Improper locking in Linux kernel - CVE-2025-38073
Published: June 20, 2025
Vulnerability identifier: #VU111597
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-38073
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the blk_ioctl_discard(), blk_finish_plug(), blk_ioctl_secure_erase() and blk_ioctl_zeroout() functions in block/ioctl.c, within the blkdev_write_iter(), blkdev_read_iter() and blkdev_fallocate() functions in block/fops.c, within the blkdev_zone_mgmt_ioctl() function in block/blk-zoned.c, within the set_blocksize() function in block/bdev.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-38073
Install update from vendor's repository.