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Review reviewHigh

CVE-2025-22069

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: riscv: fgraph: Fix stack layout to match __arch_ftrace_regs argument of ftrace_return_to_handler Naresh Kamboju reported a "Bad frame pointer" kernel warning while running LTP trace ftrace_stress_test.sh in riscv. We can reproduce the same issue with the following command: ``` $ cd /sys/kernel/debug/tracing $ echo 'f:myprobe do_nanosleep%return args1=$retval' > dynamic_events $ echo 1 > events/fprobes/enable $ echo 1 > tracing_on $ sleep 1 ``` And we can get the following kernel warning: [ 127.692888] ------------[ cut here...

CVSS
7.8
EPSS
0.20%
9.61% percentile
CISA KEV
Not listed
Published
2025.04.17
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.20%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: riscv: fgraph: Fix stack layout to match __arch_ftrace_regs argument of ftrace_return_to_handler Naresh Kamboju reported a "Bad frame pointer" kernel warning while running LTP trace ftrace_stress_test.sh in riscv. We can reproduce the same issue with the following command: ``` $ cd /sys/kernel/debug/tracing $ echo 'f:myprobe do_nanosleep%return args1=$retval' > dynamic_events $ echo 1 > events/fprobes/enable $ echo 1 > tracing_on $ sleep 1 ``` And we can get the following kernel warning: [ 127.692888] ------------[ cut here...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 33d4e904e24d14ff0fbc528b657ddc7c7b636e6a < 7ed384db061a264bd806898f7ccab9b98b591488, >= a3ed4157b7d89800a0008de0c9e46a438a5c3745 < 78b39c587b8f6c69140177108f9c08a75b1c7c37, >= a3ed4157b7d89800a0008de0c9e46a438a5c3745 < 67a5ba8f742f247bc83e46dd2313c142b1383276, >= 6.12.75 < 6.12.92, >= 6.14, >= 6.14 < 6.14.2
Fixed versions
6.14.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-668