CVE-2024-41005
Linux Kernel KCSAN Data-Race Vulnerability in Netpoll Owner Active
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.
INFO
Published Date :
July 12, 2024, 1:15 p.m.
Last Modified :
Nov. 21, 2024, 9:32 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-41005.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2024-41005 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-41005 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/3f1a155950a1685ffd0fd7175b3f671da8771f3d Added Reference https://git.kernel.org/stable/c/43c0ca793a18578a0f5b305dd77fcf7ed99f1265 Added Reference https://git.kernel.org/stable/c/96826b16ef9c6568d31a1f6ceaa266411a46e46c Added Reference https://git.kernel.org/stable/c/a130e7da73ae93afdb4659842267eec734ffbd57 Added Reference https://git.kernel.org/stable/c/c2e6a872bde9912f1a7579639c5ca3adf1003916 Added Reference https://git.kernel.org/stable/c/efd29cd9c7b8369dfc7bcb34637e6bf1a188aa8e -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 12, 2024
Action Type Old Value New Value Added 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. Added Reference kernel.org https://git.kernel.org/stable/c/43c0ca793a18578a0f5b305dd77fcf7ed99f1265 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/efd29cd9c7b8369dfc7bcb34637e6bf1a188aa8e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/96826b16ef9c6568d31a1f6ceaa266411a46e46c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3f1a155950a1685ffd0fd7175b3f671da8771f3d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a130e7da73ae93afdb4659842267eec734ffbd57 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c2e6a872bde9912f1a7579639c5ca3adf1003916 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-41005 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-41005
weaknesses.