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CVE-2024-26820

hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.19.310, 5.4.272, 5.10.213, 5.15.152, 6.1.79, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From 028aa21f9e92536038cabb834c15d08f5c894382 · fixed in bcb7164258d0a9a8aa2e73ddccc2d78f67d2519d; From 997d895fa495fb3421983923219bba93f1a793ee · fixed in c7441c77c91e47f653104be8353b44a3366a5366; From ff6c130e48a79c826cbc2427bd8b34a7592460cc · fixed in 5b10a88f64c0315cfdef45de0aaaa4eef57de0b7; From 97683466e24c801ee4e865ce90ac7e355db2da59 · fixed in b6d46f306b3964d05055ddaa96b58cd8bd3a472c; From 5dd83db613be8e5c5d30efed7f42780e9eb18380 · fixed in 309ef7de5d840e17607e7d65cbf297c0564433ef; From 7350c460f7f48a8653a15c5c90fc9070aaa29535 · fixed in a71302c8638939c45e4ba5a99ea438185fd3f418; From 85520856466ed6bc3b1ccb013cddac70ceb437db · fixed in 4d29a58d96a78728cb01ee29ed70dc4bd642f135; From 85520856466ed6bc3b1ccb013cddac70ceb437db · fixed in 9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2; From 4.19.301 · fixed in 4.19.310; From 5.4.263 · fixed in 5.4.272; From 5.10.203 · fixed in 5.10.213; From 5.15.141 · fixed in 5.15.152; From 6.1.65 · fixed in 6.1.79; From 6.6.4 · fixed in 6.6.18

  • Linux Linux

    6.7

  • KernelLinux

    fixed in 4.19.310; From 4.20.0 · fixed in 5.4.272; From 5.5.0 · fixed in 5.10.213; From 5.11.0 · fixed in 5.15.152; From 5.16.0 · fixed in 6.1.79; From 6.2.0 · fixed in 6.6.18; From 6.7.0 · fixed in 6.7.6

References 8

git.kernel.org