Medium 5.5Published Sep 13, 2024

CVE-2024-46681pktgen: use cpus_read_lock() in pg_net_init()

Updated under an hour ago (Oct 27, 2026, 5:50 PM ET)

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It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: pktgen: use cpus_read_lock() in pg_net_init() I have seen the WARN_ON(smp_processor_id() != cpu) firing in pktgen_thread_worker() during tests. We must use cpus_read_lock()/cpus_read_unlock() around the for_each_online_cpu(cpu) loop. While we are at it use WARN_ON_ONCE() to avoid a possible syslog flood.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7eed5b3115ce9e057bf64c3f6be9ea72f8298e4e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5f5f7366dda8ae870e8305d6e7b3c0c2686cd2cf; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 979b581e4c69257acab1af415ddad6b2d78a2fa5	CNA record
linux linux_kernel linux:linux_kernel	from 2.6.12 before 6.10.8; 6.11; 6.11; 6.11; 6.11; 6.11	NVD

References

References

https://git.kernel.org/stable/c/7eed5b3115ce9e057bf64c3f6be9ea72f8298e4e
https://git.kernel.org/stable/c/5f5f7366dda8ae870e8305d6e7b3c0c2686cd2cf	patch
https://git.kernel.org/stable/c/979b581e4c69257acab1af415ddad6b2d78a2fa5	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.