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 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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | - | 5.4.294 |
| linux / linux_kernel | 5.5 | 5.10.241 |
| linux / linux_kernel | 5.11 | 5.15.190 |
| linux / linux_kernel | 5.16 | 6.1.138 |
| linux / linux_kernel | 6.2 | 6.6.90 |
| linux / linux_kernel | 6.7 | 6.12.28 |
| linux / linux_kernel | 6.13 | 6.14.6 |
| linux / linux_kernel | 6.15-rc1 | 6.15-rc1.x |
| debian / debian_linux | 11.0 | 11.0.x |
- https://git.kernel.org/stable/c/0a188c0e197383683fd093ab1ea6ce9a5869a6ea
- https://git.kernel.org/stable/c/32ae12ce6a9f6bace186ca7335220ff59b6cc3cd
- https://git.kernel.org/stable/c/5ba8b837b522d7051ef81bacf3d95383ff8edce5
- https://git.kernel.org/stable/c/73cf6af13153d62f9b76eff422eea79dbc70f15e
- https://git.kernel.org/stable/c/967955c9e57f8eebfccc298037d4aaf3d42bc1c9
- https://git.kernel.org/stable/c/a61f1b5921761fbaf166231418bc1db301e5bf59
- https://git.kernel.org/stable/c/bbbf5e0f87078b715e7a665d662a2c0e77f044ae
- https://git.kernel.org/stable/c/e6b45f4de763b00dc1c55e685e2dd1aaf525d3c1
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
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