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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2023-54286
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-30 13:16:17 UTC
Updated2026-08-04 11:16:39 UTC
DescriptionIn 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>

Risk And Classification

Primary CVSS: v3.1 7.6 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.6HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
3.1CNADECLARED7.6HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 76b5ea43ad2fb4f726ddfaff839430a706e7d7c2 git Not specified
CNA Linux Linux affected 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 3ed3c1c2fc3482b72e755820261779cd2e2c5a3e git Not specified
CNA Linux Linux affected 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 fa57021262e998e2229d6383b1081638df2fe238 git Not specified
CNA Linux Linux affected 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 91ad1ab3cc7e981cb6d6ee100686baed64e1277e git Not specified
CNA Linux Linux affected 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 87940e4030e4705e1f3fd2bbb1854eae8308314b git Not specified
CNA Linux Linux affected 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 57189c885149825be8eb8c3524b5af017fdeb941 git Not specified
CNA Linux Linux affected 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 6cd644f66b43709816561d63e0173cb0c7aab159 git Not specified
CNA Linux Linux affected 5a3d9882b84edf5fa8e8ca33a5d6df25e2e727a5 ef16799640865f937719f0771c93be5dca18adc6 git Not specified
CNA Linux Linux affected 3.1 Not specified
CNA Linux Linux unaffected 3.1 semver Not specified
CNA Linux Linux unaffected 4.14.316 4.14.* semver Not specified
CNA Linux Linux unaffected 4.19.284 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.244 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.181 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.113 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.30 6.1.* semver Not specified
CNA Linux Linux unaffected 6.3.4 6.3.* semver Not specified
CNA Linux Linux unaffected 6.4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ef16799640865f937719f0771c93be5dca18adc6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/57189c885149825be8eb8c3524b5af017fdeb941 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/87940e4030e4705e1f3fd2bbb1854eae8308314b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6cd644f66b43709816561d63e0173cb0c7aab159 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fa57021262e998e2229d6383b1081638df2fe238 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/76b5ea43ad2fb4f726ddfaff839430a706e7d7c2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3ed3c1c2fc3482b72e755820261779cd2e2c5a3e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/91ad1ab3cc7e981cb6d6ee100686baed64e1277e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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