In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace

A received TKIP key may be up to 32 bytes because it may contain
MIC rx/tx keys too. These are not used by iwl and copying these
over overflows the iwl_keyinfo.key field.

Add a check to not copy more data to iwl_keyinfo.key then will fit.

This fixes backtraces like this one:

memcpy: detected field-spanning write (size 32) of single field "sta_cmd.key.key" at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 (size 16)
WARNING: CPU: 1 PID: 946 at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 iwlagn_send_sta_key+0x375/0x390 [iwldvm]
<snip>
Hardware name: Dell Inc. Latitude E6430/0H3MT5, BIOS A21 05/08/2017
RIP: 0010:iwlagn_send_sta_key+0x375/0x390 [iwldvm]
<snip>
Call Trace:
<TASK>
iwl_set_dynamic_key+0x1f0/0x220 [iwldvm]
iwlagn_mac_set_key+0x1e4/0x280 [iwldvm]
drv_set_key+0xa4/0x1b0 [mac80211]
ieee80211_key_enable_hw_accel+0xa8/0x2d0 [mac80211]
ieee80211_key_replace+0x22d/0x8e0 [mac80211]
<snip>

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.

The EPSS score is 0.00035.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 affected < 76b5ea43ad2fb4f726ddfaff839430a706e7d7c2
5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 affected < 3ed3c1c2fc3482b72e755820261779cd2e2c5a3e
5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 affected < fa57021262e998e2229d6383b1081638df2fe238
5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 affected < 91ad1ab3cc7e981cb6d6ee100686baed64e1277e
5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 affected < 87940e4030e4705e1f3fd2bbb1854eae8308314b
5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 affected < 57189c885149825be8eb8c3524b5af017fdeb941
5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 affected < 6cd644f66b43709816561d63e0173cb0c7aab159
5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 affected < ef16799640865f937719f0771c93be5dca18adc6
Linux Linux affected
Version Status Constraints
3.1 affected —
0 unaffected < 3.1
4.14.316 unaffected ≤ 4.14.*
4.19.284 unaffected ≤ 4.19.*
5.4.244 unaffected ≤ 5.4.*
5.10.181 unaffected ≤ 5.10.*
5.15.113 unaffected ≤ 5.15.*
6.1.30 unaffected ≤ 6.1.*
6.3.4 unaffected ≤ 6.3.*
6.4 unaffected ≤ *

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/3ed3c1c2fc3482b72e755820261779cd2e2c5a3e cve-icon cve-icon
https://git.kernel.org/stable/c/57189c885149825be8eb8c3524b5af017fdeb941 cve-icon cve-icon
https://git.kernel.org/stable/c/6cd644f66b43709816561d63e0173cb0c7aab159 cve-icon cve-icon
https://git.kernel.org/stable/c/76b5ea43ad2fb4f726ddfaff839430a706e7d7c2 cve-icon cve-icon
https://git.kernel.org/stable/c/87940e4030e4705e1f3fd2bbb1854eae8308314b cve-icon cve-icon
https://git.kernel.org/stable/c/91ad1ab3cc7e981cb6d6ee100686baed64e1277e cve-icon cve-icon
https://git.kernel.org/stable/c/ef16799640865f937719f0771c93be5dca18adc6 cve-icon cve-icon
https://git.kernel.org/stable/c/fa57021262e998e2229d6383b1081638df2fe238 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025123027-CVE-2023-54286-efd5@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-54286 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-54286 cve-icon
History

Wed, 31 Dec 2025 00:15:00 +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

Important

Tue, 30 Dec 2025 12:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace A received TKIP key may be up to 32 bytes because it may contain MIC rx/tx keys too. These are not used by iwl and copying these over overflows the iwl_keyinfo.key field. Add a check to not copy more data to iwl_keyinfo.key then will fit. This fixes backtraces like this one: memcpy: detected field-spanning write (size 32) of single field "sta_cmd.key.key" at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 (size 16) WARNING: CPU: 1 PID: 946 at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 iwlagn_send_sta_key+0x375/0x390 [iwldvm] <snip> Hardware name: Dell Inc. Latitude E6430/0H3MT5, BIOS A21 05/08/2017 RIP: 0010:iwlagn_send_sta_key+0x375/0x390 [iwldvm] <snip> Call Trace: <TASK> iwl_set_dynamic_key+0x1f0/0x220 [iwldvm] iwlagn_mac_set_key+0x1e4/0x280 [iwldvm] drv_set_key+0xa4/0x1b0 [mac80211] ieee80211_key_enable_hw_accel+0xa8/0x2d0 [mac80211] ieee80211_key_replace+0x22d/0x8e0 [mac80211] <snip>
Title wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-05T11:37:18.665Z

Reserved: 2025-12-30T12:06:44.526Z

Link: CVE-2023-54286

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-30T13:16:17.620

Modified: 2025-12-31T20:42:43.210

Link: CVE-2023-54286

cve-icon Redhat

Severity : Important

Publid Date: 2025-12-30T00:00:00Z

Links: CVE-2023-54286 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.