CVE-2025-37846
HIGH EPSS 13.1%
Published May 9, 20251y ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
Published May 9, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: arm64: mops: Do not dereference src reg for a set operation The source register is not used for SET* and reading it can result in a UBSAN out-of-bounds array access error, specifically when the MOPS exception is taken from a SET* sequence with XZR (reg 31) as the source. Architecturally this is the only case where a src/dst/size field in the ESR can be reported as 31. Prior to 2de451a329cf662b the code in do_el0_mops() was benign as the use of pt_regs_read_reg() prevented the out-of-bounds access.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
13.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-125 Out-of-bounds Read Memory Safety
Affected Products 3
References 4
- git.kernel.org https://git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5
- git.kernel.org https://git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786
- git.kernel.org https://git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113
- git.kernel.org https://git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17
Remediation
- git.kernel.org https://git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5
- git.kernel.org https://git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786
- git.kernel.org https://git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113
- git.kernel.org https://git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17