CVE-2026-52984
Published Jun 24, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: fix queue limit check to include reordered packets The queue limit check in netem_enqueue() uses q->t_len which only counts packets in the internal tfifo. Packets placed in sch->q by the reorder path (__qdisc_enqueue_head) are not counted, allowing the total queue occupancy to exceed sch->limit under reordering. Include sch->q.qlen in the limit check.
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EPSS — Exploit Prediction
0.0013
Probability of exploitation
0.03%
Percentile rank
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
References
Other References
https://git.kernel.org/stable/c/0f875d52db4c921da610e481b72f03cc82fdcb72
https://git.kernel.org/stable/c/39a66e83ea41fe845631eeb8d326953de27d13f9
https://git.kernel.org/stable/c/4185701fcce6b426b6c3630b25330dddd9c47b0d
https://git.kernel.org/stable/c/54b5dbacd00dedffd5e2eed76de1c3839996b5e6
https://git.kernel.org/stable/c/74fcd8e127200a50ee22ba2b45c164722bdb9177
https://git.kernel.org/stable/c/8450462eaf91d5d2a9e863507b16d18e814baef3
https://git.kernel.org/stable/c/936a7dd87251f6f3e88983350833edf60fe6a80b
https://git.kernel.org/stable/c/ef9a41b3870fb90577da5b2de5bd140022d4021e
Frequently Asked Questions
What is CVE-2026-52984? +
In the Linux kernel, the following vulnerability has been resolved:
net/sched: netem: fix queue limit check to include reordered packets
The queue limit check in netem_enqueue() uses q->t_len which only
counts packets in the internal tfifo. Packets placed in sch->q by
the reorder path (__qdisc_enqueue_head) are not counted, allowing
the total queue occupancy to exceed sch->limit under reordering.
Include sch->q.qlen in the limit check.
How do I check if I'm vulnerable to CVE-2026-52984? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.