directory: unreferenced object 0xffff888101502840 (size 32): comm "rename", pid 9404, jiffies 4302582475 (age 435.735s) backtrace: __kmem_cache_alloc_node __kmalloc fscrypt_setup_filename do_rename ubifs_rename vfs_rename do_renameat2 To fix this we can remove the call to fscrypt_setup_filename as it's not needed.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00151 4th percentileScored 2026-11-07

Fix Partial Linux (Linux): 5.15.112, 5.17, 5.18 +4Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	5.15.33 to before 5.15.112; 5.16.19 to before 5.17; 5.17.2 to before 5.18	5.15.112, 5.17, 5.18	Patch available	CNA
Linux	Linux	5.18 and later	5.15.112, 6.1.28, 6.2.15, 6.3.2, 6.4	Patch available	CNA

Linux VendorLinux Affected 5.15.33 to before 5.15.112; 5.16.19 to before 5.17; 5.17.2 to before 5.18 Fixed in 5.15.112, 5.17, 5.18 Patch available CNA
Linux VendorLinux Affected 5.18 and later Fixed in 5.15.112, 6.1.28, 6.2.15, 6.3.2, 6.4 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	5.15.33 to before 5.15.112; 5.16.19 to before 5.17; 5.17.2 to before 6.1.28; 6.2 to before 6.2.15; 6.3 to before 6.3.2	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15.33 to before 5.15.112; 5.16.19 to before 5.17; 5.17.2 to before 6.1.28; 6.2 to before 6.2.15; 6.3 to before 6.3.2 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 5.15.112, 5.17, 5.18
Fix · CNA Linux (Linux) Fixed in 5.15.112, 6.1.28, 6.2.15, 6.3.2, 6.4

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope

Not affected: 4 products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2023-53396
2026-10-03 Alias added: GHSA-427x-59vx-vjwq

References

Patch 5

TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3

See all 15278 →

Sources

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