Bug 2529853 (CVE-2026-86848) - CVE-2026-86848 dpdk: dpdk: Time-of-check/time-of-use vulnerability allowing guest-triggered out-of-bounds write in vhost-crypto
Summary: CVE-2026-86848 dpdk: dpdk: Time-of-check/time-of-use vulnerability allowing g...
Keywords:
Status: NEW
Alias: CVE-2026-86848
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2552444 2552450
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-08 14:55 UTC by OSIDB Bzimport
Modified: 2026-10-14 16:11 UTC (History)
30 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-08 14:55:22 UTC 
A flaw was found in DPDK lib/vhost vhost-crypto. The indirect-descriptor snapshot still double-fetches src_desc->next: it checks the index, then indexes the live guest table with a second read. A guest can change next after the check and force an out-of-bounds access. This is a remaining TOCTOU after CVE-2020-14375, not that ID.
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