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wifi: rsi: fix heap OOB write on key removal

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: fix heap OOB write on key removal When a key is removed (data == NULL), rsi_hal_load_key() runs: memset(&set_key[FRAME_DESC_SZ], 0, frame_len - FRAME_DESC_SZ); set_key is a struct rsi_set_key *, so the subscript is scaled by sizeof(struct rsi_set_key) (160 bytes): &set_key[FRAME_DESC_SZ] is skb->data + 2560, and the memset writes 144 zero bytes starting 2.4KB past the end of the 160-byte skb data buffer, corrupting unrelated heap objects. The intended byte offset would have been (u8 *)set_key + FRAME_DESC_SZ. The write fires on every DISABLE_KEY callback, so plain disconnects, roams and interface teardowns trigger it on real networks. The memset is redundant: the whole buffer is zeroed right after allocation, so the frame sent to the device is byte-identical without it. Drop the else branch; normal operation is unaffected. Discovered by Atuin - Automated Vulnerability Discovery Engine.

Announced Source revision 1
Original source ↗

CVE-2026-98407

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: cve:CVE-2026-98407

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
        "lessThan": "b79e2f6585c014c42384f4caa7a37b3e5d26179c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
        "lessThan": "c67fb3b875a83f9ba92afea4036c7b541f77512a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
        "lessThan": "62d40db89180cfab7a917395f9ffc1dac62b0019",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
        "lessThan": "00bea3589255603c38766cac4a4d6d36493b2556",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
        "lessThan": "ac599cf8edf8aa2dae546f04d3f1849e32c2e738",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
        "lessThan": "f4f2852b664c3ff1436785cd11258a0ce25b74b3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
        "lessThan": "8dab6ee020b2cd951b670626ba44a95cd4deac3d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "dad0d04fa7ba41ce603a01e8e64967650303e9a2",
        "lessThan": "e6c5ed7a98d7bc8b0f7918246f1c90ddb3f79dfa",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/rsi/rsi_91x_mgmt.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.15"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.15",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.54",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/rsi/rsi_91x_mgmt.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98407

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38472 · Revision 1
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Publisher date
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