GHSA-GWWQ-P8RF-2XR4
Vulnerability from github – Published: 2025-12-30 15:30 – Updated: 2026-08-04 12:34In 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] Hardware name: Dell Inc. Latitude E6430/0H3MT5, BIOS A21 05/08/2017 RIP: 0010:iwlagn_send_sta_key+0x375/0x390 [iwldvm] Call Trace: 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]
{
"affected": [],
"aliases": [
"CVE-2023-54286"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-30T13:16:17Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace\n\nA received TKIP key may be up to 32 bytes because it may contain\nMIC rx/tx keys too. These are not used by iwl and copying these\nover overflows the iwl_keyinfo.key field.\n\nAdd a check to not copy more data to iwl_keyinfo.key then will fit.\n\nThis fixes backtraces like this one:\n\n 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)\n WARNING: CPU: 1 PID: 946 at drivers/net/wireless/intel/iwlwifi/dvm/sta.c:1103 iwlagn_send_sta_key+0x375/0x390 [iwldvm]\n \u003csnip\u003e\n Hardware name: Dell Inc. Latitude E6430/0H3MT5, BIOS A21 05/08/2017\n RIP: 0010:iwlagn_send_sta_key+0x375/0x390 [iwldvm]\n \u003csnip\u003e\n Call Trace:\n \u003cTASK\u003e\n iwl_set_dynamic_key+0x1f0/0x220 [iwldvm]\n iwlagn_mac_set_key+0x1e4/0x280 [iwldvm]\n drv_set_key+0xa4/0x1b0 [mac80211]\n ieee80211_key_enable_hw_accel+0xa8/0x2d0 [mac80211]\n ieee80211_key_replace+0x22d/0x8e0 [mac80211]\n \u003csnip\u003e",
"id": "GHSA-gwwq-p8rf-2xr4",
"modified": "2026-08-04T12:34:50Z",
"published": "2025-12-30T15:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54286"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3ed3c1c2fc3482b72e755820261779cd2e2c5a3e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/57189c885149825be8eb8c3524b5af017fdeb941"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6cd644f66b43709816561d63e0173cb0c7aab159"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/76b5ea43ad2fb4f726ddfaff839430a706e7d7c2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/87940e4030e4705e1f3fd2bbb1854eae8308314b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/91ad1ab3cc7e981cb6d6ee100686baed64e1277e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ef16799640865f937719f0771c93be5dca18adc6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fa57021262e998e2229d6383b1081638df2fe238"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
]
}
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