CVE-2022-49519 (GCVE-0-2022-49519)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2025-09-15 12:14
VLAI?
Title
ath10k: skip ath10k_halt during suspend for driver state RESTARTING
Summary
In the Linux kernel, the following vulnerability has been resolved: ath10k: skip ath10k_halt during suspend for driver state RESTARTING Double free crash is observed when FW recovery(caused by wmi timeout/crash) is followed by immediate suspend event. The FW recovery is triggered by ath10k_core_restart() which calls driver clean up via ath10k_halt(). When the suspend event occurs between the FW recovery, the restart worker thread is put into frozen state until suspend completes. The suspend event triggers ath10k_stop() which again triggers ath10k_halt() The double invocation of ath10k_halt() causes ath10k_htt_rx_free() to be called twice(Note: ath10k_htt_rx_alloc was not called by restart worker thread because of its frozen state), causing the crash. To fix this, during the suspend flow, skip call to ath10k_halt() in ath10k_stop() when the current driver state is ATH10K_STATE_RESTARTING. Also, for driver state ATH10K_STATE_RESTARTING, call ath10k_wait_for_suspend() in ath10k_stop(). This is because call to ath10k_wait_for_suspend() is skipped later in [ath10k_halt() > ath10k_core_stop()] for the driver state ATH10K_STATE_RESTARTING. The frozen restart worker thread will be cancelled during resume when the device comes out of suspend. Below is the crash stack for reference: [ 428.469167] ------------[ cut here ]------------ [ 428.469180] kernel BUG at mm/slub.c:4150! [ 428.469193] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 428.469219] Workqueue: events_unbound async_run_entry_fn [ 428.469230] RIP: 0010:kfree+0x319/0x31b [ 428.469241] RSP: 0018:ffffa1fac015fc30 EFLAGS: 00010246 [ 428.469247] RAX: ffffedb10419d108 RBX: ffff8c05262b0000 [ 428.469252] RDX: ffff8c04a8c07000 RSI: 0000000000000000 [ 428.469256] RBP: ffffa1fac015fc78 R08: 0000000000000000 [ 428.469276] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 428.469285] Call Trace: [ 428.469295] ? dma_free_attrs+0x5f/0x7d [ 428.469320] ath10k_core_stop+0x5b/0x6f [ 428.469336] ath10k_halt+0x126/0x177 [ 428.469352] ath10k_stop+0x41/0x7e [ 428.469387] drv_stop+0x88/0x10e [ 428.469410] __ieee80211_suspend+0x297/0x411 [ 428.469441] rdev_suspend+0x6e/0xd0 [ 428.469462] wiphy_suspend+0xb1/0x105 [ 428.469483] ? name_show+0x2d/0x2d [ 428.469490] dpm_run_callback+0x8c/0x126 [ 428.469511] ? name_show+0x2d/0x2d [ 428.469517] __device_suspend+0x2e7/0x41b [ 428.469523] async_suspend+0x1f/0x93 [ 428.469529] async_run_entry_fn+0x3d/0xd1 [ 428.469535] process_one_work+0x1b1/0x329 [ 428.469541] worker_thread+0x213/0x372 [ 428.469547] kthread+0x150/0x15f [ 428.469552] ? pr_cont_work+0x58/0x58 [ 428.469558] ? kthread_blkcg+0x31/0x31 Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 , < 8aa3750986ffcf73e0692db3b40dd3a8e8c0c575 (git)
Affected: 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 , < c2272428090d0d215a3f017cbbbad731c07eee53 (git)
Affected: 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 , < 7eb14cb604f49e58b7cf6faa87961a865a3c8649 (git)
Affected: 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 , < 5321e5211b5dc873e2e3d0deb749e69ecf4dbfe5 (git)
Affected: 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 , < b72a4aff947ba807177bdabb43debaf2c66bee05 (git)
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    Linux Linux Affected: 3.11
Unaffected: 0 , < 3.11 (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath10k/mac.c"
          ],
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/ath/ath10k/mac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.11"
            },
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              "lessThan": "3.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.10.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.121",
                  "versionStartIncluding": "3.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.46",
                  "versionStartIncluding": "3.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.14",
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                  "vulnerable": true
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                {
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nath10k: skip ath10k_halt during suspend for driver state RESTARTING\n\nDouble free crash is observed when FW recovery(caused by wmi\ntimeout/crash) is followed by immediate suspend event. The FW recovery\nis triggered by ath10k_core_restart() which calls driver clean up via\nath10k_halt(). When the suspend event occurs between the FW recovery,\nthe restart worker thread is put into frozen state until suspend completes.\nThe suspend event triggers ath10k_stop() which again triggers ath10k_halt()\nThe double invocation of ath10k_halt() causes ath10k_htt_rx_free() to be\ncalled twice(Note: ath10k_htt_rx_alloc was not called by restart worker\nthread because of its frozen state), causing the crash.\n\nTo fix this, during the suspend flow, skip call to ath10k_halt() in\nath10k_stop() when the current driver state is ATH10K_STATE_RESTARTING.\nAlso, for driver state ATH10K_STATE_RESTARTING, call\nath10k_wait_for_suspend() in ath10k_stop(). This is because call to\nath10k_wait_for_suspend() is skipped later in\n[ath10k_halt() \u003e ath10k_core_stop()] for the driver state\nATH10K_STATE_RESTARTING.\n\nThe frozen restart worker thread will be cancelled during resume when the\ndevice comes out of suspend.\n\nBelow is the crash stack for reference:\n\n[  428.469167] ------------[ cut here ]------------\n[  428.469180] kernel BUG at mm/slub.c:4150!\n[  428.469193] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n[  428.469219] Workqueue: events_unbound async_run_entry_fn\n[  428.469230] RIP: 0010:kfree+0x319/0x31b\n[  428.469241] RSP: 0018:ffffa1fac015fc30 EFLAGS: 00010246\n[  428.469247] RAX: ffffedb10419d108 RBX: ffff8c05262b0000\n[  428.469252] RDX: ffff8c04a8c07000 RSI: 0000000000000000\n[  428.469256] RBP: ffffa1fac015fc78 R08: 0000000000000000\n[  428.469276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  428.469285] Call Trace:\n[  428.469295]  ? dma_free_attrs+0x5f/0x7d\n[  428.469320]  ath10k_core_stop+0x5b/0x6f\n[  428.469336]  ath10k_halt+0x126/0x177\n[  428.469352]  ath10k_stop+0x41/0x7e\n[  428.469387]  drv_stop+0x88/0x10e\n[  428.469410]  __ieee80211_suspend+0x297/0x411\n[  428.469441]  rdev_suspend+0x6e/0xd0\n[  428.469462]  wiphy_suspend+0xb1/0x105\n[  428.469483]  ? name_show+0x2d/0x2d\n[  428.469490]  dpm_run_callback+0x8c/0x126\n[  428.469511]  ? name_show+0x2d/0x2d\n[  428.469517]  __device_suspend+0x2e7/0x41b\n[  428.469523]  async_suspend+0x1f/0x93\n[  428.469529]  async_run_entry_fn+0x3d/0xd1\n[  428.469535]  process_one_work+0x1b1/0x329\n[  428.469541]  worker_thread+0x213/0x372\n[  428.469547]  kthread+0x150/0x15f\n[  428.469552]  ? pr_cont_work+0x58/0x58\n[  428.469558]  ? kthread_blkcg+0x31/0x31\n\nTested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-15T12:14:07.773Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8aa3750986ffcf73e0692db3b40dd3a8e8c0c575"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2272428090d0d215a3f017cbbbad731c07eee53"
        },
        {
          "url": "https://git.kernel.org/stable/c/7eb14cb604f49e58b7cf6faa87961a865a3c8649"
        },
        {
          "url": "https://git.kernel.org/stable/c/5321e5211b5dc873e2e3d0deb749e69ecf4dbfe5"
        },
        {
          "url": "https://git.kernel.org/stable/c/b72a4aff947ba807177bdabb43debaf2c66bee05"
        }
      ],
      "title": "ath10k: skip ath10k_halt during suspend for driver state RESTARTING",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49519",
    "datePublished": "2025-02-26T02:13:45.857Z",
    "dateReserved": "2025-02-26T02:08:31.588Z",
    "dateUpdated": "2025-09-15T12:14:07.773Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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