{"id":"CVE-2024-26820","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nhv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed\n\nIf hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER\nhandler cannot perform VF re…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nhv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed\n\nIf hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER\nhandler cannot perform VF re…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.19.301, < 4.19.310","linux_kernel >= 5.4.263, < 5.4.272","linux_kernel >= 5.10.203, < 5.10.213","linux_kernel >= 5.15.141, < 5.15.152","linux_kernel >= 6.1.65, < 6.1.79","linux_kernel >= 6.6.4, < 6.6.18","linux_kernel >= 6.7, < 6.7.6","linux_kernel = 6.8","debian_linux = 10.0"],"patched":["linux_kernel 6.7.6"],"published":"2024-04-17","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:17:24.877","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-26820","references":[{"url":"https://git.kernel.org/stable/c/309ef7de5d840e17607e7d65cbf297c0564433ef","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4d29a58d96a78728cb01ee29ed70dc4bd642f135","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5b10a88f64c0315cfdef45de0aaaa4eef57de0b7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a71302c8638939c45e4ba5a99ea438185fd3f418","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b6d46f306b3964d05055ddaa96b58cd8bd3a472c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bcb7164258d0a9a8aa2e73ddccc2d78f67d2519d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c7441c77c91e47f653104be8353b44a3366a5366","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/309ef7de5d840e17607e7d65cbf297c0564433ef","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/4d29a58d96a78728cb01ee29ed70dc4bd642f135","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/5b10a88f64c0315cfdef45de0aaaa4eef57de0b7","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/a71302c8638939c45e4ba5a99ea438185fd3f418","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/b6d46f306b3964d05055ddaa96b58cd8bd3a472c","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/bcb7164258d0a9a8aa2e73ddccc2d78f67d2519d","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/c7441c77c91e47f653104be8353b44a3366a5366","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00237,"epssPercentile":0.14691,"ingestedAt":"2026-10-15T03:30:12.651Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-05-28T19:59:53.031569Z"},"slug":"CVE-2024-26820","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nhv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed\n\nIf hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER\nhandler cannot perform VF register successfully as the register call\nis received before netvsc_probe is finished. This is because we\nregister register_netdevice_notifier() very early( even before\nvmbus_driver_register()).\nTo fix this, we try to register each such matching VF( if it is visible\nas a netdevice) at the end of netvsc_probe.\n\n## Affected\n\n- `linux_kernel >= 4.19.301, < 4.19.310`\n- `linux_kernel >= 5.4.263, < 5.4.272`\n- `linux_kernel >= 5.10.203, < 5.10.213`\n- `linux_kernel >= 5.15.141, < 5.15.152`\n- `linux_kernel >= 6.1.65, < 6.1.79`\n- `linux_kernel >= 6.6.4, < 6.6.18`\n- `linux_kernel >= 6.7, < 6.7.6`\n- `linux_kernel = 6.8`\n- `debian_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.7.6`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}