{ "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-2024-26901", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-26901", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-04-17T10:27:50.374Z", "updatedAt": "2026-10-15T00:39:17.331Z", "importedAt": "2026-10-24T01:57:07.518Z", "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": "do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndo_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak\n\nsyzbot identified a kernel information leak vulnerability in\ndo_sys_name_to_handle() and issued the following report [1].\n\n[1]\n\"BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]\nBUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x100 lib/usercopy.c:40\n instrument_copy_to_user include/linux/instrumented.h:114 [inline]\n _copy_to_user+0xbc/0x100 lib/usercopy.c:40\n copy_to_user include/linux/uaccess.h:191 [inline]\n do_sys_name_to_handle fs/fhandle.c:73 [inline]\n __do_sys_name_to_handle_at fs/fhandle.c:112 [inline]\n __se_sys_name_to_handle_at+0x949/0xb10 fs/fhandle.c:94\n __x64_sys_name_to_handle_at+0xe4/0x140 fs/fhandle.c:94\n ...\n\nUninit was created at:\n slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768\n slab_alloc_node mm/slub.c:3478 [inline]\n __kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517\n __do_kmalloc_node mm/slab_common.c:1006 [inline]\n __kmalloc+0x121/0x3c0 mm/slab_common.c:1020\n kmalloc include/linux/slab.h:604 [inline]\n do_sys_name_to_handle fs/fhandle.c:39 [inline]\n __do_sys_name_to_handle_at fs/fhandle.c:112 [inline]\n __se_sys_name_to_handle_at+0x441/0xb10 fs/fhandle.c:94\n __x64_sys_name_to_handle_at+0xe4/0x140 fs/fhandle.c:94\n ...\n\nBytes 18-19 of 20 are uninitialized\nMemory access of size 20 starts at ffff888128a46380\nData copied to user address 0000000020000240\"\n\nPer Chuck Lever's suggestion, use kzalloc() instead of kmalloc() to\nsolve the problem.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "4bac28f441e3cc9d3f1a84c8d023228a68d8a7c1" }, { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "772a7def9868091da3bcb0d6c6ff9f0c03d7fa8b" }, { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "cde76b3af247f615447bcfecf610bb76c3529126" }, { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "423b6bdf19bbc5e1f7e7461045099917378f7e71" }, { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "e6450d5e46a737a008b4885aa223486113bf0ad6" }, { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "c1362eae861db28b1608b9dc23e49634fe87b63b" }, { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "cba138f1ef37ec6f961baeab62f312dedc7cf730" }, { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "bf9ec1b24ab4e94345aa1c60811dd329f069c38b" }, { "version": "990d6c2d7aee921e3bce22b2d6a750fd552262be", "status": "affected", "versionType": "git", "lessThan": "3948abaa4e2be938ccdfc289385a27342fb13d43" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.39", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.39" }, { "version": "4.19.311", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.273", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.214", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.153", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.83", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.23", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.7.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.7.*" }, { "version": "6.8.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.8.*" }, { "version": "6.9", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }