CVE-2025-38692None▾ SunlitIn 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_…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 3.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
Last analysed / modified upstream
0.2% → 0.2%
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.
Linux >= 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 < 1715f0996f7baf817c73613aeda500c4f73a6bd6Linux >= 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 < 868f23286c1a13162330fa6c614fe350f78e3f82Linux >= 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 < aa8fe7b7b73d4c9a41bb96cb3fb3092f794ecb33Linux >= 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 < e2066ca3ef49a30920d8536fa366b2a183a808eeLinux >= 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 < 4c3cda20c4cf1871e27868d08fda06b79bc7d568Linux >= 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 < 99f9a97dce39ad413c39b92c90393bbd6778f3fdLinux 5.7Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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