CVE-2025-68350

Source
https://cve.org/CVERecord?id=CVE-2025-68350
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68350.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-68350
Downstream
Related
Published
2025-12-24T10:32:41.931Z
Modified
2026-04-02T13:03:34.774549Z
Summary
exfat: fix divide-by-zero in exfat_allocate_bitmap
Details

In the Linux kernel, the following vulnerability has been resolved:

exfat: fix divide-by-zero in exfatallocatebitmap

The variable maxracount can be 0 in exfatallocatebitmap(), which causes a divide-by-zero error in the subsequent modulo operation (i % maxracount), leading to a system crash. When maxracount is 0, it means that readahead is not used. This patch load the bitmap without readahead.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68350.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257
Fixed
88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44
Fixed
d70a5804c563b5e34825353ba9927509df709651

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68350.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.18.0
Fixed
6.18.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68350.json"