In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxe_requester If a send packet is dropped by the IP layer in rxe_requester() the call to rxe_xmit_packet() can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state before the packet was sent so it can be resent. However, the routines that save and restore the state miss a significnt part of the variable state in the wqe, the dma struct which is used to process through the sge table. And, the state is not saved before the packet is built which modifies the dma struct. Under heavy stress testing with many QPs on a fast node sending large messages to a slow node dropped packets are observed and the resent packets are corrupted because the dma struct was not restored. This patch fixes this behavior and allows the test cases to succeed.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/255c0e60e1d16874fc151358d94bc8df661600dd cve-icon cve-icon
https://git.kernel.org/stable/c/2f2a6422287fe29f9343247d77b645100ece0652 cve-icon cve-icon
https://git.kernel.org/stable/c/5d122db2ff80cd2aed4dcd630befb56b51ddf947 cve-icon cve-icon
https://git.kernel.org/stable/c/70518f3aaf5a059b691867d7d2d46b999319656a cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025100443-CVE-2023-53539-4411@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-53539 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-53539 cve-icon
History

Mon, 06 Oct 2025 22:45:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Mon, 06 Oct 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Sat, 04 Oct 2025 15:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxe_requester If a send packet is dropped by the IP layer in rxe_requester() the call to rxe_xmit_packet() can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state before the packet was sent so it can be resent. However, the routines that save and restore the state miss a significnt part of the variable state in the wqe, the dma struct which is used to process through the sge table. And, the state is not saved before the packet is built which modifies the dma struct. Under heavy stress testing with many QPs on a fast node sending large messages to a slow node dropped packets are observed and the resent packets are corrupted because the dma struct was not restored. This patch fixes this behavior and allows the test cases to succeed.
Title RDMA/rxe: Fix incomplete state save in rxe_requester
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-10-04T15:16:49.379Z

Reserved: 2025-10-04T15:14:15.919Z

Link: CVE-2023-53539

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-04T16:15:48.930

Modified: 2025-10-06T14:56:21.733

Link: CVE-2023-53539

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-04T00:00:00Z

Links: CVE-2023-53539 - Bugzilla