Bug 2298143 (CVE-2022-48807) - CVE-2022-48807 kernel: ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler
Summary: CVE-2022-48807 kernel: ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler
Keywords:
Status: NEW
Alias: CVE-2022-48807
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-07-16 12:29 UTC by OSIDB Bzimport
Modified: 2024-07-30 17:43 UTC (History)
4 users (show)

Fixed In Version: kernel 5.15.24, kernel 5.16.10, kernel 5.17
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Description OSIDB Bzimport 2024-07-16 12:29:45 UTC
In the Linux kernel, the following vulnerability has been resolved:

ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler

Currently, the same handler is called for both a NETDEV_BONDING_INFO
LAG unlink notification as for a NETDEV_UNREGISTER call.  This is
causing a problem though, since the netdev_notifier_info passed has
a different structure depending on which event is passed.  The problem
manifests as a call trace from a BUG: KASAN stack-out-of-bounds error.

Fix this by creating a handler specific to NETDEV_UNREGISTER that only
is passed valid elements in the netdev_notifier_info struct for the
NETDEV_UNREGISTER event.

Also included is the removal of an unbalanced dev_put on the peer_netdev
and related braces.


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