In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix infinite loop in nilfs_mdt_get_block()
If the disk image that nilfs2 mounts is corrupted and a virtual block
address obtained by block lookup for a metadata file is invalid,
nilfs_bmap_lookup_at_level() may return the same internal return code as
-ENOENT, meaning the block does not exist in the metadata file.
This duplication of return codes confuses nilfs_mdt_get_block(), causing
it to read and create a metadata block indefinitely.
In particular, if this happens to the inode metadata file, ifile,
semaphore i_rwsem can be left held, causing task hangs in lock_mount.
Fix this issue by making nilfs_bmap_lookup_at_level() treat virtual block
address translation failures with -ENOENT as metadata corruption instead
of returning the error code.
CVSS
No CVSS.
References
Configurations
No configuration.
History
No history.
Information
Published : 2025-12-09 16:17
Updated : 2026-06-17 06:46
NVD link : CVE-2023-53845
Mitre link : CVE-2023-53845
CVE.ORG link : CVE-2023-53845
JSON object : View
Products Affected
No product.
CWE
No CWE.
