CVE-2026-31671
xfrm_user: fix info leak in build_report()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 24, 2026 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 < d27c02eec529f78055a46a5c9e6c62684382b2d8 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 < 716c546e88cfe49d841658240e10cb57bc50a2cc 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 < 0616314b3b34f24cbb91da8c6bd8bcdc4c8592f9 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 < e0c8542c3d097ed4205ded51868195d5d6ddac62 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 < ff5ee507302303b15859753c3e0d67d38fd12c88 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 < 6c55714c931051cd7f4839c19ce0867179fd22fe 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 < 0a30dceb0e1f0c480d2482e6d7cebf8aebb6eb72 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 < d10119968d0e1f2b669604baf2a8b5fdb72fa6b4
Linux / Linux
2.6.19
References
git.kernel.org: https://git.kernel.org/stable/c/d27c02eec529f78055a46a5c9e6c62684382b2d8 git.kernel.org: https://git.kernel.org/stable/c/716c546e88cfe49d841658240e10cb57bc50a2cc git.kernel.org: https://git.kernel.org/stable/c/0616314b3b34f24cbb91da8c6bd8bcdc4c8592f9 git.kernel.org: https://git.kernel.org/stable/c/e0c8542c3d097ed4205ded51868195d5d6ddac62 git.kernel.org: https://git.kernel.org/stable/c/ff5ee507302303b15859753c3e0d67d38fd12c88 git.kernel.org: https://git.kernel.org/stable/c/6c55714c931051cd7f4839c19ce0867179fd22fe git.kernel.org: https://git.kernel.org/stable/c/0a30dceb0e1f0c480d2482e6d7cebf8aebb6eb72 git.kernel.org: https://git.kernel.org/stable/c/d10119968d0e1f2b669604baf2a8b5fdb72fa6b4