CVE-2025-38083 (GCVE-0-2025-38083)

Vulnerability from cvelistv5 – Published: 2025-06-20 11:21 – Updated: 2026-05-12 12:04
VLAI
Title
net_sched: prio: fix a race in prio_tune()
Summary
In the Linux kernel, the following vulnerability has been resolved: net_sched: prio: fix a race in prio_tune() Gerrard Tai reported a race condition in PRIO, whenever SFQ perturb timer fires at the wrong time. The race is as follows: CPU 0 CPU 1 [1]: lock root [2]: qdisc_tree_flush_backlog() [3]: unlock root | | [5]: lock root | [6]: rehash | [7]: qdisc_tree_reduce_backlog() | [4]: qdisc_put() This can be abused to underflow a parent's qlen. Calling qdisc_purge_queue() instead of qdisc_tree_flush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 , < 53d11560e957d53ee87a0653d258038ce12361b7 (git)
Affected: 7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 , < 4483d8b9127591c60c4eb789d6cab953bc4522a9 (git)
Affected: 7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 , < 20f68e6a9e41693cb0e55e5b9ebbcb40983a4b8f (git)
Affected: 7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 , < 3aaa7c01cf19d9b9bb64b88b65c3a6fd05da2eb4 (git)
Affected: 7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 , < 46c15c9d0f65c9ba857d63f53264f4b17e8a715f (git)
Affected: 7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 , < e3f6745006dc9423d2b065b90f191cfa11b1b584 (git)
Affected: 7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 , < 93f9eeb678d4c9c1abf720b3615fa8299a490845 (git)
Affected: 7b8e0b6e659983154c8d7e756cdb833d89a3d4d7 , < d35acc1be3480505b5931f17e4ea9b7617fea4d3 (git)
Create a notification for this product.
Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.4.295 , ≤ 5.4.* (semver)
Unaffected: 5.10.239 , ≤ 5.10.* (semver)
Unaffected: 5.15.186 , ≤ 5.15.* (semver)
Unaffected: 6.1.142 , ≤ 6.1.* (semver)
Unaffected: 6.6.94 , ≤ 6.6.* (semver)
Unaffected: 6.12.34 , ≤ 6.12.* (semver)
Unaffected: 6.15.3 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.