CVE-2023-53504
published 2025-10-01CVE-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() should be…
PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.14%
4.1th percentile
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
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.4.11-1 (forky) | linux 6.4.11-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 6d758147c7b80a46465f72e9e6294d244ee98a21 < c95863f6d970ef968e7c1f3c481f72a4b0734654 | c95863f6d970ef968e7c1f3c481f72a4b0734654 |
| linux | linux | >= 6d758147c7b80a46465f72e9e6294d244ee98a21 < 5363fc488da579923edf6a2fdca3d3b651dd800b | 5363fc488da579923edf6a2fdca3d3b651dd800b |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.4.11-1 | 6.4.11-1 |
| linux | linux_kernel | >= 0 < 6.4.11-1 | 6.4.11-1 |
| linux | linux_kernel | >= 6.3 < 6.4.11 | 6.4.11 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8LOW
vendor_redhat7.8HIGH
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Red Hat
kernel: RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF
vendor_redhat·2025-10-01·CVSS 7.8
CVE-2023-53504 [HIGH] CWE-664 kernel: RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF
kernel: RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF
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.
Statement: The bug stems from calling ib_dealloc_device() before fully tearing down the bnxt_re device, which can leave in-flight users holding references and lead to a use-after-free during driver removal. The fix reorders teardown: unregister/cleanup first, then call ib_dealloc_device().
Impact is availability-only (kernel crash during device remove/unbind or module unload).
For the CVSS the PR:H is because in typical setups because triggering the removal path (unbinding, hot-unplug, module unload, RD
Debian
CVE-2023-53504: linux - In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_r...
vendor_debian·2023·CVSS 7.8
CVE-2023-53504 [HIGH] CVE-2023-53504: linux - In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_r...
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.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved (fixed in 6.4.11-1)
sid: resolved (fixed in 6.4.11-1)
trixie: resolved (fixed in 6.4.11-1)
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()
osv·2025-10-01·CVSS 7.8
CVE-2023-53504 [HIGH] 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()
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.
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(
ghsa_unreviewed·2025-10-01
CVE-2023-53504 [HIGH] CWE-416 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(
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.
No detection rules found.
No public exploits indexed.
2025-10-01
Published