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

{
  "id": "bb541870e2a10f122cb4f74b521da79dc26709f494b08bee1fba1d034995aaf8",
  "url": "https://osv.dev/vulnerability/CVE-2022-49383",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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] __loc",
    "evidence": "osv:CVE-2022-49383",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.17.15",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-49383",
      "aliases": [
        "CVE-2022-49383"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2cbc5cd0b55fa2310cc557c77b0665f5e00272de"
                },
                {
                  "fixed": "6505541e5298cea2b79da68ee626f583f8e18784"
                },
                {
                  "fixed": "0a635239cd5484d8f2e702713ccc49ec82aa7594"
                },
                {
                  "fixed": "e4cf89596c1f1e33309556699f910ced4abbaf44"
                }
              ]
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49383.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "5.17.15"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "5.18.4"
                }
              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49383.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.286778111Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0a635239cd5484d8f2e702713ccc49ec82aa7594",
        "https://git.kernel.org/stable/c/6505541e5298cea2b79da68ee626f583f8e18784",
        "https://git.kernel.org/stable/c/e4cf89596c1f1e33309556699f910ced4abbaf44",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49383.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49383",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49383.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49383",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 496944,
  "published_at": "2025-02-26T02:11:19.768+00:00"
}