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CVE-2025-68350 exfat: fix divide-by-zero in exfat_allocate_bitmap

🗓️ 24 Dec 2025 10:32:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 62 Views

ExFAT fixes divide-by-zero in exfat_allocate_bitmap when max_ra_count is zero, loading bitmap without readahead.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
astralinux
AstraLinux
Astra Linux – Vulnerability in Linux 5.10
20 May 202605:53
–astralinux
bdu_fstec
BDU FSTEC
exFAT file system Heap Buffer Overflow DoS
30 Mar 202600:00
–bdu_fstec
cnnvd
CNNVD
Linux kernel 安全漏洞
24 Dec 202500:00
–cnnvd
cve
CVE
CVE-2025-68350
24 Dec 202510:32
–cve
debiancve
Debian CVE
CVE-2025-68350
24 Dec 202510:32
–debiancve
euvd
EUVD
EUVD-2025-205104
24 Dec 202512:30
–euvd
nvd
NVD
CVE-2025-68350
24 Dec 202511:15
–nvd
opensuse
OPENSUSE Linux
kernel-devel-6.18.5-1.1 on GA media (moderate)
14 Jan 202600:00
–opensuse
osv_bell
osv_bell
BELL-CVE-2025-68350
27 Dec 202506:07
–osv_bell
osv_opensuse
osv_opensuse
OPENSUSE-SU-2026:10039-1 kernel-devel-6.18.5-1.1 on GA media
13 Jan 202600:00
–osv_opensuse
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/exfat/balloc.c"
    ],
    "versions": [
      {
        "version": "9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257",
        "lessThan": "88fc3dd6e631b3e2975f898c6c2b6bc6f7058b44",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9fd688678dd86e3be32a35e3b2c5cc3ef0c4e257",
        "lessThan": "d70a5804c563b5e34825353ba9927509df709651",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/exfat/balloc.c"
    ],
    "versions": [
      {
        "version": "6.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.2",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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