Bug 1217867 (CVE-2023-6560) - VUL-0: CVE-2023-6560: kernel: io_uring out of boundary memory access in __io_uaddr_map()
Summary: VUL-0: CVE-2023-6560: kernel: io_uring out of boundary memory access in __io_...
Status: RESOLVED FIXED
Alias: CVE-2023-6560
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Kernel Bugs
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/387226/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-6560:4.4:(AV:L...
Keywords:
Depends on:
Blocks:
 
Reported: 2023-12-07 08:48 UTC by SMASH SMASH
Modified: 2023-12-07 09:22 UTC (History)
1 user (show)

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Found By: Security Response Team
Services Priority:
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Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description SMASH SMASH 2023-12-07 08:48:49 UTC 
A flaw in the Linux Kernel found. For the io_uring SQ/CQ rings, out of boundaries memory access could happen as result of incorrect behavior in function __io_uaddr_map for the case of not physically contiguous memory.

Reference:
https://patchwork.kernel.org/project/io-uring/patch/20231130194633.649319-2-axboe@kernel.dk/

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-6560
Comment 1 Alexander Bergmann 2023-12-07 09:22:22 UTC 
The function __io_uaddr_map(...) was introduced in kernel version v6.5.

Commit 820d070feb668 landed already inside the master branch wit tag v6.7-rc4.

Closing as fixed.