CVE - CVE-2023-53007

CVE-ID
CVE-2023-53007	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/198c83963f6335ca6d690cff067679560f2a3a22 URL:https://git.kernel.org/stable/c/198c83963f6335ca6d690cff067679560f2a3a22 MISC:https://git.kernel.org/stable/c/3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253 URL:https://git.kernel.org/stable/c/3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253 MISC:https://git.kernel.org/stable/c/76b2390fdc80c0a8300e5da5b6b62d201b6fe9ce URL:https://git.kernel.org/stable/c/76b2390fdc80c0a8300e5da5b6b62d201b6fe9ce MISC:https://git.kernel.org/stable/c/b0af180514edea6c83dc9a299d9f383009c99f25 URL:https://git.kernel.org/stable/c/b0af180514edea6c83dc9a299d9f383009c99f25 MISC:https://git.kernel.org/stable/c/b94d7c7654356860dd7719120c7d15ba38b6162a URL:https://git.kernel.org/stable/c/b94d7c7654356860dd7719120c7d15ba38b6162a MISC:https://git.kernel.org/stable/c/de3930a4883ddad2244efd6d349013294c62c75c URL:https://git.kernel.org/stable/c/de3930a4883ddad2244efd6d349013294c62c75c MISC:https://git.kernel.org/stable/c/f97eb0ab066133483a65c93eb894748de2f6b598 URL:https://git.kernel.org/stable/c/f97eb0ab066133483a65c93eb894748de2f6b598
Assigning CNA
kernel.org
Date Record Created
20250327	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250327)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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