CVE-2024-41005

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Source
https://cve.org/CVERecord?id=CVE-2024-41005
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-41005.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-41005
Downstream
Related
Published
2024-07-12T12:44:40.467Z
Modified
2026-03-13T07:56:07.263223Z
Summary
netpoll: Fix race condition in netpoll_owner_active
Details

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

netpoll: Fix race condition in netpollowneractive

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: netpollsendskb (net/core/netpoll.c:319 net/core/netpoll.c:345 net/core/netpoll.c:393) netpollsendudp (net/core/netpoll.c:?) <snip> value changed: 0x0000000a -> 0xffffffff

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

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

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/41xxx/CVE-2024-41005.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
89c4b442b78bdba388337cc746fe63caba85f46c
Fixed
43c0ca793a18578a0f5b305dd77fcf7ed99f1265
Fixed
efd29cd9c7b8369dfc7bcb34637e6bf1a188aa8e
Fixed
96826b16ef9c6568d31a1f6ceaa266411a46e46c
Fixed
3f1a155950a1685ffd0fd7175b3f671da8771f3d
Fixed
a130e7da73ae93afdb4659842267eec734ffbd57
Fixed
c2e6a872bde9912f1a7579639c5ca3adf1003916

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-41005.json"