CVE-2024-38577: rcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow
Vulnerability summary
CVE-2024-38577 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 17.4% of scored vulnerabilities.
Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 24 · Related 21Timeline
- 19-06-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
17%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.26% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu116 products
- linux< 5.15.0-125.135 | < 6.8.0-40.40
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1072.78 | < 6.8.0-1013.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ edf3775f0ad66879796f594983163f672c4bf1a2, < 17c43211d45f13d1badea3942b76bf16bcc49281 | ≥ edf3775f0ad66879796f594983163f672c4bf1a2, < af7b560c88fb420099e29890aa682b8a3efc8784 | ≥ edf3775f0ad66879796f594983163f672c4bf1a2, < 08186d0c5fb64a1cc4b43e009314ee6b173ed222 | ≥ edf3775f0ad66879796f594983163f672c4bf1a2, < 32d988f48ed287e676a29a15ac30701c35849aec | ≥ edf3775f0ad66879796f594983163f672c4bf1a2, < 6593d857ce5b5b802fb73d8091ac9c84b92c1697 | ≥ edf3775f0ad66879796f594983163f672c4bf1a2, < 1a240e138071b25944ded0f5b3e357aa99fabcb7 | ≥ edf3775f0ad66879796f594983163f672c4bf1a2, < cc5645fddb0ce28492b15520306d092730dffa48 | 5.8
- linux_kernel≥ 5.8, < 5.10.226 | ≥ 5.11, < 5.15.167 | ≥ 5.16, < 6.1.93 | ≥ 6.2, < 6.6.33 | ≥ 6.7, < 6.8.12 | ≥ 6.9, < 6.9.3
Debian1 product
- linux< 6.1.94-1 | < 6.8.12-1
3 vendors · 119 products
