CVE-2026-52984
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJun 24, 2026
First seenJun 24, 2026
How to fix
Update
- linux linux_kernel5.5, 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10 or later
Patches
- git.kernel.org/stable/c/0f875d52db4c921da610e481b72f03cc82fdcb72
- git.kernel.org/stable/c/39a66e83ea41fe845631eeb8d326953de27d13f9
- git.kernel.org/stable/c/4185701fcce6b426b6c3630b25330dddd9c47b0d
- git.kernel.org/stable/c/54b5dbacd00dedffd5e2eed76de1c3839996b5e6
- git.kernel.org/stable/c/74fcd8e127200a50ee22ba2b45c164722bdb9177
- git.kernel.org/stable/c/8450462eaf91d5d2a9e863507b16d18e814baef3
- git.kernel.org/stable/c/936a7dd87251f6f3e88983350833edf60fe6a80b
- git.kernel.org/stable/c/ef9a41b3870fb90577da5b2de5bd140022d4021e
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.4.288 ≤ v < 5.5, 5.10.232 ≤ v < 5.10.258, 5.15.175 ≤ v < 5.15.209, 6.1.121 ≤ v < 6.1.175, 6.6.67 ≤ v < 6.6.141, 6.12.6 ≤ v < 6.12.91, 6.13.1 ≤ v < 6.18.33, 6.19 ≤ v < 7.0.10, 6.13, 7.1 | 5.5, 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10 |
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