Tracker / CVE-2025-38477
CVE-2025-38477
High 7.8
In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: Fix race condition on qfq_aggregate A race condition can occur when 'agg' is modified in qfq_change_agg (called during qfq_enqueue) while other threads access it concurrently. For example, qfq_dump_class may trigger a NULL dereference, and qfq_delete_class may cause a use-after-free. This patch addresses the issue by: 1. Moved qfq_destroy_class into the critical section. 2. Added sch_tree_lock protection to qfq_dump_class and qfq_dump_class_stats.
Affected products and versions
| debian | debian_linux |
|---|---|
| linux | linux_kernel |
| linux | linux_kernel · 3.8 → 5.4.297 |
| linux | linux_kernel · 5.11 → 5.15.190 |
| linux | linux_kernel · 5.16 → 6.1.147 |
| linux | linux_kernel · 5.5 → 5.10.241 |
| linux | linux_kernel · 6.13 → 6.15.8 |
| linux | linux_kernel · 6.2 → 6.6.100 |
| linux | linux_kernel · 6.7 → 6.12.40 |
Analysis
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