cve.bz

CVE-2025-40126

no score yetEPSS 0.2%

In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC The referenced commit introduced exception handlers on user-space memory references in copy_from_user and copy_to_user. These handlers return from the respective function and calculate the remaining bytes left to copy using the current register contents. This commit fixes a couple of bad calculations. This will fix the return value of copy_from_user and copy_to_user in the faulting case. The behaviour of memcpy stays unchanged.

EPSS
0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)
Published
Modified
Record from
the NVD, synced

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