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

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于如果卸载并重新加载 hv_netvsc 驱动程序，则 NET_DEVICE_REGISTER 处理程序无法成功执行 VF 注册，因为在 netvsc_probe 完成之前收到注册调用。

AI Predicted 3.3 Difficulty: Theoretical EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 24

VendorProduct Version RangeStatus
Linux Linux 028aa21f9e92536038cabb834c15d08f5c894382< bcb7164258d0a9a8aa2e73ddccc2d78f67d2519d affected
997d895fa495fb3421983923219bba93f1a793ee< c7441c77c91e47f653104be8353b44a3366a5366 affected
ff6c130e48a79c826cbc2427bd8b34a7592460cc< 5b10a88f64c0315cfdef45de0aaaa4eef57de0b7 affected
97683466e24c801ee4e865ce90ac7e355db2da59< b6d46f306b3964d05055ddaa96b58cd8bd3a472c affected
5dd83db613be8e5c5d30efed7f42780e9eb18380< 309ef7de5d840e17607e7d65cbf297c0564433ef affected
7350c460f7f48a8653a15c5c90fc9070aaa29535< a71302c8638939c45e4ba5a99ea438185fd3f418 affected
85520856466ed6bc3b1ccb013cddac70ceb437db< 4d29a58d96a78728cb01ee29ed70dc4bd642f135 affected
85520856466ed6bc3b1ccb013cddac70ceb437db< 9cae43da9867412f8bd09aee5c8a8dc5e8dc3dc2 affected
… +16 more rows
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I. Basic Information for CVE-2024-26820

Vulnerability Information
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Vulnerability Title
hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于如果卸载并重新加载 hv_netvsc 驱动程序，则 NET_DEVICE_REGISTER 处理程序无法成功执行 VF 注册，因为在 netvsc_probe 完成之前收到注册调用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 028aa21f9e92536038cabb834c15d08f5c894382 ~ bcb7164258d0a9a8aa2e73ddccc2d78f67d2519d -
Linux Linux 6.7 -

II. Public POCs for CVE-2024-26820

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III. Intelligence Information for CVE-2024-26820

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Mailing List Discussions for CVE-2024-26820 (2)

Other References for CVE-2024-26820 (6)

Same Patch Batch · Linux · 2024-04-17 · 100 CVEs total

CVE-2024-26853 9.8 CRITICAL igc: avoid returning frame twice in XDP_REDIRECT
CVE-2024-26877 9.8 CRITICAL crypto: xilinx - call finalize with bh disabled
CVE-2024-26828 9.4 CRITICAL cifs: fix underflow in parse_server_interfaces()
CVE-2024-26856 8.8 HIGH net: sparx5: Fix use after free inside sparx5_del_mact_entry
CVE-2024-26822 8.7 HIGH smb: client: set correct id, uid and cruid for multiuser automounts
CVE-2024-26830 8.4 HIGH i40e: Do not allow untrusted VF to remove administratively set MAC
CVE-2024-26890 7.8 HIGH Bluetooth: btrtl: fix out of bounds memory access
CVE-2024-26883 7.8 HIGH bpf: Fix stackmap overflow check on 32-bit arches
CVE-2024-26824 7.8 HIGH crypto: algif_hash - Remove bogus SGL free on zero-length error path
CVE-2024-26870 7.8 HIGH NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102
CVE-2024-26823 7.8 HIGH irqchip/gic-v3-its: Restore quirk probing for ACPI-based systems
CVE-2024-26869 7.8 HIGH f2fs: fix to truncate meta inode pages forcely
CVE-2024-26911 7.8 HIGH drm/buddy: Fix alloc_range() error handling code
CVE-2024-26838 7.8 HIGH RDMA/irdma: Fix KASAN issue with tasklet
CVE-2024-26865 7.8 HIGH rds: tcp: Fix use-after-free of net in reqsk_timer_handler().
CVE-2024-26864 7.8 HIGH tcp: Fix refcnt handling in __inet_hash_connect().
CVE-2024-26872 7.8 HIGH RDMA/srpt: Do not register event handler until srpt device is fully setup
CVE-2024-26895 7.8 HIGH wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces
CVE-2024-26898 7.8 HIGH aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
CVE-2024-26852 7.8 HIGH net/ipv6: avoid possible UAF in ip6_route_mpath_notify()

Showing top 20 of 100 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26820

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