CVE-2024-26820hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed
Updated under an hour ago ()
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It affects Linux and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed If hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER handler cannot perform VF register successfully as the register call is received before netvsc_probe is finished. This is because we register register_netdevice_notifier() very early( even before vmbus_driver_register()). To fix this, we try to register each such matching VF( if it is visible as a netdevice) at the end of netvsc_probe.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 028aa21f9e92536038cabb834c15d08f5c894382 before bcb7164258d0a9a8aa2e73ddccc2d78f67d2519d; from 997d895fa495fb3421983923219bba93f1a793ee before c7441c77c91e47f653104be8353b44a3366a5366; from ff6c130e48a79c826cbc2427bd8b34a7592460cc before 5b10a88f64c0315cfdef45de0aaaa4eef57de0b7; from 97683466e24c801ee4e865ce90ac7e355db2da59 before b6d46f306b3964d05055ddaa96b58cd8bd3a472c; from 5dd83db613be8e5c5d30efed7f42780e9eb18380 before 309ef7de5d840e17607e7d65cbf297c0564433ef; from 7350c460f7f48a8653a15c5c90fc9070aaa29535 before a71302c8638939c45e4ba5a99ea438185fd3f418; 85520856466ed6bc3b1ccb013cddac70ceb437db builds before 4d29a58d96a78728cb01ee29ed70dc4bd642f135; 85520856466ed6bc3b1ccb013cddac70ceb437db builds before 9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2; and 6 more ranges | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1.1 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.19.301 before 4.19.310; from 5.4.263 before 5.4.272; from 5.10.203 before 5.10.213; from 5.15.141 before 5.15.152; from 6.1.65 before 6.1.79; from 6.6.4 before 6.6.18; from 6.7 before 6.7.6; 6.8; and 2 more ranges | NVD |
debian debian_linux debian:debian_linux | 10.0 | NVD |
References
- https://git.kernel.org/stable/c/bcb7164258d0a9a8aa2e73ddccc2d78f67d2519dpatch
- https://git.kernel.org/stable/c/c7441c77c91e47f653104be8353b44a3366a5366patch
- https://git.kernel.org/stable/c/5b10a88f64c0315cfdef45de0aaaa4eef57de0b7patch
- https://git.kernel.org/stable/c/b6d46f306b3964d05055ddaa96b58cd8bd3a472cpatch
- https://git.kernel.org/stable/c/309ef7de5d840e17607e7d65cbf297c0564433efpatch
- https://git.kernel.org/stable/c/a71302c8638939c45e4ba5a99ea438185fd3f418patch
- https://git.kernel.org/stable/c/4d29a58d96a78728cb01ee29ed70dc4bd642f135patch
- https://git.kernel.org/stable/c/9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlmailing-list
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlmailing-list
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.