CVE-2026-98935

{
  "id": "CVE-2026-98935",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-23T13:17:14.377",
  "lastModified": "2026-10-30T13:21:32.003",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: dev: zero-initialize struct rtc_wkalrm to prevent information leak\n\nThe struct rtc_wkalrm has padding holes after the 'pending' member.\nWhen returned to userspace via the RTC_WKALRM_RD ioctl, uninitialized\nkernel stack data residing in these holes may be leaked.\n\nZero-initialize the struct at declaration to eliminate this information\nleak risk.\n\nFixes smatch warnings:\n- drivers/rtc/dev.c:392 rtc_dev_ioctl() warn: check that 'alarm' doesn't\n  leak information (struct has a hole after 'pending')"
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/rtc/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
              "lessThan": "f84eb9b7b0feeb267a174237d70a857042ce0158",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
              "lessThan": "a2215eb3cbbd3d9d73cc18c08e3ef53f903443cb",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
              "lessThan": "beda3c9730ad3087d01aa1d0415c40942042ec87",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
              "lessThan": "00dc50cede96738dadc64b20e671186cddb8a58d",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
              "lessThan": "2838d7bbb551861c25187dfb581ed6e7a56762e9",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
              "lessThan": "0ee5c5d804d592a8328a425b9274487d393d3a05",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/rtc/dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5.0",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.0",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.191",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.113",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.56",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.10",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/00dc50cede96738dadc64b20e671186cddb8a58d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/0ee5c5d804d592a8328a425b9274487d393d3a05",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2838d7bbb551861c25187dfb581ed6e7a56762e9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a2215eb3cbbd3d9d73cc18c08e3ef53f903443cb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/beda3c9730ad3087d01aa1d0415c40942042ec87",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f84eb9b7b0feeb267a174237d70a857042ce0158",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}