Bug 2026786 (CVE-2021-4135)
| Summary: | CVE-2021-4135 kernel: Heap information leak in map_lookup_elem function | ||
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| Product: | [Other] Security Response | Reporter: | Pedro Sampaio <psampaio> |
| Component: | vulnerability | Assignee: | Nobody <nobody> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, adscvr, airlied, alciregi, allarkin, bhu, blc, chwhite, crwood, dvlasenk, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jfaracco, jforbes, jglisse, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lzampier, masami256, mchehab, mlangsdo, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, vkumar, walters, williams |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Linux kernel 5.16-rc6 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A flaw memory leak in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this flaw to get unauthorized access to some data.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2027105, 2027106, 2027107 | ||
| Bug Blocks: | 2026788, 2033830 | ||
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Description
Pedro Sampaio
2021-11-25 19:53:38 UTC
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