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Vulnerability · Published Apr 17, 2024 · Assigned by Linux

CVE-2024-26820hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 85.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.82-1DEBIAN-CVE-2024-26820
Debian:13linux6.7.7-1DEBIAN-CVE-2024-26820
Debian:14linux6.7.7-1DEBIAN-CVE-2024-26820
Ubuntu:22.04:LTSlinux5.15.0-112.122UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-aws5.15.0-1063.69UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-aws-6.56.5.0-1023.23~22.04.1UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-gcp5.15.0-1062.70UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1024.26~22.04.1UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-gke5.15.0-1060.66UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1046.53UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-44.44~22.04.1UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-ibm5.15.0-1056.59UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1058.64UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-kvm5.15.0-1060.65UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-110.120UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-44.44.1~22.04.1UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1058.59UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1023.24UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1027.28UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-oracle5.15.0-1061.67UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1026.26~22.04.1UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-raspi5.15.0-1058.61UBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26820
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1017.18~22.04.1UBUNTU-CVE-2024-26820

Affected products (as reported)

VendorProductVersions
Linux Linux 028aa21f9e92536038cabb834c15d08f5c894382 – before bcb7164258d0a9a8aa2e73ddccc2d78f67d2519d997d895fa495fb3421983923219bba93f1a793ee – before c7441c77c91e47f653104be8353b44a3366a5366ff6c130e48a79c826cbc2427bd8b34a7592460cc – before 5b10a88f64c0315cfdef45de0aaaa4eef57de0b797683466e24c801ee4e865ce90ac7e355db2da59 – before b6d46f306b3964d05055ddaa96b58cd8bd3a472c5dd83db613be8e5c5d30efed7f42780e9eb18380 – before 309ef7de5d840e17607e7d65cbf297c0564433ef7350c460f7f48a8653a15c5c90fc9070aaa29535 – before a71302c8638939c45e4ba5a99ea438185fd3f41885520856466ed6bc3b1ccb013cddac70ceb437db – before 4d29a58d96a78728cb01ee29ed70dc4bd642f13585520856466ed6bc3b1ccb013cddac70ceb437db – before 9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2
Linux Linux 6.7

References