CVE-2023-53504 — Use After Free in Linux

CWE-416 — Use After FreeCWE-664 — Improper Control of a Resource Through its Lifetime5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 95.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 1

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶NVDlinux/linux_kernel6.3 — 6.4.11+1
▶Debianlinux/linux_kernel< 6.4.11-1+1
▶CVEListV5linux/linux6d758147c7b80a46465f72e9e6294d244ee98a21 — c95863f6d970ef968e7c1f3c481f72a4b0734654+2
▶debiandebian/linux< linux 6.4.11-1 (forky)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2023-53504: In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF ib_dealloc_device()↗2025-10-01
▶
GHSA
GHSA-877f-88x9-cx9x: In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF ib_dealloc_device(↗2025-10-01
▶

📋Vendor Advisories

2
Red Hat
kernel: RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF↗2025-10-01
▶
Debian
CVE-2023-53504: linux - In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_r...↗2023
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