CVE-2025-38177
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
sch_hfsc: make hfsc_qlen_notify() idempotent
hfsc_qlen_notify() is not idempotent either and not friendly to its callers, like fq_codel_dequeue(). Let's make it idempotent to ease qdisc_tree_reduce_backlog() callers' life:
update_vf() decreases cl->cl_nactive, so we can check whether it is non-zero before calling it.
eltree_remove() always removes RB node cl->el_node, but we can use RB_EMPTY_NODE() + RB_CLEAR_NODE() to make it safe.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 959466588aa7f84ccf79ae36a1d89542eaf9aaec < 9a5fd5c2f4d4afdd5e405083ee53e0789ce76956 | affected |
| Linux | Linux | 959466588aa7f84ccf79ae36a1d89542eaf9aaec < 72c61ffbeeb8c50f6d4d70c65d3283aa1bac57a7 | affected |
| Linux | Linux | 959466588aa7f84ccf79ae36a1d89542eaf9aaec < a5efc95a33bd4fcb879250852828cc58c7862970 | affected |
| Linux | Linux | 959466588aa7f84ccf79ae36a1d89542eaf9aaec < 0475c85426b18eccdcb7f9fb58d8f8e9c6c58c87 | affected |
| Linux | Linux | 959466588aa7f84ccf79ae36a1d89542eaf9aaec < 9030a91235ae4845ec71902c3e0cecfc9ed1f2df | affected |
| Linux | Linux | 959466588aa7f84ccf79ae36a1d89542eaf9aaec < d06476714d2819b550e0cc39222347e2c8941c9d | affected |
| Linux | Linux | 959466588aa7f84ccf79ae36a1d89542eaf9aaec < c1175c4ad01dbc9c979d099861fa90a754f72059 | affected |
| Linux | Linux | 959466588aa7f84ccf79ae36a1d89542eaf9aaec < 51eb3b65544c9efd6a1026889ee5fb5aa62da3bb | affected |
| Linux | Linux | 4.14 | affected |
| Linux | Linux | 0 < 4.14 | unaffected |
| Linux | Linux | 5.4.297 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.241 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.190 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.138 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.90 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.28 <= 6.12.* | unaffected |
| Linux | Linux | 6.14.6 <= 6.14.* | unaffected |
| Linux | Linux | 6.15 <= * | unaffected |
Weaknesses
ADP Enrichment
CVE Program Container
Additional References
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://git.kernel.org/stable/c/9a5fd5c2f4d4afdd5e405083ee53e0789ce76956
- https://git.kernel.org/stable/c/72c61ffbeeb8c50f6d4d70c65d3283aa1bac57a7
- https://git.kernel.org/stable/c/a5efc95a33bd4fcb879250852828cc58c7862970
- https://git.kernel.org/stable/c/0475c85426b18eccdcb7f9fb58d8f8e9c6c58c87
- https://git.kernel.org/stable/c/9030a91235ae4845ec71902c3e0cecfc9ed1f2df
- https://git.kernel.org/stable/c/d06476714d2819b550e0cc39222347e2c8941c9d
- https://git.kernel.org/stable/c/c1175c4ad01dbc9c979d099861fa90a754f72059
- https://git.kernel.org/stable/c/51eb3b65544c9efd6a1026889ee5fb5aa62da3bb
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