CVE-2023-53007
tracing: Make sure trace_printk() can output as soon as it can be used
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected e725c731e3bb1e892e7b564c945b121cb41d1087 – < f97eb0ab066133483a65c93eb894748de2f6b598
- affected e725c731e3bb1e892e7b564c945b121cb41d1087 – < b94d7c7654356860dd7719120c7d15ba38b6162a
- affected e725c731e3bb1e892e7b564c945b121cb41d1087 – < 76b2390fdc80c0a8300e5da5b6b62d201b6fe9ce
- affected e725c731e3bb1e892e7b564c945b121cb41d1087 – < de3930a4883ddad2244efd6d349013294c62c75c
- affected e725c731e3bb1e892e7b564c945b121cb41d1087 – < b0af180514edea6c83dc9a299d9f383009c99f25
- affected e725c731e3bb1e892e7b564c945b121cb41d1087 – < 198c83963f6335ca6d690cff067679560f2a3a22
- affected e725c731e3bb1e892e7b564c945b121cb41d1087 – < 3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253
- affected 4.12
- unaffected < 4.12
- unaffected 4.14.305 – ≤ 4.14.*
- unaffected 4.19.272 – ≤ 4.19.*
- unaffected 5.4.231 – ≤ 5.4.*
- unaffected 5.10.166 – ≤ 5.10.*
- unaffected 5.15.91 – ≤ 5.15.*
- unaffected 6.1.9 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (7)
- https://git.kernel.org/stable/c/f97eb0ab066133483a65c93eb894748de2f6b598 (opens in a new tab)
- https://git.kernel.org/stable/c/b94d7c7654356860dd7719120c7d15ba38b6162a (opens in a new tab)
- https://git.kernel.org/stable/c/76b2390fdc80c0a8300e5da5b6b62d201b6fe9ce (opens in a new tab)
- https://git.kernel.org/stable/c/de3930a4883ddad2244efd6d349013294c62c75c (opens in a new tab)
- https://git.kernel.org/stable/c/b0af180514edea6c83dc9a299d9f383009c99f25 (opens in a new tab)
- https://git.kernel.org/stable/c/198c83963f6335ca6d690cff067679560f2a3a22 (opens in a new tab)
- https://git.kernel.org/stable/c/3bb06eb6e9acf7c4a3e1b5bc87aed398ff8e2253 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-53007)Record last updated .