CVE-2026-31671
Full vulnerability record from the local CVENow database.
Description
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.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-04-24 15:16:46.903000
Last modified
2026-11-06 16:18:06.770000
View original CVE JSON
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"published": "2026-04-24T15:16:46.903",
"lastModified": "2026-11-06T16:18:06.770",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm_user: fix info leak in build_report()\n\nstruct xfrm_user_report is a __u8 proto field followed by a struct\nxfrm_selector which means there is three \"empty\" bytes of padding, but\nthe padding is never zeroed before copying to userspace. Fix that up by\nzeroing the structure before setting individual member variables."
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