CVE-2023-53504

RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF

HIGH

7.8

CVSS Score

Published: October 1, 2025 at 11:45 AM UTC

Updated: October 15, 2026 at 10:17 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF ib_dealloc_device() should be called only after device cleanup. Fix the dealloc sequence.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

6.3 ≤ v < 6.4.116.5 6.5 rc1 6.5 rc2 6.5 rc3 6.5 rc4 6.5 rc56d758147c7b80a46465f72e9e6294d244ee98a21

Vendor states this is fixed in 5363fc488da579923edf6a2fdca3d3b651dd800b (fixed)

Vendor states this is fixed in c95863f6d970ef968e7c1f3c481f72a4b0734654 (fixed)

Vendor states this is fixed in 6.3 (unaffected)

Vendor states this is fixed in 6.4.11 (unaffected)

Vendor states this is fixed in 6.5 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch

Source: cverecord

https://git.kernel.org/stable/c/c95863f6d970ef968e7c1f3c481f72a4b0734654

Patch

Source: cverecord

https://git.kernel.org/stable/c/5363fc488da579923edf6a2fdca3d3b651dd800b

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-416

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