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CVE-2025-68797 char: applicom: fix NULL pointer dereference in ac_ioctl

🗓️ 13 Jan 2026 15:29:07Reported by LinuxType 
cvelist
 cvelist🔗 www.cve.org👁 21 Views

Linux kernel fix for NULL pointer in applicom ac_ioctl when command is six by skipping readb.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2025-68797
13 Jan 202615:29
–attackerkb
AstraLinux		Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12
24 Jun 202615:11
–astralinux
BDU FSTEC		The vulnerability of the ac_ioctl() function in the Linux operating system allows a hacker to trigger a service failure.
23 Jan 202600:00
–bdu_fstec
CBLMariner		CVE-2025-68797 affecting package kernel for versions less than 6.6.121.1-1
9 Feb 202623:37
–cbl_mariner
Circl		CVE-2025-68797
19 Mar 202600:00
–circl
CNNVD		Linux kernel 安全漏洞
13 Jan 202600:00
–cnnvd
CVE		CVE-2025-68797
13 Jan 202615:29
–cve
Debian		[SECURITY] [DLA 4475-1] linux security update
11 Feb 202612:47
–debian
Debian		[SECURITY] [DLA 4476-1] linux-6.1 security update
11 Feb 202612:48
–debian
Debian		[SECURITY] [DSA 6126-1] linux security update
9 Feb 202618:21
–debian
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/char/applicom.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "5a6240804fb7bbd4f5f6e706955248a6f4c1abbc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "d1b0452280029d05a98c75631131ee61c0b0d084",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "0b8b353e09888bccee405e0dd6feafb60360f478",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "d285517429a75423789e6408653e57b6fdfc8e54",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "74883565c621eec6cd2e35fe6d27454cf2810c23",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "f83e3e9f89181b42f6076a115d767a7552c4a39e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "82d12088c297fa1cef670e1718b3d24f414c23f7",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/char/applicom.c"
    ],
    "versions": [
      {
        "version": "2.6.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.248",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.198",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.160",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.120",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.64",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.3",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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