CVE-2026-93828exfat: fix handling of damaged volume in exfat_create_upcase_table()
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 370e812b3ec190fa492c9fd5a80c38b086d105c0 builds before 60ace93811609e4dd883e9de5fb4462ed834160a; 370e812b3ec190fa492c9fd5a80c38b086d105c0 builds before 2cc0b612343638057ef321ce735201a7c2f52f25; 370e812b3ec190fa492c9fd5a80c38b086d105c0 builds before 20dd3185d13865214ff25b0bf7b931e8d73be1ac | CNA record |
References
- https://git.kernel.org/stable/c/60ace93811609e4dd883e9de5fb4462ed834160a
- https://git.kernel.org/stable/c/2cc0b612343638057ef321ce735201a7c2f52f25
- https://git.kernel.org/stable/c/20dd3185d13865214ff25b0bf7b931e8d73be1ac
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.