CVE-2023-54209

In the Linux kernel, the following vulnerability has been resolved: block: fix blktrace debugfs entries leakage Commit 99d055b4fd4b ("block: remove per-disk debugfs files in blk_unregister_queue") moves blk_trace_shutdown() from blk_release_queue() to blk_unregister_queue(), this is safe if blktrace is created through sysfs, however, there is a regression in corner case. blktrace can still be enabled after del_gendisk() through ioctl if the disk is opened before del_gendisk(), and if blktrace is not shutdown through ioctl before closing the disk, debugfs entries will be leaked. Fix this problem by shutdown blktrace in disk_release(), this is safe because blk_trace_remove() is reentrant.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/7149e57cf01184fba175589f8fbe9fbf33be02e1
https://git.kernel.org/stable/c/942e81650b81b4ca62f1d8c61de455c9e7c7e6ca
https://git.kernel.org/stable/c/aa07e56c6a9c7558165690d14eed4fe8babf34fb
https://git.kernel.org/stable/c/dd7de3704af9989b780693d51eaea49a665bd9c2

Configurations

No configuration.

History

No history.

Information

Published : 2025-12-30 13:16

Updated : 2026-06-17 06:47

NVD link : CVE-2023-54209

Mitre link : CVE-2023-54209

CVE.ORG link : CVE-2023-54209

JSON object : View

Products Affected

No product.

CWE

No CWE.

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