{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98935",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.381Z",
        "datePublished": "2026-10-23T12:11:46.041Z",
        "dateUpdated": "2026-10-30T12:40:24.910Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-30T12:40:24.910Z"
            },
            "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": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/rtc/dev.c"
                    ],
                    "versions": [
                        {
                            "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
                            "lessThan": "f84eb9b7b0feeb267a174237d70a857042ce0158",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
                            "lessThan": "a2215eb3cbbd3d9d73cc18c08e3ef53f903443cb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
                            "lessThan": "beda3c9730ad3087d01aa1d0415c40942042ec87",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
                            "lessThan": "00dc50cede96738dadc64b20e671186cddb8a58d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
                            "lessThan": "2838d7bbb551861c25187dfb581ed6e7a56762e9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62",
                            "lessThan": "0ee5c5d804d592a8328a425b9274487d393d3a05",
                            "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/rtc/dev.c"
                    ],
                    "versions": [
                        {
                            "version": "5.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.191",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.56",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.10",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.1.191"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "6.18.56"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.2.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.0",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/f84eb9b7b0feeb267a174237d70a857042ce0158"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a2215eb3cbbd3d9d73cc18c08e3ef53f903443cb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/beda3c9730ad3087d01aa1d0415c40942042ec87"
                },
                {
                    "url": "https://git.kernel.org/stable/c/00dc50cede96738dadc64b20e671186cddb8a58d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2838d7bbb551861c25187dfb581ed6e7a56762e9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0ee5c5d804d592a8328a425b9274487d393d3a05"
                }
            ],
            "title": "rtc: dev: zero-initialize struct rtc_wkalrm to prevent information leak",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}