CVE-2023-53613

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

dax: Fix dax_mapping_release() use after free

A CONFIG_DEBUG_KOBJECT_RELEASE test of removing a device-dax region provider (like modprobe -r dax_hmem) yields:

kobject: 'mapping0' (ffff93eb460e8800): kobject_release, parent 0000000000000000 (delayed 2000) [..] DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 23 PID: 282 at kernel/locking/lockdep.c:232 __lock_acquire+0x9fc/0x2260 [..] RIP: 0010:__lock_acquire+0x9fc/0x2260 [..] Call Trace: <TASK> [..] lock_acquire+0xd4/0x2c0 ? ida_free+0x62/0x130 _raw_spin_lock_irqsave+0x47/0x70 ? ida_free+0x62/0x130 ida_free+0x62/0x130 dax_mapping_release+0x1f/0x30 device_release+0x36/0x90 kobject_delayed_cleanup+0x46/0x150

Due to attempting ida_free() on an ida object that has already been freed. Devices typically only hold a reference on their parent while registered. If a child needs a parent object to complete its release it needs to hold a reference that it drops from its release callback. Arrange for a dax_mapping to pin its parent dev_dax instance until dax_mapping_release().

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca, < 94a85474f5e3e518bdbf8c9f51cb343d734a04f7; >= 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca, < 9c2f993b6ca903c030d58451b5bf9ea27d0d17fa; >= 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca, < 03859868ab82d57bfdd0cea1bf31f9319a5dded0; >= 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca, < f76db6781d76d8464ec2faa9752cc3fb2e4f6923; >= 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca, < 7310b84821f043dcf77d5e6aa0ad55dc1e10a11d; >= 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca, < 6d24b170a9db0456f577b1ab01226a2254c016a8
LinuxLinux5.10

References

Timeline

Published
Oct 4, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2023-53613: High severity, CVSS 7.8 | Vulnix