CVE-2026-93828
exfat: fix handling of damaged volume in exfat_create_upcase_table()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: exfat: fix handling of damaged volume in exfat_create_upcase_table() When the size of the upcase table is set to zero in the dentry for any reason(e.g. corrupted media or misbehaving device), an integer overflow causes the module to loop indefinitely. If the size of the upcase table is read zero, do not attempt to load the table. Instead, fallback to loading the default upcase table. If the size of the upcase table is zero or no upcase table is found, raise exfat_fs_error() to mark the volume read-only.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 24, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 60ace93811609e4dd883e9de5fb4462ed834160a 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2cc0b612343638057ef321ce735201a7c2f52f25 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 20dd3185d13865214ff25b0bf7b931e8d73be1ac 0 < 6.12.111 0 < 6.18.53
Linux / Linux
All versions affected