cbcvebase.
CVE-2025-37938
published 2025-05-20

CVE-2025-37938: In the Linux kernel, the following vulnerability has been resolved: tracing: Verify event formats that have "%*p.." The trace event verifier checks the formats…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.17%
6.7th percentile
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".

Affected

34 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.137-1 (bookworm)linux 6.1.137-1 (bookworm)
debianlinux-6.1< linux 6.1.137-1 (bookworm)linux 6.1.137-1 (bookworm)
linuxlinux
linuxlinux>= 5013f454a352cce8e62162976026a9c472595e42 < 6854c87ac823181c810f8c07489ba543260c00236854c87ac823181c810f8c07489ba543260c0023
linuxlinux>= 5013f454a352cce8e62162976026a9c472595e42 < 4d11fac941d83509be4e6a21038281d6d96da50c4d11fac941d83509be4e6a21038281d6d96da50c
linuxlinux>= 5013f454a352cce8e62162976026a9c472595e42 < 03127354027508d076073b020d3070990fd6a95803127354027508d076073b020d3070990fd6a958
linuxlinux>= 5013f454a352cce8e62162976026a9c472595e42 < 04b80d45ecfaf780981d6582899e3ab205e4aa0804b80d45ecfaf780981d6582899e3ab205e4aa08
linuxlinux>= 5013f454a352cce8e62162976026a9c472595e42 < c7204fd1758c0caf1938e8a59809a1fdf28a8114c7204fd1758c0caf1938e8a59809a1fdf28a8114
linuxlinux>= 5013f454a352cce8e62162976026a9c472595e42 < ea8d7647f9ddf1f81e2027ed305299797299aa03ea8d7647f9ddf1f81e2027ed305299797299aa03
linuxlinux_kernel>= 0 < 6.1.137-16.1.137-1
linuxlinux_kernel>= 0 < 6.12.27-16.12.27-1
linuxlinux_kernel>= 0 < 6.12.27-16.12.27-1
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 0 < 6.14.0-22.226.14.0-22.22
linuxlinux_kernel>= 5.13 < 6.1.1366.1.136
linuxlinux_kernel>= 6.13 < 6.13.116.13.11
linuxlinux_kernel>= 6.14 < 6.14.26.14.2
linuxlinux_kernel>= 6.2 < 6.6.896.6.89
linuxlinux_kernel>= 6.7 < 6.12.266.12.26
msrcazl3_kernel_6.6.85.1-4_on_azure_linux_3.0
msrcazl3_kernel_6.6.92.2-1_on_azure_linux_3.0
msrccbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_msrc7.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu3.2LOW
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