{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53234", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53234", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-09-15T14:22:07.219Z", "updatedAt": "2026-05-23T15:28:21.133Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "watchdog: Fix kmemleak in watchdog_cdev_register", "summary": "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": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "450caf1faa0d7bbbd1da93d3ee8c5edea7bc51a8", "status": "affected", "versionType": "git", "lessThan": "bf26b0e430ce34261f45959989edaf680b64d538" }, { "version": "f4c36f1999745c2160422fe2f362deadbe3a136b", "status": "affected", "versionType": "git", "lessThan": "8c1655600f4f2839fb844fe8c70b2b65fadc7a56" }, { "version": "ca7851d46de8a8d69022c4e5feed0820483b5f46", "status": "affected", "versionType": "git", "lessThan": "59e391b3fc507a15b7e8e9d9f4de87cae177c366" }, { "version": "72139dfa2464e43957d330266994740bb7be2535", "status": "affected", "versionType": "git", "lessThan": "c5a21a5501508ae3afa2fe6d5a3e74a37fa48df3" }, { "version": "72139dfa2464e43957d330266994740bb7be2535", "status": "affected", "versionType": "git", "lessThan": "23cc41c3f19c4d858c3708f1c0a06e94958e6c3b" }, { "version": "72139dfa2464e43957d330266994740bb7be2535", "status": "affected", "versionType": "git", "lessThan": "ac099d94e0480c937aa9172ab64074981ca1a4d3" }, { "version": "72139dfa2464e43957d330266994740bb7be2535", "status": "affected", "versionType": "git", "lessThan": "50808d034e199fe3ff7a9d2068a4eebeb6b4098a" }, { "version": "72139dfa2464e43957d330266994740bb7be2535", "status": "affected", "versionType": "git", "lessThan": "13721a2ac66b246f5802ba1b75ad8637e53eeecc" }, { "version": "f76905ce52653e8a821963c35d9013cff19b1399", "status": "affected", "versionType": "git" }, { "version": "4.14.182", "status": "affected", "versionType": "semver", "lessThan": "4.14.308" }, { "version": "4.19.93", "status": "affected", "versionType": "semver", "lessThan": "4.19.276" }, { "version": "5.4.8", "status": "affected", "versionType": "semver", "lessThan": "5.4.235" }, { "version": "4.9.225", "status": "affected", "versionType": "semver", "lessThan": "4.10" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.5", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.5" }, { "version": "4.14.308", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.276", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.235", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.173", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.100", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.18", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2.5", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }