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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-31671

xfrm_user: fix info leak in build_report()

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 to < d27c02eec529f78055a46a5c9e6c62684382b2d8affected
  • 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 to < 716c546e88cfe49d841658240e10cb57bc50a2ccaffected
  • 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 to < 0616314b3b34f24cbb91da8c6bd8bcdc4c8592f9affected
  • 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 to < e0c8542c3d097ed4205ded51868195d5d6ddac62affected
  • 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 to < ff5ee507302303b15859753c3e0d67d38fd12c88affected
  • 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 to < 6c55714c931051cd7f4839c19ce0867179fd22feaffected
  • 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 to < 0a30dceb0e1f0c480d2482e6d7cebf8aebb6eb72affected
  • 97a64b4577ae2bc5599dbd008a3cd9e25de9b9f5 to < d10119968d0e1f2b669604baf2a8b5fdb72fa6b4affected

Linux Linux

Default version status: affected

  • 2.6.19affected
  • 0 to < 2.6.19unaffected
  • 5.10.253 to ≤ 5.10.*unaffected
  • 5.15.203 to ≤ 5.15.*unaffected
  • 6.1.169 to ≤ 6.1.*unaffected
  • 6.6.135 to ≤ 6.6.*unaffected
  • 6.12.82 to ≤ 6.12.*unaffected
  • 6.18.23 to ≤ 6.18.*unaffected
  • 6.19.13 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References