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medium5.5

CVE-2025-37932

In the Linux kernel, the following vulnerability has been resolved: sch_htb: make htb_qlen_notify() idempotent htb_qlen_notify() always deactivates the HTB cla…

Impact

In the Linux kernel, the following vulnerability has been resolved: sch_htb: make htb_qlen_notify() idempotent htb_qlen_notify() always deactivates the HTB class and in fact could trigger a warning if it is already deactivated. Therefore, it is not idempotent and not friendly to its callers, like fq_codel_dequeue(). Let's make it idempotent to ease qdisc_tree_reduce_backlog() callers' life.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
before 5.4.294
from 5.5 before 5.10.241
from 5.11 before 5.15.190
from 5.16 before 6.1.138
from 6.2 before 6.6.90
from 6.7 before 6.12.28
DebianDebian Linux
Version 11.0

References