Bug 2552431 - CVE-2026-86845 dpdk: dpdk: Guest-triggered use-after-free and type confusion in vhost-crypto session cleanup [fedora-all]
Summary: CVE-2026-86845 dpdk: dpdk: Guest-triggered use-after-free and type confusion ...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: dpdk
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Timothy Redaelli
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["63fbe606-afb4-4c49-9aef-1...
Depends On:
Blocks: CVE-2026-86845
TreeView+ depends on / blocked
 
Reported: 2026-10-14 15:57 UTC by Ganesh
Modified: 2026-10-14 15:57 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Ganesh 2026-10-14 15:57:52 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A flaw was found in DPDK lib/vhost vhost-crypto. vhost_crypto_close_sess() frees a cryptodev session without invalidating the per-device session cache, so a later request with the same session id uses a dangling pointer. The data path also attaches vhost_session->sym or vhost_session->asym without checking the session type, so an asymmetric session can be treated as symmetric.


Note You need to log in before you can comment on or make changes to this bug.