Wind River Support Network

Description

In the Linux kernel, the following vulnerability has been resolved:EOL][EOL]exfat: add cluster chain loop check for dir[EOL][EOL]An infinite loop may occur if the following conditions occur due to[EOL]file system corruption.[EOL][EOL](1) Condition for exfat_count_dir_entries() to loop infinitely.[EOL]    - The cluster chain includes a loop.[EOL]    - There is no UNUSED entry in the cluster chain.[EOL][EOL](2) Condition for exfat_create_upcase_table() to loop infinitely.[EOL]    - The cluster chain of the root directory includes a loop.[EOL]    - There are no UNUSED entry and up-case table entry in the cluster[EOL]      chain of the root directory.[EOL][EOL](3) Condition for exfat_load_bitmap() to loop infinitely.[EOL]    - The cluster chain of the root directory includes a loop.[EOL]    - There are no UNUSED entry and bitmap entry in the cluster chain[EOL]      of the root directory.[EOL][EOL](4) Condition for exfat_find_dir_entry() to loop infinitely.[EOL]    - The cluster chain includes a loop.[EOL]    - The unused directory entries were exhausted by some operation.[EOL][EOL](5) Condition for exfat_check_dir_empty() to loop infinitely.[EOL]    - The cluster chain includes a loop.[EOL]    - The unused directory entries were exhausted by some operation.[EOL]    - All files and sub-directories under the directory are deleted.[EOL][EOL]This commit adds checks to break the above infinite loop.

CREATE(Triage):(User=admin) [CVE-2025-38692 (https://nvd.nist.gov/vuln/detail/CVE-2025-38692)