Bug 2000457 (CVE-2021-34866) - CVE-2021-34866 kernel: eBPF verification flaw [NEEDINFO]
Summary: CVE-2021-34866 kernel: eBPF verification flaw
Keywords:
Status: NEW
Alias: CVE-2021-34866
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2004731 2004732 2004733
Blocks: 1997324 2014625
TreeView+ depends on / blocked
 
Reported: 2021-09-02 08:00 UTC by Dhananjay Arunesh
Modified: 2023-12-06 09:36 UTC (History)
39 users (show)

Fixed In Version: Kernel 5.14
Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in Linux Kernel, where a type confusion problem in check_map_func_compatibility() may lead to free arbitrary kernel memory.
Clone Of:
Environment:
Last Closed:
Embargoed:
vmalik: needinfo? (rkeshri)

Attachments (Terms of Use)

Description Dhananjay Arunesh 2021-09-02 08:00:28 UTC 
A vulnerability was found in Linux Kernel, where a type confusion problem in check_map_func_compatibility() may lead to free arbitrary kernel memory.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=5b029a32cfe4600f5e10e36b41778506b90fd4de
https://www.zerodayinitiative.com/advisories/ZDI-21-1148/
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