{"id":"CVE-2021-3501","details":"A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.","modified":"2026-01-30T17:28:49.087426Z","published":"2021-05-06T13:15:12.840Z","related":["ALSA-2021:2168"],"references":[{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1950136"},{"type":"ARTICLE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04c4f2ee3f68c9a4bf1653d15f1a9a435ae33f7a"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210618-0008/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git","events":[{"introduced":"0"},{"fixed":"04c4f2ee3f68c9a4bf1653d15f1a9a435ae33f7a"}]}],"versions":["v2.6.12","v2.6.12-rc2","v2.6.12-rc3","v2.6.12-rc4","v2.6.12-rc5","v2.6.12-rc6","v2.6.13","v2.6.13-rc1","v2.6.13-rc2","v2.6.13-rc3","v2.6.13-rc4","v2.6.13-rc5","v2.6.13-rc6","v2.6.13-rc7","v2.6.14","v2.6.14-rc1","v2.6.14-rc2","v2.6.14-rc3","v2.6.14-rc4","v2.6.14-rc5","v2.6.15","v2.6.15-rc1","v2.6.15-rc2","v2.6.15-rc3","v2.6.15-rc4","v2.6.15-rc5","v2.6.15-rc6","v2.6.15-rc7","v2.6.16","v2.6.16-rc1","v2.6.16-rc2","v2.6.16-rc3","v2.6.16-rc4","v2.6.16-rc5","v2.6.16-rc6","v2.6.17","v2.6.17-rc1","v2.6.17-rc2","v2.6.17-rc3","v2.6.17-rc4","v2.6.17-rc5","v2.6.17-rc6","v2.6.18","v2.6.18-rc1","v2.6.18-rc2","v2.6.18-rc3","v2.6.18-rc4","v2.6.18-rc5","v2.6.18-rc6","v2.6.18-rc7","v2.6.19","v2.6.19-rc1","v2.6.19-rc2","v2.6.19-rc3","v2.6.19-rc4","v2.6.19-rc5","v2.6.19-rc6","v2.6.20","v2.6.20-rc1","v2.6.20-rc2","v2.6.20-rc3","v2.6.20-rc4","v2.6.20-rc5","v2.6.20-rc6","v2.6.20-rc7","v2.6.21","v2.6.21-rc1","v2.6.21-rc2","v2.6.21-rc3","v2.6.21-rc4","v2.6.21-rc5","v2.6.21-rc6","v2.6.21-rc7","v2.6.22","v2.6.22-rc1","v2.6.22-rc2","v2.6.22-rc3","v2.6.22-rc4","v2.6.22-rc5","v2.6.22-rc6","v2.6.22-rc7","v2.6.23","v2.6.23-rc1","v2.6.23-rc2","v2.6.23-rc3","v2.6.23-rc4","v2.6.23-rc5","v2.6.23-rc6","v2.6.23-rc7","v2.6.23-rc8","v2.6.23-rc9","v2.6.24","v2.6.24-rc1","v2.6.24-rc2","v2.6.24-rc3","v2.6.24-rc4","v2.6.24-rc5","v2.6.24-rc6","v2.6.24-rc7","v2.6.24-rc8","v2.6.25","v2.6.25-rc1","v2.6.25-rc2","v2.6.25-rc3","v2.6.25-rc4","v2.6.25-rc5","v2.6.25-rc6","v2.6.25-rc7","v2.6.25-rc8","v2.6.25-rc9","v2.6.26","v2.6.26-rc1","v2.6.26-rc2","v2.6.26-rc3","v2.6.26-rc4","v2.6.26-rc5","v2.6.26-rc6","v2.6.26-rc7","v2.6.26-rc8","v2.6.26-rc9","v2.6.27","v2.6.27-rc1","v2.6.27-rc2","v2.6.27-rc3","v2.6.27-rc4","v2.6.27-rc5","v2.6.27-rc6","v2.6.27-rc7","v2.6.27-rc8","v2.6.27-rc9","v2.6.28","v2.6.28-rc1","v2.6.28-rc2","v2.6.28-rc3","v2.6.28-rc4","v2.6.28-rc5","v2.6.28-rc6","v2.6.28-rc7","v2.6.28-rc8","v2.6.28-rc9","v2.6.29","v2.6.29-rc1","v2.6.29-rc2","v2.6.29-rc3","v2.6.29-rc4","v2.6.29-rc5","v2.6.29-rc6","v2.6.29-rc7","v2.6.29-rc8","v2.6.30","v2.6.30-rc1","v2.6.30-rc2","v2.6.30-rc3","v2.6.30-rc4","v2.6.30-rc5","v2.6.30-rc6","v2.6.30-rc7","v2.6.30-rc8","v2.6.31","v2.6.31-rc1","v2.6.31-rc2","v2.6.31-rc3","v2.6.31-rc4","v2.6.31-rc5","v2.6.31-rc6","v2.6.31-rc7","v2.6.31-rc8","v2.6.31-rc9","v2.6.32","v2.6.32-rc1","v2.6.32-rc2","v2.6.32-rc3","v2.6.32-rc4","v2.6.32-rc5","v2.6.32-rc6","v2.6.32-rc7","v2.6.32-rc8","v2.6.33","v2.6.33-rc1","v2.6.33-rc2","v2.6.33-rc3","v2.6.33-rc4","v2.6.33-rc5","v2.6.33-rc6","v2.6.33-rc7","v2.6.33-rc8","v2.6.34","v2.6.34-rc1","v2.6.34-rc2","v2.6.34-rc3","v2.6.34-rc4","v2.6.34-rc5","v2.6.34-rc6","v2.6.34-rc7","v2.6.35","v2.6.35-rc1","v2.6.35-rc2","v2.6.35-rc3","v2.6.35-rc4","v2.6.35-rc5","v2.6.35-rc6","v2.6.36","v2.6.36-rc1","v2.6.36-rc2","v2.6.36-rc3","v2.6.36-rc4","v2.6.36-rc5","v2.6.36-rc6","v2.6.36-rc7","v2.6.36-rc8","v2.6.37","v2.6.37-rc1","v2.6.37-rc2","v2.6.37-rc3","v2.6.37-rc4","v2.6.37-rc5","v2.6.37-rc6","v2.6.37-rc7","v2.6.37-rc8","v2.6.38","v2.6.38-rc1","v2.6.38-rc2","v2.6.38-rc3","v2.6.38-rc4","v2.6.38-rc5","v2.6.38-rc6","v2.6.38-rc7","v2.6.38-rc8","v2.6.39","v2.6.39-rc1","v2.6.39-rc2","v2.6.39-rc3","v2.6.39-rc4","v2.6.39-rc5","v2.6.39-rc6","v2.6.39-rc7","v3.0","v3.0-rc1","v3.0-rc2","v3.0-rc3","v3.0-rc4","v3.0-rc5","v3.0-rc6","v3.0-rc7","v3.1","v3.1-rc1","v3.1-rc10","v3.1-rc2","v3.1-rc3","v3.1-rc4","v3.1-rc5","v3.1-rc6","v3.1-rc7","v3.1-rc8","v3.1-rc9","v3.10","v3.10-rc1","v3.10-rc2","v3.10-rc3","v3.10-rc4","v3.10-rc5","v3.10-rc6","v3.10-rc7","v3.11","v3.11-rc1","v3.11-rc2","v3.11-rc3","v3.11-rc4","v3.11-rc5","v3.11-rc6","v3.11-rc7","v3.12","v3.12-rc1","v3.12-rc2","v3.12-rc3","v3.12-rc4","v3.12-rc5","v3.12-rc6","v3.12-rc7","v3.13","v3.13-rc1","v3.13-rc2","v3.13-rc3","v3.13-rc4","v3.13-rc5","v3.13-rc6","v3.13-rc7","v3.13-rc8","v3.14","v3.14-rc1","v3.14-rc2","v3.14-rc3","v3.14-rc4","v3.14-rc5","v3.14-rc6","v3.14-rc7","v3.14-rc8","v3.15","v3.15-rc1","v3.15-rc2","v3.15-rc3","v3.15-rc4","v3.15-rc5","v3.15-rc6","v3.15-rc7","v3.15-rc8","v3.16","v3.16-rc1","v3.16-rc2","v3.16-rc3","v3.16-rc4","v3.16-rc5","v3.16-rc6","v3.16-rc7","v3.17","v3.17-rc1","v3.17-rc2","v3.17-rc3","v3.17-rc4","v3.17-rc5","v3.17-rc6","v3.17-rc7","v3.18","v3.18-rc1","v3.18-rc2","v3.18-rc3","v3.18-rc4","v3.18-rc5","v3.18-rc6","v3.18-rc7","v3.19","v3.19-rc1","v3.19-rc2","v3.19-rc3","v3.19-rc4","v3.19-rc5","v3.19-rc6","v3.19-rc7","v3.2","v3.2-rc1","v3.2-rc2","v3.2-rc3","v3.2-rc4","v3.2-rc5","v3.2-rc6","v3.2-rc7","v3.3","v3.3-rc1","v3.3-rc2","v3.3-rc3","v3.3-rc4","v3.3-rc5","v3.3-rc6","v3.3-rc7","v3.4","v3.4-rc1","v3.4-rc2","v3.4-rc3","v3.4-rc4","v3.4-rc5","v3.4-rc6","v3.4-rc7","v3.5","v3.5-rc1","v3.5-rc2","v3.5-rc3","v3.5-rc4","v3.5-rc5","v3.5-rc6","v3.5-rc7","v3.6","v3.6-rc1","v3.6-rc2","v3.6-rc3","v3.6-rc4","v3.6-rc5","v3.6-rc6","v3.6-rc7","v3.7","v3.7-rc1","v3.7-rc2","v3.7-rc3","v3.7-rc4","v3.7-rc5","v3.7-rc6","v3.7-rc7","v3.7-rc8","v3.8","v3.8-rc1","v3.8-rc2","v3.8-rc3","v3.8-rc4","v3.8-rc5","v3.8-rc6","v3.8-rc7","v3.9","v3.9-rc1","v3.9-rc2","v3.9-rc3","v3.9-rc4","v3.9-rc5","v3.9-rc6","v3.9-rc7","v3.9-rc8","v4.0","v4.0-rc1","v4.0-rc2","v4.0-rc3","v4.0-rc4","v4.0-rc5","v4.0-rc6","v4.0-rc7","v4.1","v4.1-rc1","v4.1-rc2","v4.1-rc3","v4.1-rc4","v4.1-rc5","v4.1-rc6","v4.1-rc7","v4.1-rc8","v4.10","v4.10-rc1","v4.10-rc2","v4.10-rc3","v4.10-rc4","v4.10-rc5","v4.10-rc6","v4.10-rc7","v4.10-rc8","v4.11","v4.11-rc1","v4.11-rc2","v4.11-rc3","v4.11-rc4","v4.11-rc5","v4.11-rc6","v4.11-rc7","v4.11-rc8","v4.12","v4.12-rc1","v4.12-rc2","v4.12-rc3","v4.12-rc4","v4.12-rc5","v4.12-rc6","v4.12-rc7","v4.13","v4.13-rc1","v4.13-rc2","v4.13-rc3","v4.13-rc4","v4.13-rc5","v4.13-rc6","v4.13-rc7","v4.14","v4.14-rc1","v4.14-rc2","v4.14-rc3","v4.14-rc4","v4.14-rc5","v4.14-rc6","v4.14-rc7","v4.14-rc8","v4.15","v4.15-rc1","v4.15-rc2","v4.15-rc3","v4.15-rc4","v4.15-rc5","v4.15-rc6","v4.15-rc7","v4.15-rc8","v4.15-rc9","v4.16","v4.16-rc1","v4.16-rc2","v4.16-rc3","v4.16-rc4","v4.16-rc5","v4.16-rc6","v4.16-rc7","v4.17","v4.17-rc1","v4.17-rc2","v4.17-rc3","v4.17-rc4","v4.17-rc5","v4.17-rc6","v4.17-rc7","v4.18","v4.18-rc1","v4.18-rc2","v4.18-rc3","v4.18-rc4","v4.18-rc5","v4.18-rc6","v4.18-rc7","v4.18-rc8","v4.19","v4.19-rc1","v4.19-rc2","v4.19-rc3","v4.19-rc4","v4.19-rc5","v4.19-rc6","v4.19-rc7","v4.19-rc8","v4.2","v4.2-rc1","v4.2-rc2","v4.2-rc3","v4.2-rc4","v4.2-rc5","v4.2-rc6","v4.2-rc7","v4.2-rc8","v4.20","v4.20-rc1","v4.20-rc2","v4.20-rc3","v4.20-rc4","v4.20-rc5","v4.20-rc6","v4.20-rc7","v4.3","v4.3-rc1","v4.3-rc2","v4.3-rc3","v4.3-rc4","v4.3-rc5","v4.3-rc6","v4.3-rc7","v4.4","v4.4-rc1","v4.4-rc2","v4.4-rc3","v4.4-rc4","v4.4-rc5","v4.4-rc6","v4.4-rc7","v4.4-rc8","v4.5","v4.5-rc1","v4.5-rc2","v4.5-rc3","v4.5-rc4","v4.5-rc5","v4.5-rc6","v4.5-rc7","v4.6","v4.6-rc1","v4.6-rc2","v4.6-rc3","v4.6-rc4","v4.6-rc5","v4.6-rc6","v4.6-rc7","v4.7","v4.7-rc1","v4.7-rc2","v4.7-rc3","v4.7-rc4","v4.7-rc5","v4.7-rc6","v4.7-rc7","v4.8","v4.8-rc1","v4.8-rc2","v4.8-rc3","v4.8-rc4","v4.8-rc5","v4.8-rc6","v4.8-rc7","v4.8-rc8","v4.9","v4.9-rc1","v4.9-rc2","v4.9-rc3","v4.9-rc4","v4.9-rc5","v4.9-rc6","v4.9-rc7","v4.9-rc8","v5.0","v5.0-rc1","v5.0-rc2","v5.0-rc3","v5.0-rc4","v5.0-rc5","v5.0-rc6","v5.0-rc7","v5.0-rc8","v5.1","v5.1-rc1","v5.1-rc2","v5.1-rc3","v5.1-rc4","v5.1-rc5","v5.1-rc6","v5.1-rc7","v5.10","v5.10-rc1","v5.10-rc2","v5.10-rc3","v5.10-rc4","v5.10-rc5","v5.10-rc6","v5.10-rc7","v5.11","v5.11-rc1","v5.11-rc2","v5.11-rc3","v5.11-rc4","v5.11-rc5","v5.11-rc6","v5.11-rc7","v5.12-rc1","v5.12-rc1-dontuse","v5.12-rc2","v5.12-rc3","v5.12-rc4","v5.12-rc5","v5.2","v5.2-rc1","v5.2-rc2","v5.2-rc3","v5.2-rc4","v5.2-rc5","v5.2-rc6","v5.2-rc7","v5.3","v5.3-rc1","v5.3-rc2","v5.3-rc3","v5.3-rc4","v5.3-rc5","v5.3-rc6","v5.3-rc7","v5.3-rc8","v5.4","v5.4-rc1","v5.4-rc2","v5.4-rc3","v5.4-rc4","v5.4-rc5","v5.4-rc6","v5.4-rc7","v5.4-rc8","v5.5","v5.5-rc1","v5.5-rc2","v5.5-rc3","v5.5-rc4","v5.5-rc5","v5.5-rc6","v5.5-rc7","v5.6","v5.6-rc1","v5.6-rc2","v5.6-rc3","v5.6-rc4","v5.6-rc5","v5.6-rc6","v5.6-rc7","v5.7","v5.7-rc1","v5.7-rc2","v5.7-rc3","v5.7-rc4","v5.7-rc5","v5.7-rc6","v5.7-rc7","v5.8","v5.8-rc1","v5.8-rc2","v5.8-rc3","v5.8-rc4","v5.8-rc5","v5.8-rc6","v5.8-rc7","v5.9","v5.9-rc1","v5.9-rc2","v5.9-rc3","v5.9-rc4","v5.9-rc5","v5.9-rc6","v5.9-rc7","v5.9-rc8"],"database_specific":{"vanir_signatures":[{"target":{"file":"arch/x86/kvm/vmx/vmx.c"},"digest":{"line_hashes":["269426812894681229925191221266775975419","125177580148737741560233129712065697401","139768033346909044318497138805129078465","107590212830701058383507410145128826789","265440139703330611465081943257705546720","115826472126788773574451281193238763330","69050417516390421201097858078819928226","319839744529021663690881385000392678362","21874155242032712907282542695052650452","301443942158641119380196954227490289909","181166251320990619965491426290180378558","210253325523775238959896384404843504900","304164241116515091568477398842462999848","224378331362183497222620786063193875065","251828512003316140557321299447730889888","270745083856390991014668330259266672269","143841222763082563097636084837162935468"],"threshold":0.9},"signature_version":"v1","source":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@04c4f2ee3f68c9a4bf1653d15f1a9a435ae33f7a","signature_type":"Line","deprecated":false,"id":"CVE-2021-3501-5756287b"},{"target":{"file":"arch/x86/kvm/vmx/vmx.c","function":"__vmx_handle_exit"},"digest":{"length":3580,"function_hash":"331506563304759509880284074240815900620"},"signature_version":"v1","source":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@04c4f2ee3f68c9a4bf1653d15f1a9a435ae33f7a","signature_type":"Function","deprecated":false,"id":"CVE-2021-3501-c59ec54d"}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3501.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"}]}