CVE-2022-50714 (GCVE-0-2022-50714)

Vulnerability from cvelistv5 – Published: 2025-12-24 12:22 – Updated: 2025-12-24 12:22
VLAI?
Title
wifi: mt76: mt7921e: fix rmmod crash in driver reload test
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921e: fix rmmod crash in driver reload test In insmod/rmmod stress test, the following crash dump shows up immediately. The problem is caused by missing mt76_dev in mt7921_pci_remove(). We should make sure the drvdata is ready before probe() finished. [168.862789] ================================================================== [168.862797] BUG: KASAN: user-memory-access in try_to_grab_pending+0x59/0x480 [168.862805] Write of size 8 at addr 0000000000006df0 by task rmmod/5361 [168.862812] CPU: 7 PID: 5361 Comm: rmmod Tainted: G OE 5.19.0-rc6 #1 [168.862816] Hardware name: Intel(R) Client Systems NUC8i7BEH/NUC8BEB, 05/04/2020 [168.862820] Call Trace: [168.862822] <TASK> [168.862825] dump_stack_lvl+0x49/0x63 [168.862832] print_report.cold+0x493/0x6b7 [168.862845] kasan_report+0xa7/0x120 [168.862857] kasan_check_range+0x163/0x200 [168.862861] __kasan_check_write+0x14/0x20 [168.862866] try_to_grab_pending+0x59/0x480 [168.862870] __cancel_work_timer+0xbb/0x340 [168.862898] cancel_work_sync+0x10/0x20 [168.862902] mt7921_pci_remove+0x61/0x1c0 [mt7921e] [168.862909] pci_device_remove+0xa3/0x1d0 [168.862914] device_remove+0xc4/0x170 [168.862920] device_release_driver_internal+0x163/0x300 [168.862925] driver_detach+0xc7/0x1a0 [168.862930] bus_remove_driver+0xeb/0x2d0 [168.862935] driver_unregister+0x71/0xb0 [168.862939] pci_unregister_driver+0x30/0x230 [168.862944] mt7921_pci_driver_exit+0x10/0x1b [mt7921e] [168.862949] __x64_sys_delete_module+0x2f9/0x4b0 [168.862968] do_syscall_64+0x38/0x90 [168.862973] entry_SYSCALL_64_after_hwframe+0x63/0xcd Test steps: 1. insmode 2. do not ifup 3. rmmod quickly (within 1 second)
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1c71e03afe4b457a15e50de40006b927dfc00755 , < 1034d8e08508830161377f136a060e78fc24f2a5 (git)
Affected: 1c71e03afe4b457a15e50de40006b927dfc00755 , < ccda3ebdae719d348f90563b6719fba4929ae283 (git)
Affected: 1c71e03afe4b457a15e50de40006b927dfc00755 , < b5a62d612b7baf6e09884e4de94decb6391d6a9d (git)
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    Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1034d8e08508830161377f136a060e78fc24f2a5",
              "status": "affected",
              "version": "1c71e03afe4b457a15e50de40006b927dfc00755",
              "versionType": "git"
            },
            {
              "lessThan": "ccda3ebdae719d348f90563b6719fba4929ae283",
              "status": "affected",
              "version": "1c71e03afe4b457a15e50de40006b927dfc00755",
              "versionType": "git"
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              "status": "affected",
              "version": "1c71e03afe4b457a15e50de40006b927dfc00755",
              "versionType": "git"
            }
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7921/pci.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921e: fix rmmod crash in driver reload test\n\nIn insmod/rmmod stress test, the following crash dump shows up immediately.\nThe problem is caused by missing mt76_dev in mt7921_pci_remove(). We\nshould make sure the drvdata is ready before probe() finished.\n\n[168.862789] ==================================================================\n[168.862797] BUG: KASAN: user-memory-access in try_to_grab_pending+0x59/0x480\n[168.862805] Write of size 8 at addr 0000000000006df0 by task rmmod/5361\n[168.862812] CPU: 7 PID: 5361 Comm: rmmod Tainted: G           OE     5.19.0-rc6 #1\n[168.862816] Hardware name: Intel(R) Client Systems NUC8i7BEH/NUC8BEB, 05/04/2020\n[168.862820] Call Trace:\n[168.862822]  \u003cTASK\u003e\n[168.862825]  dump_stack_lvl+0x49/0x63\n[168.862832]  print_report.cold+0x493/0x6b7\n[168.862845]  kasan_report+0xa7/0x120\n[168.862857]  kasan_check_range+0x163/0x200\n[168.862861]  __kasan_check_write+0x14/0x20\n[168.862866]  try_to_grab_pending+0x59/0x480\n[168.862870]  __cancel_work_timer+0xbb/0x340\n[168.862898]  cancel_work_sync+0x10/0x20\n[168.862902]  mt7921_pci_remove+0x61/0x1c0 [mt7921e]\n[168.862909]  pci_device_remove+0xa3/0x1d0\n[168.862914]  device_remove+0xc4/0x170\n[168.862920]  device_release_driver_internal+0x163/0x300\n[168.862925]  driver_detach+0xc7/0x1a0\n[168.862930]  bus_remove_driver+0xeb/0x2d0\n[168.862935]  driver_unregister+0x71/0xb0\n[168.862939]  pci_unregister_driver+0x30/0x230\n[168.862944]  mt7921_pci_driver_exit+0x10/0x1b [mt7921e]\n[168.862949]  __x64_sys_delete_module+0x2f9/0x4b0\n[168.862968]  do_syscall_64+0x38/0x90\n[168.862973]  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nTest steps:\n1. insmode\n2. do not ifup\n3. rmmod quickly (within 1 second)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-24T12:22:39.059Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1034d8e08508830161377f136a060e78fc24f2a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/ccda3ebdae719d348f90563b6719fba4929ae283"
        },
        {
          "url": "https://git.kernel.org/stable/c/b5a62d612b7baf6e09884e4de94decb6391d6a9d"
        }
      ],
      "title": "wifi: mt76: mt7921e: fix rmmod crash in driver reload test",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50714",
    "datePublished": "2025-12-24T12:22:39.059Z",
    "dateReserved": "2025-12-24T12:20:40.329Z",
    "dateUpdated": "2025-12-24T12:22:39.059Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50714\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-24T13:15:58.030\",\"lastModified\":\"2025-12-24T13:15:58.030\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mt76: mt7921e: fix rmmod crash in driver reload test\\n\\nIn insmod/rmmod stress test, the following crash dump shows up immediately.\\nThe problem is caused by missing mt76_dev in mt7921_pci_remove(). We\\nshould make sure the drvdata is ready before probe() finished.\\n\\n[168.862789] ==================================================================\\n[168.862797] BUG: KASAN: user-memory-access in try_to_grab_pending+0x59/0x480\\n[168.862805] Write of size 8 at addr 0000000000006df0 by task rmmod/5361\\n[168.862812] CPU: 7 PID: 5361 Comm: rmmod Tainted: G           OE     5.19.0-rc6 #1\\n[168.862816] Hardware name: Intel(R) Client Systems NUC8i7BEH/NUC8BEB, 05/04/2020\\n[168.862820] Call Trace:\\n[168.862822]  \u003cTASK\u003e\\n[168.862825]  dump_stack_lvl+0x49/0x63\\n[168.862832]  print_report.cold+0x493/0x6b7\\n[168.862845]  kasan_report+0xa7/0x120\\n[168.862857]  kasan_check_range+0x163/0x200\\n[168.862861]  __kasan_check_write+0x14/0x20\\n[168.862866]  try_to_grab_pending+0x59/0x480\\n[168.862870]  __cancel_work_timer+0xbb/0x340\\n[168.862898]  cancel_work_sync+0x10/0x20\\n[168.862902]  mt7921_pci_remove+0x61/0x1c0 [mt7921e]\\n[168.862909]  pci_device_remove+0xa3/0x1d0\\n[168.862914]  device_remove+0xc4/0x170\\n[168.862920]  device_release_driver_internal+0x163/0x300\\n[168.862925]  driver_detach+0xc7/0x1a0\\n[168.862930]  bus_remove_driver+0xeb/0x2d0\\n[168.862935]  driver_unregister+0x71/0xb0\\n[168.862939]  pci_unregister_driver+0x30/0x230\\n[168.862944]  mt7921_pci_driver_exit+0x10/0x1b [mt7921e]\\n[168.862949]  __x64_sys_delete_module+0x2f9/0x4b0\\n[168.862968]  do_syscall_64+0x38/0x90\\n[168.862973]  entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nTest steps:\\n1. insmode\\n2. do not ifup\\n3. rmmod quickly (within 1 second)\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1034d8e08508830161377f136a060e78fc24f2a5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b5a62d612b7baf6e09884e4de94decb6391d6a9d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ccda3ebdae719d348f90563b6719fba4929ae283\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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