CVE-2024-46681: pktgen: use cpus_read_lock() in pg_net_init()
First published: Fri Sep 13 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=2.6.12<6.10.8 | |
| Linux Linux kernel | =6.11-rc1 | |
| Linux Linux kernel | =6.11-rc2 | |
| Linux Linux kernel | =6.11-rc3 | |
| Linux Linux kernel | =6.11-rc4 | |
| Linux Linux kernel | =6.11-rc5 | |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.115-1<=6.1.119-1 | 6.11.10-1 6.12.5-1 |
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Reference Links
- https://git.kernel.org/stable/c/5f5f7366dda8ae870e8305d6e7b3c0c2686cd2cf
- https://git.kernel.org/stable/c/979b581e4c69257acab1af415ddad6b2d78a2fa5
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-46681
- https://nvd.nist.gov/vuln/detail/CVE-2024-46681
- https://launchpad.net/bugs/cve/CVE-2024-46681
- https://security-tracker.debian.org/tracker/CVE-2024-46681
- https://ubuntu.com/security/CVE-2024-46681
- https://git.kernel.org/linus/979b581e4c69257acab1af415ddad6b2d78a2fa5
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