Vulnerability Monitor

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CVE-2023-53007

In the Linux kernel, the following vulnerability has been resolved: tracing: Make sure trace_printk() can output as soon as it can be used Currently trace_printk() can be used as soon as early_trace_init() is called from start_kernel(). But if a crash happens, and "ftrace_dump_on_oops" is set on the kernel command line, all you get will be: [ 0.456075] <idle>-0 0dN.2. 347519us : Unknown type 6 [ 0.456075] <idle>-0 0dN.2. 353141us : Unknown type 6 [ 0.456075] <idle>-0 0dN.2. 358684us : Unknown type 6 This is because the trace_printk() event (type 6) hasn't been registered yet. That gets done via an early_initcall(), which may be early, but not early enough. Instead of registering the trace_printk() event (and other ftrace events, which are not trace events) via an early_initcall(), have them registered at the same time that trace_printk() can be used. This way, if there is a crash before early_initcall(), then the trace_printk()s will actually be useful.

Published

2025-03-27T17:15:49.670

Last Modified

2025-10-30T16:24:07.860

Status

Analyzed

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.14.305 Yes
Operating System linux linux_kernel < 4.19.272 Yes
Operating System linux linux_kernel < 5.4.231 Yes
Operating System linux linux_kernel < 5.10.166 Yes
Operating System linux linux_kernel < 5.15.91 Yes
Operating System linux linux_kernel < 6.1.9 Yes
Operating System linux linux_kernel 6.2 Yes
Operating System linux linux_kernel 6.2 Yes
Operating System linux linux_kernel 6.2 Yes
Operating System linux linux_kernel 6.2 Yes
Operating System linux linux_kernel 6.2 Yes
References