CVE - CVE-2021-47001

CVE-ID
CVE-2021-47001	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Fix cwnd update ordering After a reconnect, the reply handler is opening the cwnd (and thus enabling more RPC Calls to be sent) /before/ rpcrdma_post_recvs() can post enough Receive WRs to receive their replies. This causes an RNR and the new connection is lost immediately. The race is most clearly exposed when KASAN and disconnect injection are enabled. This slows down rpcrdma_rep_create() enough to allow the send side to post a bunch of RPC Calls before the Receive completion handler can invoke ib_post_recv().
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/19b5fa9489b5706bc878c3a522a7f771079e2fa0 URL:https://git.kernel.org/stable/c/19b5fa9489b5706bc878c3a522a7f771079e2fa0 MISC:https://git.kernel.org/stable/c/35d8b10a25884050bb3b0149b62c3818ec59f77c URL:https://git.kernel.org/stable/c/35d8b10a25884050bb3b0149b62c3818ec59f77c MISC:https://git.kernel.org/stable/c/8834ecb5df22b7ff3c9b0deba7726579bb613f95 URL:https://git.kernel.org/stable/c/8834ecb5df22b7ff3c9b0deba7726579bb613f95 MISC:https://git.kernel.org/stable/c/eddae8be7944096419c2ae29477a45f767d0fcd4 URL:https://git.kernel.org/stable/c/eddae8be7944096419c2ae29477a45f767d0fcd4
Assigning CNA
kernel.org
Date Record Created
20240227	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240227)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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