rcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: rcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow There is a possibility of buffer overflow in show_rcu_tasks_trace_gp_kthread() if counters, passed to sprintf() are huge. Counter numbers, needed for this are unrealistically high, but buffer overflow is still possible. Use snprintf() with buffer size instead of sprintf(). Found by Linux Verification Center (linuxtesting.org) with SVACE.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.8 and later | 5.10.226, 5.15.167, 6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 5.8 and later Fixed in 5.10.226, 5.15.167, 6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.8 to before 5.10.226; 5.11 to before 5.15.167; 5.16 to before 6.1.93; 6.2 to before 6.6.33; 6.7 to before 6.8.12; 6.9 to before 6.9.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.8 to before 5.10.226; 5.11 to before 5.15.167; 5.16 to before 6.1.93; 6.2 to before 6.6.33; 6.7 to before 6.8.12; 6.9 to before 6.9.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.226, 5.15.167, 6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-38577
- 2026-10-03 Alias added: GHSA-wqp9-f35v-h4f9
References
Patch 7
- https://git.kernel.org/stable/c/17c43211d45f13d1badea3942b76bf16bcc49281
- https://git.kernel.org/stable/c/af7b560c88fb420099e29890aa682b8a3efc8784
- https://git.kernel.org/stable/c/08186d0c5fb64a1cc4b43e009314ee6b173ed222
- https://git.kernel.org/stable/c/32d988f48ed287e676a29a15ac30701c35849aec
- https://git.kernel.org/stable/c/6593d857ce5b5b802fb73d8091ac9c84b92c1697
- https://git.kernel.org/stable/c/1a240e138071b25944ded0f5b3e357aa99fabcb7
- https://git.kernel.org/stable/c/cc5645fddb0ce28492b15520306d092730dffa48
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-38577 · CVE Program
- CVE-2024-38577 · NVD
- FIRST EPSS
- GHSA-wqp9-f35v-h4f9 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-38577 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences