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vuln-cve/data/2023/53xxx/CVE-2023-53234.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2023-53234",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-09-15T14:19:21.847Z",
"datePublished": "2025-09-15T14:22:07.219Z",
"dateUpdated": "2026-05-23T15:28:21.133Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-23T15:28:21.133Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: Fix kmemleak in watchdog_cdev_register\n\nkmemleak reports memory leaks in watchdog_dev_register, as follows:\nunreferenced object 0xffff888116233000 (size 2048):\n comm \"\"modprobe\"\", pid 28147, jiffies 4353426116 (age 61.741s)\n hex dump (first 32 bytes):\n 80 fa b9 05 81 88 ff ff 08 30 23 16 81 88 ff ff .........0#.....\n 08 30 23 16 81 88 ff ff 00 00 00 00 00 00 00 00 .0#.............\n backtrace:\n [<000000007f001ffd>] __kmem_cache_alloc_node+0x157/0x220\n [<000000006a389304>] kmalloc_trace+0x21/0x110\n [<000000008d640eea>] watchdog_dev_register+0x4e/0x780 [watchdog]\n [<0000000053c9f248>] __watchdog_register_device+0x4f0/0x680 [watchdog]\n [<00000000b2979824>] watchdog_register_device+0xd2/0x110 [watchdog]\n [<000000001f730178>] 0xffffffffc10880ae\n [<000000007a1a8bcc>] do_one_initcall+0xcb/0x4d0\n [<00000000b98be325>] do_init_module+0x1ca/0x5f0\n [<0000000046d08e7c>] load_module+0x6133/0x70f0\n ...\n\nunreferenced object 0xffff888105b9fa80 (size 16):\n comm \"\"modprobe\"\", pid 28147, jiffies 4353426116 (age 61.741s)\n hex dump (first 16 bytes):\n 77 61 74 63 68 64 6f 67 31 00 b9 05 81 88 ff ff watchdog1.......\n backtrace:\n [<000000007f001ffd>] __kmem_cache_alloc_node+0x157/0x220\n [<00000000486ab89b>] __kmalloc_node_track_caller+0x44/0x1b0\n [<000000005a39aab0>] kvasprintf+0xb5/0x140\n [<0000000024806f85>] kvasprintf_const+0x55/0x180\n [<000000009276cb7f>] kobject_set_name_vargs+0x56/0x150\n [<00000000a92e820b>] dev_set_name+0xab/0xe0\n [<00000000cec812c6>] watchdog_dev_register+0x285/0x780 [watchdog]\n [<0000000053c9f248>] __watchdog_register_device+0x4f0/0x680 [watchdog]\n [<00000000b2979824>] watchdog_register_device+0xd2/0x110 [watchdog]\n [<000000001f730178>] 0xffffffffc10880ae\n [<000000007a1a8bcc>] do_one_initcall+0xcb/0x4d0\n [<00000000b98be325>] do_init_module+0x1ca/0x5f0\n [<0000000046d08e7c>] load_module+0x6133/0x70f0\n ...\n\nThe reason is that put_device is not be called if cdev_device_add fails\nand wdd->id != 0.\n\nwatchdog_cdev_register\n wd_data = kzalloc [1]\n err = dev_set_name [2]\n ..\n err = cdev_device_add\n if (err) {\n if (wdd->id == 0) { // wdd->id != 0\n ..\n }\n return err; // [1],[2] would be leaked\n\nTo fix it, call put_device in all wdd->id cases."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/watchdog/watchdog_dev.c"
],
"versions": [
{
"version": "450caf1faa0d7bbbd1da93d3ee8c5edea7bc51a8",
"lessThan": "bf26b0e430ce34261f45959989edaf680b64d538",
"status": "affected",
"versionType": "git"
},
{
"version": "f4c36f1999745c2160422fe2f362deadbe3a136b",
"lessThan": "8c1655600f4f2839fb844fe8c70b2b65fadc7a56",
"status": "affected",
"versionType": "git"
},
{
"version": "ca7851d46de8a8d69022c4e5feed0820483b5f46",
"lessThan": "59e391b3fc507a15b7e8e9d9f4de87cae177c366",
"status": "affected",
"versionType": "git"
},
{
"version": "72139dfa2464e43957d330266994740bb7be2535",
"lessThan": "c5a21a5501508ae3afa2fe6d5a3e74a37fa48df3",
"status": "affected",
"versionType": "git"
},
{
"version": "72139dfa2464e43957d330266994740bb7be2535",
"lessThan": "23cc41c3f19c4d858c3708f1c0a06e94958e6c3b",
"status": "affected",
"versionType": "git"
},
{
"version": "72139dfa2464e43957d330266994740bb7be2535",
"lessThan": "ac099d94e0480c937aa9172ab64074981ca1a4d3",
"status": "affected",
"versionType": "git"
},
{
"version": "72139dfa2464e43957d330266994740bb7be2535",
"lessThan": "50808d034e199fe3ff7a9d2068a4eebeb6b4098a",
"status": "affected",
"versionType": "git"
},
{
"version": "72139dfa2464e43957d330266994740bb7be2535",
"lessThan": "13721a2ac66b246f5802ba1b75ad8637e53eeecc",
"status": "affected",
"versionType": "git"
},
{
"version": "f76905ce52653e8a821963c35d9013cff19b1399",
"status": "affected",
"versionType": "git"
},
{
"version": "4.14.182",
"lessThan": "4.14.308",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.19.93",
"lessThan": "4.19.276",
"status": "affected",
"versionType": "semver"
},
{
"version": "5.4.8",
"lessThan": "5.4.235",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.9.225",
"lessThan": "4.10",
"status": "affected",
"versionType": "semver"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/watchdog/watchdog_dev.c"
],
"versions": [
{
"version": "5.5",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.5",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.308",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.276",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.235",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.173",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.100",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.18",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.2.5",
"lessThanOrEqual": "6.2.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.3",
"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": "4.14.182",
"versionEndExcluding": "4.14.308"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.19.93",
"versionEndExcluding": "4.19.276"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.8",
"versionEndExcluding": "5.4.235"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "5.10.173"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "5.15.100"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "6.1.18"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "6.2.5"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.5",
"versionEndExcluding": "6.3"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.9.225"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/bf26b0e430ce34261f45959989edaf680b64d538"
},
{
"url": "https://git.kernel.org/stable/c/8c1655600f4f2839fb844fe8c70b2b65fadc7a56"
},
{
"url": "https://git.kernel.org/stable/c/59e391b3fc507a15b7e8e9d9f4de87cae177c366"
},
{
"url": "https://git.kernel.org/stable/c/c5a21a5501508ae3afa2fe6d5a3e74a37fa48df3"
},
{
"url": "https://git.kernel.org/stable/c/23cc41c3f19c4d858c3708f1c0a06e94958e6c3b"
},
{
"url": "https://git.kernel.org/stable/c/ac099d94e0480c937aa9172ab64074981ca1a4d3"
},
{
"url": "https://git.kernel.org/stable/c/50808d034e199fe3ff7a9d2068a4eebeb6b4098a"
},
{
"url": "https://git.kernel.org/stable/c/13721a2ac66b246f5802ba1b75ad8637e53eeecc"
}
],
"title": "watchdog: Fix kmemleak in watchdog_cdev_register",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2023-53234",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-01-14T17:55:57.957947Z"
}
}
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"type": "CWE",
"cweId": "CWE-401",
"description": "CWE-401 Missing Release of Memory after Effective Lifetime"
}
]
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-01-14T18:02:49.667Z"
}
}
]
}
}
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