CVE-2025-37798
In the Linux kernel, the following vulnerability has been resolved:
codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
After making all ->qlen_notify() callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fq_codel_dequeue() and codel_qdisc_dequeue().
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 3.5 | 5.4.297 |
| linux / linux_kernel | 5.5 | 5.10.241 |
| linux / linux_kernel | 5.11 | 5.15.190 |
| linux / linux_kernel | 5.16 | 6.1.135 |
| linux / linux_kernel | 6.2 | 6.6.88 |
| linux / linux_kernel | 6.7 | 6.12.24 |
| linux / linux_kernel | 6.13 | 6.13.12 |
| linux / linux_kernel | 6.14 | 6.14.3 |
| linux / linux_kernel | 6.15-rc1 | 6.15-rc1.x |
| debian / debian_linux | 11.0 | 11.0.x |
- https://git.kernel.org/stable/c/2f9761a94bae33d26e6a81b31b36e7d776d93dc1
- https://git.kernel.org/stable/c/342debc12183b51773b3345ba267e9263bdfaaef
- https://git.kernel.org/stable/c/4d55144b12e742404bb3f8fee6038bafbf45619d
- https://git.kernel.org/stable/c/7a742a9506849d1c1aa71e36c89855ceddc7d58e
- https://git.kernel.org/stable/c/829c49b6b2ff45b043739168fd1245e4e1a91a30
- https://git.kernel.org/stable/c/a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31
- https://git.kernel.org/stable/c/cc71a757da78dd4aa1b4a9b19cb011833730ccf2
- https://git.kernel.org/stable/c/e73c838c80dccb9e4f19becc11d9f3cb4a27d483
- https://git.kernel.org/stable/c/eda741fe155ddf5ecd2dd3bfbd4fc3c0c7dbb450
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
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