Vulnerability-Lookup

GHSA-H447-C2WM-JGWC

Vulnerability from github – Published: 2025-10-21 12:31 – Updated: 2025-10-21 12:31

Details

In the Linux kernel, the following vulnerability has been resolved:

watchdog: rzg2l_wdt: Fix 'BUG: Invalid wait context'

This patch fixes the issue 'BUG: Invalid wait context' during restart() callback by using clk_prepare_enable() instead of pm_runtime_get_sync() for turning on the clocks during restart.

This issue is noticed when testing with renesas_defconfig.

[ 42.213802] reboot: Restarting system [ 42.217860] [ 42.219364] ============================= [ 42.223368] [ BUG: Invalid wait context ] [ 42.227372] 5.17.0-rc5-arm64-renesas-00002-g10393723e35e #522 Not tainted [ 42.234153] ----------------------------- [ 42.238155] systemd-shutdow/1 is trying to lock: [ 42.242766] ffff00000a650828 (&genpd->mlock){+.+.}-{3:3}, at: genpd_lock_mtx+0x14/0x20 [ 42.250709] other info that might help us debug this: [ 42.255753] context-{4:4} [ 42.258368] 2 locks held by systemd-shutdow/1: [ 42.262806] #0: ffff80000944e1c8 (system_transition_mutex#2){+.+.}-{3:3}, at: __do_sys_reboot+0xd0/0x250 [ 42.272388] #1: ffff8000094c4e40 (rcu_read_lock){....}-{1:2}, at: atomic_notifier_call_chain+0x0/0x150 [ 42.281795] stack backtrace: [ 42.284672] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.17.0-rc5-arm64-renesas-00002-g10393723e35e #522 [ 42.294577] Hardware name: Renesas SMARC EVK based on r9a07g044c2 (DT) [ 42.301096] Call trace: [ 42.303538] dump_backtrace+0xcc/0xd8 [ 42.307203] show_stack+0x14/0x30 [ 42.310517] dump_stack_lvl+0x88/0xb0 [ 42.314180] dump_stack+0x14/0x2c [ 42.317492] __lock_acquire+0x1b24/0x1b50 [ 42.321502] lock_acquire+0x120/0x3a8 [ 42.325162] __mutex_lock+0x84/0x8f8 [ 42.328737] mutex_lock_nested+0x30/0x58 [ 42.332658] genpd_lock_mtx+0x14/0x20 [ 42.336319] genpd_runtime_resume+0xc4/0x228 [ 42.340587] __rpm_callback+0x44/0x170 [ 42.344337] rpm_callback+0x64/0x70 [ 42.347824] rpm_resume+0x4e0/0x6b8 [ 42.351310] __pm_runtime_resume+0x50/0x78 [ 42.355404] rzg2l_wdt_restart+0x28/0x68 [ 42.359329] watchdog_restart_notifier+0x1c/0x30 [ 42.363943] atomic_notifier_call_chain+0x94/0x150 [ 42.368732] do_kernel_restart+0x24/0x30 [ 42.372652] machine_restart+0x44/0x70 [ 42.376399] kernel_restart+0x3c/0x60 [ 42.380058] __do_sys_reboot+0x228/0x250 [ 42.383977] __arm64_sys_reboot+0x20/0x28 [ 42.387983] invoke_syscall+0x40/0xf8

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49383"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: rzg2l_wdt: Fix \u0027BUG: Invalid wait context\u0027\n\nThis patch fixes the issue \u0027BUG: Invalid wait context\u0027 during restart()\ncallback by using clk_prepare_enable() instead of pm_runtime_get_sync()\nfor turning on the clocks during restart.\n\nThis issue is noticed when testing with renesas_defconfig.\n\n[   42.213802] reboot: Restarting system\n[   42.217860]\n[   42.219364] =============================\n[   42.223368] [ BUG: Invalid wait context ]\n[   42.227372] 5.17.0-rc5-arm64-renesas-00002-g10393723e35e #522 Not tainted\n[   42.234153] -----------------------------\n[   42.238155] systemd-shutdow/1 is trying to lock:\n[   42.242766] ffff00000a650828 (\u0026genpd-\u003emlock){+.+.}-{3:3}, at: genpd_lock_mtx+0x14/0x20\n[   42.250709] other info that might help us debug this:\n[   42.255753] context-{4:4}\n[   42.258368] 2 locks held by systemd-shutdow/1:\n[   42.262806]  #0: ffff80000944e1c8 (system_transition_mutex#2){+.+.}-{3:3}, at: __do_sys_reboot+0xd0/0x250\n[   42.272388]  #1: ffff8000094c4e40 (rcu_read_lock){....}-{1:2}, at: atomic_notifier_call_chain+0x0/0x150\n[   42.281795] stack backtrace:\n[   42.284672] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.17.0-rc5-arm64-renesas-00002-g10393723e35e #522\n[   42.294577] Hardware name: Renesas SMARC EVK based on r9a07g044c2 (DT)\n[   42.301096] Call trace:\n[   42.303538]  dump_backtrace+0xcc/0xd8\n[   42.307203]  show_stack+0x14/0x30\n[   42.310517]  dump_stack_lvl+0x88/0xb0\n[   42.314180]  dump_stack+0x14/0x2c\n[   42.317492]  __lock_acquire+0x1b24/0x1b50\n[   42.321502]  lock_acquire+0x120/0x3a8\n[   42.325162]  __mutex_lock+0x84/0x8f8\n[   42.328737]  mutex_lock_nested+0x30/0x58\n[   42.332658]  genpd_lock_mtx+0x14/0x20\n[   42.336319]  genpd_runtime_resume+0xc4/0x228\n[   42.340587]  __rpm_callback+0x44/0x170\n[   42.344337]  rpm_callback+0x64/0x70\n[   42.347824]  rpm_resume+0x4e0/0x6b8\n[   42.351310]  __pm_runtime_resume+0x50/0x78\n[   42.355404]  rzg2l_wdt_restart+0x28/0x68\n[   42.359329]  watchdog_restart_notifier+0x1c/0x30\n[   42.363943]  atomic_notifier_call_chain+0x94/0x150\n[   42.368732]  do_kernel_restart+0x24/0x30\n[   42.372652]  machine_restart+0x44/0x70\n[   42.376399]  kernel_restart+0x3c/0x60\n[   42.380058]  __do_sys_reboot+0x228/0x250\n[   42.383977]  __arm64_sys_reboot+0x20/0x28\n[   42.387983]  invoke_syscall+0x40/0xf8",
  "id": "GHSA-h447-c2wm-jgwc",
  "modified": "2025-10-21T12:31:25Z",
  "published": "2025-10-21T12:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49383"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a635239cd5484d8f2e702713ccc49ec82aa7594"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6505541e5298cea2b79da68ee626f583f8e18784"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4cf89596c1f1e33309556699f910ced4abbaf44"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49383 (GCVE-0-2022-49383)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:11 – Updated: 2026-05-11 18:58

Title

watchdog: rzg2l_wdt: Fix 'BUG: Invalid wait context'

Summary

In the Linux kernel, the following vulnerability has been resolved: watchdog: rzg2l_wdt: Fix 'BUG: Invalid wait context' This patch fixes the issue 'BUG: Invalid wait context' during restart() callback by using clk_prepare_enable() instead of pm_runtime_get_sync() for turning on the clocks during restart. This issue is noticed when testing with renesas_defconfig. [ 42.213802] reboot: Restarting system [ 42.217860] [ 42.219364] ============================= [ 42.223368] [ BUG: Invalid wait context ] [ 42.227372] 5.17.0-rc5-arm64-renesas-00002-g10393723e35e #522 Not tainted [ 42.234153] ----------------------------- [ 42.238155] systemd-shutdow/1 is trying to lock: [ 42.242766] ffff00000a650828 (&genpd->mlock){+.+.}-{3:3}, at: genpd_lock_mtx+0x14/0x20 [ 42.250709] other info that might help us debug this: [ 42.255753] context-{4:4} [ 42.258368] 2 locks held by systemd-shutdow/1: [ 42.262806] #0: ffff80000944e1c8 (system_transition_mutex#2){+.+.}-{3:3}, at: __do_sys_reboot+0xd0/0x250 [ 42.272388] #1: ffff8000094c4e40 (rcu_read_lock){....}-{1:2}, at: atomic_notifier_call_chain+0x0/0x150 [ 42.281795] stack backtrace: [ 42.284672] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.17.0-rc5-arm64-renesas-00002-g10393723e35e #522 [ 42.294577] Hardware name: Renesas SMARC EVK based on r9a07g044c2 (DT) [ 42.301096] Call trace: [ 42.303538] dump_backtrace+0xcc/0xd8 [ 42.307203] show_stack+0x14/0x30 [ 42.310517] dump_stack_lvl+0x88/0xb0 [ 42.314180] dump_stack+0x14/0x2c [ 42.317492] __lock_acquire+0x1b24/0x1b50 [ 42.321502] lock_acquire+0x120/0x3a8 [ 42.325162] __mutex_lock+0x84/0x8f8 [ 42.328737] mutex_lock_nested+0x30/0x58 [ 42.332658] genpd_lock_mtx+0x14/0x20 [ 42.336319] genpd_runtime_resume+0xc4/0x228 [ 42.340587] __rpm_callback+0x44/0x170 [ 42.344337] rpm_callback+0x64/0x70 [ 42.347824] rpm_resume+0x4e0/0x6b8 [ 42.351310] __pm_runtime_resume+0x50/0x78 [ 42.355404] rzg2l_wdt_restart+0x28/0x68 [ 42.359329] watchdog_restart_notifier+0x1c/0x30 [ 42.363943] atomic_notifier_call_chain+0x94/0x150 [ 42.368732] do_kernel_restart+0x24/0x30 [ 42.372652] machine_restart+0x44/0x70 [ 42.376399] kernel_restart+0x3c/0x60 [ 42.380058] __do_sys_reboot+0x228/0x250 [ 42.383977] __arm64_sys_reboot+0x20/0x28 [ 42.387983] invoke_syscall+0x40/0xf8

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/6505541e5298cea2b…
https://git.kernel.org/stable/c/0a635239cd5484d8f…
https://git.kernel.org/stable/c/e4cf89596c1f1e333…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2cbc5cd0b55fa2310cc557c77b0665f5e00272de , < 6505541e5298cea2b79da68ee626f583f8e18784 (git) Affected: 2cbc5cd0b55fa2310cc557c77b0665f5e00272de , < 0a635239cd5484d8f2e702713ccc49ec82aa7594 (git) Affected: 2cbc5cd0b55fa2310cc557c77b0665f5e00272de , < e4cf89596c1f1e33309556699f910ced4abbaf44 (git)
Linux	Linux	Affected: 5.17 Unaffected: 0 , < 5.17 (semver) Unaffected: 5.17.15 , ≤ 5.17.* (semver) Unaffected: 5.18.4 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/watchdog/rzg2l_wdt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6505541e5298cea2b79da68ee626f583f8e18784",
              "status": "affected",
              "version": "2cbc5cd0b55fa2310cc557c77b0665f5e00272de",
              "versionType": "git"
            },
            {
              "lessThan": "0a635239cd5484d8f2e702713ccc49ec82aa7594",
              "status": "affected",
              "version": "2cbc5cd0b55fa2310cc557c77b0665f5e00272de",
              "versionType": "git"
            },
            {
              "lessThan": "e4cf89596c1f1e33309556699f910ced4abbaf44",
              "status": "affected",
              "version": "2cbc5cd0b55fa2310cc557c77b0665f5e00272de",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/watchdog/rzg2l_wdt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.4",
              "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": "5.17.15",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18.4",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: rzg2l_wdt: Fix \u0027BUG: Invalid wait context\u0027\n\nThis patch fixes the issue \u0027BUG: Invalid wait context\u0027 during restart()\ncallback by using clk_prepare_enable() instead of pm_runtime_get_sync()\nfor turning on the clocks during restart.\n\nThis issue is noticed when testing with renesas_defconfig.\n\n[   42.213802] reboot: Restarting system\n[   42.217860]\n[   42.219364] =============================\n[   42.223368] [ BUG: Invalid wait context ]\n[   42.227372] 5.17.0-rc5-arm64-renesas-00002-g10393723e35e #522 Not tainted\n[   42.234153] -----------------------------\n[   42.238155] systemd-shutdow/1 is trying to lock:\n[   42.242766] ffff00000a650828 (\u0026genpd-\u003emlock){+.+.}-{3:3}, at: genpd_lock_mtx+0x14/0x20\n[   42.250709] other info that might help us debug this:\n[   42.255753] context-{4:4}\n[   42.258368] 2 locks held by systemd-shutdow/1:\n[   42.262806]  #0: ffff80000944e1c8 (system_transition_mutex#2){+.+.}-{3:3}, at: __do_sys_reboot+0xd0/0x250\n[   42.272388]  #1: ffff8000094c4e40 (rcu_read_lock){....}-{1:2}, at: atomic_notifier_call_chain+0x0/0x150\n[   42.281795] stack backtrace:\n[   42.284672] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.17.0-rc5-arm64-renesas-00002-g10393723e35e #522\n[   42.294577] Hardware name: Renesas SMARC EVK based on r9a07g044c2 (DT)\n[   42.301096] Call trace:\n[   42.303538]  dump_backtrace+0xcc/0xd8\n[   42.307203]  show_stack+0x14/0x30\n[   42.310517]  dump_stack_lvl+0x88/0xb0\n[   42.314180]  dump_stack+0x14/0x2c\n[   42.317492]  __lock_acquire+0x1b24/0x1b50\n[   42.321502]  lock_acquire+0x120/0x3a8\n[   42.325162]  __mutex_lock+0x84/0x8f8\n[   42.328737]  mutex_lock_nested+0x30/0x58\n[   42.332658]  genpd_lock_mtx+0x14/0x20\n[   42.336319]  genpd_runtime_resume+0xc4/0x228\n[   42.340587]  __rpm_callback+0x44/0x170\n[   42.344337]  rpm_callback+0x64/0x70\n[   42.347824]  rpm_resume+0x4e0/0x6b8\n[   42.351310]  __pm_runtime_resume+0x50/0x78\n[   42.355404]  rzg2l_wdt_restart+0x28/0x68\n[   42.359329]  watchdog_restart_notifier+0x1c/0x30\n[   42.363943]  atomic_notifier_call_chain+0x94/0x150\n[   42.368732]  do_kernel_restart+0x24/0x30\n[   42.372652]  machine_restart+0x44/0x70\n[   42.376399]  kernel_restart+0x3c/0x60\n[   42.380058]  __do_sys_reboot+0x228/0x250\n[   42.383977]  __arm64_sys_reboot+0x20/0x28\n[   42.387983]  invoke_syscall+0x40/0xf8"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:58:37.994Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6505541e5298cea2b79da68ee626f583f8e18784"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a635239cd5484d8f2e702713ccc49ec82aa7594"
        },
        {
          "url": "https://git.kernel.org/stable/c/e4cf89596c1f1e33309556699f910ced4abbaf44"
        }
      ],
      "title": "watchdog: rzg2l_wdt: Fix \u0027BUG: Invalid wait context\u0027",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49383",
    "datePublished": "2025-02-26T02:11:19.768Z",
    "dateReserved": "2025-02-26T02:08:31.559Z",
    "dateUpdated": "2026-05-11T18:58:37.994Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-H447-C2WM-JGWC

CVE-2022-49383 (GCVE-0-2022-49383)

Tags

Sightings

Nomenclature