CVE-2025-38692 (GCVE-0-2025-38692)
Vulnerability from cvelistv5 – Published: 2025-09-04 15:32 – Updated: 2026-05-11 21:33
VLAI
EPSS
VEX
Title
exfat: add cluster chain loop check for dir
Summary
In the Linux kernel, the following vulnerability has been resolved:
exfat: add cluster chain loop check for dir
An infinite loop may occur if the following conditions occur due to
file system corruption.
(1) Condition for exfat_count_dir_entries() to loop infinitely.
- The cluster chain includes a loop.
- There is no UNUSED entry in the cluster chain.
(2) Condition for exfat_create_upcase_table() to loop infinitely.
- The cluster chain of the root directory includes a loop.
- There are no UNUSED entry and up-case table entry in the cluster
chain of the root directory.
(3) Condition for exfat_load_bitmap() to loop infinitely.
- The cluster chain of the root directory includes a loop.
- There are no UNUSED entry and bitmap entry in the cluster chain
of the root directory.
(4) Condition for exfat_find_dir_entry() to loop infinitely.
- The cluster chain includes a loop.
- The unused directory entries were exhausted by some operation.
(5) Condition for exfat_check_dir_empty() to loop infinitely.
- The cluster chain includes a loop.
- The unused directory entries were exhausted by some operation.
- All files and sub-directories under the directory are deleted.
This commit adds checks to break the above infinite loop.
Severity
5.5 (Medium)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 , < 868f23286c1a13162330fa6c614fe350f78e3f82
(git)
Affected: 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 , < aa8fe7b7b73d4c9a41bb96cb3fb3092f794ecb33 (git) Affected: 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 , < e2066ca3ef49a30920d8536fa366b2a183a808ee (git) Affected: 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 , < 4c3cda20c4cf1871e27868d08fda06b79bc7d568 (git) Affected: 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 , < 99f9a97dce39ad413c39b92c90393bbd6778f3fd (git) |
guessed | |
| Linux | Linux |
Affected:
5.7
Unaffected: 0 , < 5.7 (semver) Unaffected: 6.6.103 , ≤ 6.6.* (semver) Unaffected: 6.12.43 , ≤ 6.12.* (semver) Unaffected: 6.15.11 , ≤ 6.15.* (semver) Unaffected: 6.16.2 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
guessed |
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}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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