CVE-2025-38647 (GCVE-0-2025-38647)
Vulnerability from cvelistv5
Published
2025-08-22 16:00
Modified
2025-08-22 16:00
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi The following assertion is triggered on the rtw89 driver startup. It looks meaningless to hold wiphy lock on the early init stage so drop the assertion. WARNING: CPU: 7 PID: 629 at drivers/net/wireless/realtek/rtw89/sar.c:502 rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core] CPU: 7 UID: 0 PID: 629 Comm: (udev-worker) Not tainted 6.15.0+ #29 PREEMPT(lazy) Hardware name: LENOVO 21D0/LNVNB161216, BIOS J6CN50WW 09/27/2024 RIP: 0010:rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core] Call Trace: <TASK> rtw89_sar_init+0x68/0x2c0 [rtw89_core] rtw89_core_init+0x188e/0x1e50 [rtw89_core] rtw89_pci_probe+0x530/0xb50 [rtw89_pci] local_pci_probe+0xd9/0x190 pci_call_probe+0x183/0x540 pci_device_probe+0x171/0x2c0 really_probe+0x1e1/0x890 __driver_probe_device+0x18c/0x390 driver_probe_device+0x4a/0x120 __driver_attach+0x1a0/0x530 bus_for_each_dev+0x10b/0x190 bus_add_driver+0x2eb/0x540 driver_register+0x1a3/0x3a0 do_one_initcall+0xd5/0x450 do_init_module+0x2cc/0x8f0 init_module_from_file+0xe1/0x150 idempotent_init_module+0x226/0x760 __x64_sys_finit_module+0xcd/0x150 do_syscall_64+0x94/0x380 entry_SYSCALL_64_after_hwframe+0x76/0x7e Found by Linux Verification Center (linuxtesting.org).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6fe21445f7e801de5527d420f8e25e97b0cdd7e2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f7ac6df92eee030151476078069dc3eb0002dfb0
Impacted products
Vendor Product Version
Linux Linux Version: 88ca3107d2ce06448018e0571f7c0f1b40f57b55
Version: 88ca3107d2ce06448018e0571f7c0f1b40f57b55
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   Linux Linux Version: 6.16
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtw89/sar.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f7ac6df92eee030151476078069dc3eb0002dfb0",
              "status": "affected",
              "version": "88ca3107d2ce06448018e0571f7c0f1b40f57b55",
              "versionType": "git"
            },
            {
              "lessThan": "6fe21445f7e801de5527d420f8e25e97b0cdd7e2",
              "status": "affected",
              "version": "88ca3107d2ce06448018e0571f7c0f1b40f57b55",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/realtek/rtw89/sar.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17-rc1",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi\n\nThe following assertion is triggered on the rtw89 driver startup. It\nlooks meaningless to hold wiphy lock on the early init stage so drop the\nassertion.\n\n WARNING: CPU: 7 PID: 629 at drivers/net/wireless/realtek/rtw89/sar.c:502 rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]\n CPU: 7 UID: 0 PID: 629 Comm: (udev-worker) Not tainted 6.15.0+ #29 PREEMPT(lazy)\n Hardware name: LENOVO 21D0/LNVNB161216, BIOS J6CN50WW 09/27/2024\n RIP: 0010:rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]\n Call Trace:\n  \u003cTASK\u003e\n  rtw89_sar_init+0x68/0x2c0 [rtw89_core]\n  rtw89_core_init+0x188e/0x1e50 [rtw89_core]\n  rtw89_pci_probe+0x530/0xb50 [rtw89_pci]\n  local_pci_probe+0xd9/0x190\n  pci_call_probe+0x183/0x540\n  pci_device_probe+0x171/0x2c0\n  really_probe+0x1e1/0x890\n  __driver_probe_device+0x18c/0x390\n  driver_probe_device+0x4a/0x120\n  __driver_attach+0x1a0/0x530\n  bus_for_each_dev+0x10b/0x190\n  bus_add_driver+0x2eb/0x540\n  driver_register+0x1a3/0x3a0\n  do_one_initcall+0xd5/0x450\n  do_init_module+0x2cc/0x8f0\n  init_module_from_file+0xe1/0x150\n  idempotent_init_module+0x226/0x760\n  __x64_sys_finit_module+0xcd/0x150\n  do_syscall_64+0x94/0x380\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFound by Linux Verification Center (linuxtesting.org)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-22T16:00:52.106Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f7ac6df92eee030151476078069dc3eb0002dfb0"
        },
        {
          "url": "https://git.kernel.org/stable/c/6fe21445f7e801de5527d420f8e25e97b0cdd7e2"
        }
      ],
      "title": "wifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38647",
    "datePublished": "2025-08-22T16:00:52.106Z",
    "dateReserved": "2025-04-16T04:51:24.030Z",
    "dateUpdated": "2025-08-22T16:00:52.106Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38647\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-08-22T16:15:39.337\",\"lastModified\":\"2025-08-22T18:08:51.663\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: rtw89: sar: drop lockdep assertion in rtw89_set_sar_from_acpi\\n\\nThe following assertion is triggered on the rtw89 driver startup. It\\nlooks meaningless to hold wiphy lock on the early init stage so drop the\\nassertion.\\n\\n WARNING: CPU: 7 PID: 629 at drivers/net/wireless/realtek/rtw89/sar.c:502 rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]\\n CPU: 7 UID: 0 PID: 629 Comm: (udev-worker) Not tainted 6.15.0+ #29 PREEMPT(lazy)\\n Hardware name: LENOVO 21D0/LNVNB161216, BIOS J6CN50WW 09/27/2024\\n RIP: 0010:rtw89_set_sar_from_acpi+0x365/0x4d0 [rtw89_core]\\n Call Trace:\\n  \u003cTASK\u003e\\n  rtw89_sar_init+0x68/0x2c0 [rtw89_core]\\n  rtw89_core_init+0x188e/0x1e50 [rtw89_core]\\n  rtw89_pci_probe+0x530/0xb50 [rtw89_pci]\\n  local_pci_probe+0xd9/0x190\\n  pci_call_probe+0x183/0x540\\n  pci_device_probe+0x171/0x2c0\\n  really_probe+0x1e1/0x890\\n  __driver_probe_device+0x18c/0x390\\n  driver_probe_device+0x4a/0x120\\n  __driver_attach+0x1a0/0x530\\n  bus_for_each_dev+0x10b/0x190\\n  bus_add_driver+0x2eb/0x540\\n  driver_register+0x1a3/0x3a0\\n  do_one_initcall+0xd5/0x450\\n  do_init_module+0x2cc/0x8f0\\n  init_module_from_file+0xe1/0x150\\n  idempotent_init_module+0x226/0x760\\n  __x64_sys_finit_module+0xcd/0x150\\n  do_syscall_64+0x94/0x380\\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\\n\\nFound by Linux Verification Center (linuxtesting.org).\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6fe21445f7e801de5527d420f8e25e97b0cdd7e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f7ac6df92eee030151476078069dc3eb0002dfb0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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