CVE-2025-37938tracing: Verify event formats that have "%*p.."
Updated under an hour ago ()
Does this affect you?
It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: tracing: Verify event formats that have "%*p.." The trace event verifier checks the formats of trace events to make sure that they do not point at memory that is not in the trace event itself or in data that will never be freed. If an event references data that was allocated when the event triggered and that same data is freed before the event is read, then the kernel can crash by reading freed memory. The verifier runs at boot up (or module load) and scans the print formats of the events and checks their arguments to make sure that dereferenced pointers are safe. If the format uses "%*p.." the verifier will ignore it, and that could be dangerous. Cover this case as well. Also add to the sample code a use case of "%*pbl".
- CVSS
- 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 5013f454a352cce8e62162976026a9c472595e42 before 6854c87ac823181c810f8c07489ba543260c0023; 5013f454a352cce8e62162976026a9c472595e42 builds before 4d11fac941d83509be4e6a21038281d6d96da50c; from 5013f454a352cce8e62162976026a9c472595e42 before 03127354027508d076073b020d3070990fd6a958; 5013f454a352cce8e62162976026a9c472595e42 builds before 04b80d45ecfaf780981d6582899e3ab205e4aa08; from 5013f454a352cce8e62162976026a9c472595e42 before c7204fd1758c0caf1938e8a59809a1fdf28a8114; from 5013f454a352cce8e62162976026a9c472595e42 before ea8d7647f9ddf1f81e2027ed305299797299aa03 | CNA record |
linux linux_kernel linux:linux_kernel | from 5.13 before 6.1.136; from 6.2 before 6.6.89; from 6.7 before 6.12.26; from 6.13 before 6.13.11; from 6.14 before 6.14.2 | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/6854c87ac823181c810f8c07489ba543260c0023patch
- https://git.kernel.org/stable/c/4d11fac941d83509be4e6a21038281d6d96da50cpatch
- https://git.kernel.org/stable/c/03127354027508d076073b020d3070990fd6a958patch
- https://git.kernel.org/stable/c/04b80d45ecfaf780981d6582899e3ab205e4aa08patch
- https://git.kernel.org/stable/c/c7204fd1758c0caf1938e8a59809a1fdf28a8114patch
- https://git.kernel.org/stable/c/ea8d7647f9ddf1f81e2027ed305299797299aa03patch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.