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.
Does this matter?
Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0f875d52db4c921da610e481b72f03cc82fdcb72Patch
- https://git.kernel.org/stable/c/39a66e83ea41fe845631eeb8d326953de27d13f9Patch
- https://git.kernel.org/stable/c/4185701fcce6b426b6c3630b25330dddd9c47b0dPatch
- https://git.kernel.org/stable/c/54b5dbacd00dedffd5e2eed76de1c3839996b5e6Patch
- https://git.kernel.org/stable/c/74fcd8e127200a50ee22ba2b45c164722bdb9177Patch
- https://git.kernel.org/stable/c/8450462eaf91d5d2a9e863507b16d18e814baef3Patch
- https://git.kernel.org/stable/c/936a7dd87251f6f3e88983350833edf60fe6a80bPatch
- https://git.kernel.org/stable/c/ef9a41b3870fb90577da5b2de5bd140022d4021ePatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.