CVE-2024-41005

MediumCVSS 4.7/10Last modified Oct 15, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

netpoll: Fix race condition in netpoll_owner_active

KCSAN detected a race condition in netpoll:

BUG: KCSAN: data-race in net_rx_action / netpoll_send_skb write (marked) to 0xffff8881164168b0 of 4 bytes by interrupt on cpu 10: net_rx_action (./include/linux/netpoll.h:90 net/core/dev.c:6712 net/core/dev.c:6822) <snip> read to 0xffff8881164168b0 of 4 bytes by task 1 on cpu 2: netpoll_send_skb (net/core/netpoll.c:319 net/core/netpoll.c:345 net/core/netpoll.c:393) netpoll_send_udp (net/core/netpoll.c:?) <snip> value changed: 0x0000000a -> 0xffffffff

This happens because netpoll_owner_active() needs to check if the current CPU is the owner of the lock, touching napi->poll_owner non atomically. The ->poll_owner field contains the current CPU holding the lock.

Use an atomic read to check if the poll owner is the current CPU.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-362

Affected software

VendorProductVersions
LinuxLinux>= 89c4b442b78bdba388337cc746fe63caba85f46c, < 43c0ca793a18578a0f5b305dd77fcf7ed99f1265; >= 89c4b442b78bdba388337cc746fe63caba85f46c, < efd29cd9c7b8369dfc7bcb34637e6bf1a188aa8e; >= 89c4b442b78bdba388337cc746fe63caba85f46c, < 96826b16ef9c6568d31a1f6ceaa266411a46e46c; >= 89c4b442b78bdba388337cc746fe63caba85f46c, < 3f1a155950a1685ffd0fd7175b3f671da8771f3d; >= 89c4b442b78bdba388337cc746fe63caba85f46c, < a130e7da73ae93afdb4659842267eec734ffbd57; >= 89c4b442b78bdba388337cc746fe63caba85f46c, < c2e6a872bde9912f1a7579639c5ca3adf1003916
LinuxLinux4.10
SiemensRUGGEDCOM RST2428P< V3.1
SiemensSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family—
SiemensSCALANCE XCM-/XRM-/XCH-/XRH-300 family< V3.1
SiemensSIMATIC S7-1500 TM MFP - GNU/Linux subsystem< V1.1.1

References

Timeline

Published
Jul 12, 2024
Last modified
Oct 15, 2026
NVD status
Modified

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CVE-2024-41005: Medium severity, CVSS 4.7 | Vulnix