CVE-2025-38083

Published Jun 20, 2025

Last updated 8 days ago

CVSS high 7.8

Overview

Description
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.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD status
Modified
Products
linux_kernel, debian_linux

Risk scores

CVSS 3.1

Type
Primary
Base score
4.7
Impact score
3.6
Exploitability score
1
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

nvd@nist.gov
CWE-362

Social media

Hype score
Not currently trending

  1. 🔐 CRITICAL SECURITY UPDATE: #SUSE has released Live Patch 10 for SLE 15 SP6 to address four severe Linux kernel vulnerabilities (CVE-2025-38079, CVE-2025-38083, CVE-2025-38494, CVE-2025-38495). Read more:👉 https://t.co/5YM9f2Q65j #Security https://t.co/uOIWxyLxDi

    @Cezar_H_Linux

    22 Aug 2025

    30 Impressions

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  2. URGENT: Patch #SUSE SLE 15 SP6 NOW. Live Patch 11 fixes 4 critical kernel vulnerabilities (CVE-2025-38494, CVE-2025-38495, CVE-2025-38079, CVE-2025-38083) with CVSS scores up to 8.5. Don't risk a breach. Read more:👉 https://t.co/Inku2xAAwA #Security https://t.co/hkVOvbNo6c

    @Cezar_H_Linux

    22 Aug 2025

    42 Impressions

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  3. URGENT: #SUSE releases critical kernel security patch for SLE 15 SP6 / openSUSE Leap 15.6. Patches 4 vulnerabilities: ✅ CVE-2025-38494 (CVSS 8.5) ✅ CVE-2025-38495 (CVSS 8.5) ✅ CVE-2025-38079 ✅ CVE-2025-38083 Read more: 👉 https://t.co/anKbMUMkxS https://t.co/F367XNvS0u

    @Cezar_H_Linux

    21 Aug 2025

    18 Impressions

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  4. URGENT: #SUSE kernel patch mitigates: ✅ CVE-2025-38494 (HID bypass). ✅ CVE-2025-38083 (net-sched exploit). Install: zypper in -t patch [ID]. Read more: 👉https://t.co/aqzgsXXHrT #Security https://t.co/qhfFQDmtWd

    @Cezar_H_Linux

    18 Aug 2025

    10 Impressions

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  5. 🚨 Breaking: #Ubuntu 24.04/22.04 LTS kernel vulnerabilities (CVE-2025-38083, CVE-2025-37797) allow RCE via network subsystem. ⏱️ Low-latency environments at HIGH risk! Read more: 👉 https://t.co/eHy3mURBuh https://t.co/ahk9WPkIdp

    @Cezar_H_Linux

    1 Aug 2025

    32 Impressions

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  6. CVE-2025-38083 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, whenev… https://t.co/Ngz1D0iOB0

    @CVEnew

    20 Jun 2025

    375 Impressions

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  7. CVE-2025-38083 Race Condition in Linux Kernel net_sched PRIO Queueing Discipline https://t.co/QD502mMmoz

    @VulmonFeeds

    20 Jun 2025

    43 Impressions

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Configurations

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References

Sources include official advisories and independent security research.