Bug 2293237 (CVE-2021-47590)
| Summary: | CVE-2021-47590 kernel: mptcp: fix deadlock in __mptcp_push_pending() | ||
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| Product: | [Other] Security Response | Reporter: | Avinash Hanwate <ahanwate> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | dfreiber, drow, jburrell, vkumar, ymittal |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 5.15.11, kernel 5.16 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A vulnerability was found in the Linux kernel's mptcp component in the __mptcp_push_pending() function, where a deadlock can occur when calling mptcp_flush_join_list() with the subflow socket lock held. This happens if the synchronization function mptcp_sockopt_sync_all() is invoked, causing the system to hang due to competing locks, this vulnerability can lead to significant disruptions in MultiPath TCP operations.
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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: | |||
| Bug Blocks: | 2293209 | ||
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Description
Avinash Hanwate
2024-06-20 10:49:30 UTC
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