PT-2026-51878 · Linux · Linux

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-52984

Mitre

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.

Related Identifiers

CVE-2026-52984

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-52984 · Security Note
• https://git.kernel.org/stable/c/4185701fcce6b426b6c3630b25330dddd9c47b0d · Note
• https://git.kernel.org/stable/c/54b5dbacd00dedffd5e2eed76de1c3839996b5e6 · Note
• https://git.kernel.org/stable/c/74fcd8e127200a50ee22ba2b45c164722bdb9177 · Note
• https://git.kernel.org/stable/c/936a7dd87251f6f3e88983350833edf60fe6a80b · Note
• https://git.kernel.org/stable/c/8450462eaf91d5d2a9e863507b16d18e814baef3 · Note
• https://git.kernel.org/stable/c/39a66e83ea41fe845631eeb8d326953de27d13f9 · Note
• https://git.kernel.org/stable/c/ef9a41b3870fb90577da5b2de5bd140022d4021e · Note
• https://git.kernel.org/stable/c/0f875d52db4c921da610e481b72f03cc82fdcb72 · Note