CVE-2023-53539

MEDIUM EPSS 3.9%
Published Oct 4, 20258mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 4, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥4.8.1  –  <6.1.53
linuxlinux_kernel*≥6.2  –  <6.4.16
linuxlinux_kernel*≥6.5  –  <6.5.3
linuxlinux_kernel4.8any
linuxlinux_kernel4.8any
linuxlinux_kernel4.8any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/255c0e60e1d16874fc151358d94bc8df661600dd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2f2a6422287fe29f9343247d77b645100ece0652
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d122db2ff80cd2aed4dcd630befb56b51ddf947
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70518f3aaf5a059b691867d7d2d46b999319656a
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/255c0e60e1d16874fc151358d94bc8df661600dd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2f2a6422287fe29f9343247d77b645100ece0652
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d122db2ff80cd2aed4dcd630befb56b51ddf947
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/70518f3aaf5a059b691867d7d2d46b999319656a
    Patch