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wifi: rtw89: fix use-after-free in rtw89_core_tx_kick_off_and_wait()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fix use-after-free in rtw89_core_tx_kick_off_and_wait() There is a bug observed when rtw89_core_tx_kick_off_and_wait() tries to access already freed skb_data: BUG: KFENCE: use-after-free write in rtw89_core_tx_kick_off_and_wait drivers/net/wireless/realtek/rtw89/core.c:1110 CPU: 6 UID: 0 PID: 41377 Comm: kworker/u64:24 Not tainted 6.17.0-rc1+ #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS edk2-20250523-14.fc42 05/23/2025 Workqueue: events_unbound cfg80211_wiphy_work [cfg80211] Use-after-free write at 0x0000000020309d9d (in kfence-#251): rtw89_core_tx_kick_off_and_wait drivers/net/wireless/realtek/rtw89/core.c:1110 rtw89_core_scan_complete drivers/net/wireless/realtek/rtw89/core.c:5338 rtw89_hw_scan_complete_cb drivers/net/wireless/realtek/rtw89/fw.c:7979 rtw89_chanctx_proceed_cb drivers/net/wireless/realtek/rtw89/chan.c:3165 rtw89_chanctx_proceed drivers/net/wireless/realtek/rtw89/chan.h:141 rtw89_hw_scan_complete drivers/net/wireless/realtek/rtw89/fw.c:8012 rtw89_mac_c2h_scanofld_rsp drivers/net/wireless/realtek/rtw89/mac.c:5059 rtw89_fw_c2h_work drivers/net/wireless/realtek/rtw89/fw.c:6758 process_one_work kernel/workqueue.c:3241 worker_thread kernel/workqueue.c:3400 kthread kernel/kthread.c:463 ret_from_fork arch/x86/kernel/process.c:154 ret_from_fork_asm arch/x86/entry/entry_64.S:258 kfence-#251: 0x0000000056e2393d-0x000000009943cb62, size=232, cache=skbuff_head_

Announced Source revision 1
Original source ↗

CVE-2025-40000

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-2025-40000

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": "1ae5ca615285d5d4f72d1de464716d85dffef19f",
        "lessThan": "895cccf639ac015f3d5f993218cf098db82ac145",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1ae5ca615285d5d4f72d1de464716d85dffef19f",
        "lessThan": "f21f530b03b4b23448edb531a0cfea434cb76bb4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1ae5ca615285d5d4f72d1de464716d85dffef19f",
        "lessThan": "bdb3c41b358cf87d99e39d393e164f9e4a6088e6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1ae5ca615285d5d4f72d1de464716d85dffef19f",
        "lessThan": "3e31a6bc07312b448fad3b45de578471f86f0e77",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/realtek/rtw89/core.c",
      "drivers/net/wireless/realtek/rtw89/core.h",
      "drivers/net/wireless/realtek/rtw89/pci.c",
      "drivers/net/wireless/realtek/rtw89/ser.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.4"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.4",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.12.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.16.12",
        "versionType": "semver",
        "lessThanOrEqual": "6.16.*"
      },
      {
        "status": "unaffected",
        "version": "6.17.1",
        "versionType": "semver",
        "lessThanOrEqual": "6.17.*"
      },
      {
        "status": "unaffected",
        "version": "6.18",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/realtek/rtw89/core.c",
      "drivers/net/wireless/realtek/rtw89/core.h",
      "drivers/net/wireless/realtek/rtw89/pci.c",
      "drivers/net/wireless/realtek/rtw89/ser.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2025-40000

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#30661 · Revision 1
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Publisher date
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