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CVE-2026-31671 PUBLISHED

In the Linux kernel, the following vulnerability has been resolved: xfrm_user: fix info leak in build_report() struct xfrm_user_report is a __u8 proto field followed by a struct xfrm_selector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace. Fix that up by zeroing the structure before setting individual member variables.

Affected Products

VendorProductVersions
LinuxLinux*, 6.1.169, 6.6.135
linuxlinux_kernel0, 0, 0

Timeline

References

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