Bug 2057506 (CVE-2022-0998) - CVE-2022-0998 kernel: an integer overflow in the vhost_vdpa_config_validate() can lead to out-of-bounds access on top of a 32-bit Linux kernel
Summary: CVE-2022-0998 kernel: an integer overflow in the vhost_vdpa_config_validate()...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2022-0998
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2066317
Blocks: 2054799
TreeView+ depends on / blocked
 
Reported: 2022-02-23 14:35 UTC by Alex
Modified: 2022-03-30 13:09 UTC (History)
49 users (show)

Fixed In Version: Linux kernel 5.17-rc1
Doc Type: If docs needed, set a value
Doc Text:
An integer overflow flaw was found in the Linux kernel’s virtio device driver code in the way a user triggers the vhost_vdpa_config_validate function. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Clone Of:
Environment:
Last Closed: 2022-03-15 20:31:22 UTC
Embargoed:

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Description Alex 2022-02-23 14:35:32 UTC 
An out of bounds (OOB) memory access flaw was found in the Linux Kernel's guest virtio device driver code (if this code enabled with the CONFIG_VHOST_VDPA kernel config parameter).
An integer overflow in the vhost_vdpa_config_validate function can lead to out-of-bounds access on top of a 32-bit linux kernel.

Reference:
https://lore.kernel.org/netdev/20220123001216.2460383-13-sashal@kernel.org/
Comment 3 Guilherme de Almeida Suckevicz 2022-03-21 13:37:58 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2066317]
Comment 4 Justin M. Forbes 2022-03-23 14:22:42 UTC 
This was fixed for Fedora with the 5.16.x kernel rebases.
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