wifi: wilc1000: validate assoc response length before subtracting header
In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: validate assoc response length before subtracting header wilc_parse_assoc_resp_info() computes the trailing IE length as ies_len = buffer_len - sizeof(*res); without first checking that buffer_len is at least sizeof(struct wilc_assoc_resp) (6 bytes). buffer_len is the length reported for a received association response (host_int_parse_assoc_resp_info() passes hif_drv->assoc_resp / assoc_resp_info_len straight in) and must be validated before the driver accesses the fixed header. For a frame shorter than the 6-byte fixed header, the subtraction wraps. For a four-byte response the result is truncated to a u16 ies_len of 65534, so kmemdup() then attempts to copy 65534 bytes starting at buffer + sizeof(*res), beyond the valid association-response data (CWE-125). A response shorter than four bytes can also cause an out-of-bounds read of res->status_code at offsets 2 and 3. Reject frames too short to hold the fixed header before touching the header or computing ies_len. Also set the connection status to a failure on this path: the caller falls through to a "conn_info->status == WLAN_STATUS_SUCCESS" check after the parser returns, so leaving the status untouched could let a malformed short response be treated as a successful association.
CVE-2026-68196
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:CVE-2026-68196
Kernel
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 5.10.265
Source reference:
/affected/1/ranges5.15.216Source reference:
/affected/1/ranges6.1.183Source reference:
/affected/1/ranges6.6.148Source reference:
/affected/1/ranges6.12.101Source reference:
/affected/1/ranges6.18.42Source reference:
/affected/1/ranges7.1.6Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "c5c77ba18ea66aa05441c71e38473efb787705a4"
},
{
"fixed": "d79b92417f33424ff23dad76716ed8f2cefb1083"
},
{
"fixed": "b81d0ea9e1daa215b3da68c1f4f6fb07940c2f6a"
},
{
"fixed": "8d50acf5420de0c4da99c2d634731c9d3164a755"
},
{
"fixed": "584c8954ad55f8b09b475be6db710fe40ceb988c"
},
{
"fixed": "4d410320e8ae5933e651660c9fadc1d380309e23"
},
{
"fixed": "e511e93abd6eeedcd5b3c55516241f414fbde64a"
},
{
"fixed": "8ccdf8c8de87a9580df37c3c1ec53ba88cedef65"
},
{
"fixed": "4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68196.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "4.2.0"
},
{
"fixed": "5.10.265"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.216"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.183"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.148"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.101"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.42"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
},
{
"fixed": "7.1.6"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68196.json"
}
}
]- Related CVEs
- CVE-2026-68196
Source reference:
/id
Publisher severity
No explicit severity was provided.
- Event
- #50723 · Revision 1
- Added to Heist Feed
- Publisher date