VDB

DEBIAN-CVE-2023-54209

DEBIAN-CVE-2023-54209 PUBLISHED

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.

Affected Products

VendorProductVersions
Debian:14linux0, 0, 0
Debian:13linux0, 0, 0
Debian:12linux6.1.38-2, 6.1.38-2~bpo11+1, 6.1.38-3

Timeline

  • Dec 30, 2025 CVE Published
  • Apr 28, 2026 CVE Updated
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