CVE-2024-38577

rcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow

State: Published
Severity: 7.0 High
Published: Jun 19, 2024
Updated: Aug 5, 2026
Reserved: Jun 18, 2024

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.

Scores

CVSS	Score	Vector	Source
3.1	7.0 High	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	edf3775f0ad66879796f594983163f672c4bf1a2 to before 17c43211d45f13d1badea3942b76bf16bcc49281Affected edf3775f0ad66879796f594983163f672c4bf1a2 to before af7b560c88fb420099e29890aa682b8a3efc8784Affected edf3775f0ad66879796f594983163f672c4bf1a2 to before 08186d0c5fb64a1cc4b43e009314ee6b173ed222Affected edf3775f0ad66879796f594983163f672c4bf1a2 to before 32d988f48ed287e676a29a15ac30701c35849aecAffected edf3775f0ad66879796f594983163f672c4bf1a2 to before 6593d857ce5b5b802fb73d8091ac9c84b92c1697Affected edf3775f0ad66879796f594983163f672c4bf1a2 to before 1a240e138071b25944ded0f5b3e357aa99fabcb7Affected edf3775f0ad66879796f594983163f672c4bf1a2 to before cc5645fddb0ce28492b15520306d092730dffa48Affected
LinuxLinux	5.8Affected before 5.8Not affected 5.10.226 through 5.10.Not affected 5.15.167 through 5.15.Not affected 6.1.93 through 6.1.Not affected 6.6.33 through 6.6.Not affected 6.8.12 through 6.8.Not affected 6.9.3 through 6.9.Not affected 6.10 and laterNot affected

Product

Versions

LinuxLinux

edf3775f0ad66879796f594983163f672c4bf1a2 to before 17c43211d45f13d1badea3942b76bf16bcc49281Affected
edf3775f0ad66879796f594983163f672c4bf1a2 to before af7b560c88fb420099e29890aa682b8a3efc8784Affected
edf3775f0ad66879796f594983163f672c4bf1a2 to before 08186d0c5fb64a1cc4b43e009314ee6b173ed222Affected
edf3775f0ad66879796f594983163f672c4bf1a2 to before 32d988f48ed287e676a29a15ac30701c35849aecAffected
edf3775f0ad66879796f594983163f672c4bf1a2 to before 6593d857ce5b5b802fb73d8091ac9c84b92c1697Affected
edf3775f0ad66879796f594983163f672c4bf1a2 to before 1a240e138071b25944ded0f5b3e357aa99fabcb7Affected
edf3775f0ad66879796f594983163f672c4bf1a2 to before cc5645fddb0ce28492b15520306d092730dffa48Affected

LinuxLinux

5.8Affected
before 5.8Not affected
5.10.226 through 5.10.*Not affected
5.15.167 through 5.15.*Not affected
6.1.93 through 6.1.*Not affected
6.6.33 through 6.6.*Not affected
6.8.12 through 6.8.*Not affected
6.9.3 through 6.9.*Not affected
6.10 and laterNot affected

References

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