Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.7, < 6.12.24 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/43267d934eacff6c70e15545d804ebbcab8a0bf5Patch
- https://git.kernel.org/stable/c/5f6022a74147675124b781fdc056b291850e7786Patch
- https://git.kernel.org/stable/c/a13bfa4fe0d6949cea14718df2d1fe84c38cd113Patch
- https://git.kernel.org/stable/c/eec737e17e5567e08148550a7f1d94d495b9fb17Patch
FAQ
What is CVE-2025-37846?
CVE-2025-37846 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 ...
How severe is CVE-2025-37846?
CVE-2025-37846 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-37846?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.