led: qcom-lpg: Fix sleeping in atomic

{
  "id": "8bf3397a15ca6a85f76cde4aa956cef8c6ee7ddec1ee0afc6e538041121fb106",
  "url": "https://osv.dev/vulnerability/CVE-2022-50371",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "led: qcom-lpg: Fix sleeping in atomic",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: led: qcom-lpg: Fix sleeping in atomic lpg_brighness_set() function can sleep, while led's brightness_set() callback must be non-blocking. Change LPG driver to use brightness_set_blocking() instead. BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/0 preempt_count: 101, expected: 0 INFO: lockdep is turned off. CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 6.1.0-rc1-00014-gbe99b089c6fc-dirty #85 Hardware name: Qualcomm Technologies, Inc. DB820c (DT) Call trace: dump_backtrace.part.0+0xe4/0xf0 show_stack+0x18/0x40 dump_stack_lvl+0x88/0xb4 dump_stack+0x18/0x34 __might_resched+0x170/0x254 __might_sleep+0x48/0x9c __mutex_lock+0x4c/0x400 mutex_lock_nested+0x2c/0x40 lpg_brightness_single_set+0x40/0x90 led_set_brightness_nosleep+0x34/0x60 led_heartbeat_function+0x80/0x170 call_timer_fn+0xb8/0x340 __run_timers.part.0+0x20c/0x254 run_timer_softirq+0x3c/0x7c _stext+0x14c/0x578 ____do_softirq+0x10/0x20 call_on_irq_stack+0x2c/0x5c do_softirq_own_stack+0x1c/0x30 __irq_exit_rcu+0x164/0x170 irq_exit_rcu+0x10/0x40 el1_interrupt+0x38/0x50 el1h_64_irq_handler+0x18/0x2c el1h_64_irq+0x64/0x68 cpuidle_enter_state+0xc8/0x380 cpuidle_enter+0x38/0x50 do_idle+0x244/0x2d0 cpu_startup_entry+0x24/0x30 rest_init+0x128/0x1a0 arch_post_acpi_subsys_init+0x0/0x18 start_kernel+0x6f4/0x734 __primary_switched+0xbc/0xc4",
    "evidence": "osv:CVE-2022-50371",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.0.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-50371",
      "aliases": [
        "CVE-2022-50371"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
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              "type": "GIT",
              "events": [
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                  "fixed": "9deba7b51d5ee7a2d93fabb69f9b8189241f90e3"
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                {
                  "fixed": "380304391fa7fb084745f26b4b9a59f4666520c1"
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                  "fixed": "3031993b3474794ecb71b6f969a3e60e4bda9d8a"
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          "database_specific": {
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.19.0"
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                {
                  "fixed": "6.0.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.1.0"
                },
                {
                  "fixed": "6.1.2"
                }
              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50371.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.984381106Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3031993b3474794ecb71b6f969a3e60e4bda9d8a",
        "https://git.kernel.org/stable/c/380304391fa7fb084745f26b4b9a59f4666520c1",
        "https://git.kernel.org/stable/c/9deba7b51d5ee7a2d93fabb69f9b8189241f90e3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50371.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-50371",
        "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/2022/50xxx/CVE-2022-50371.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-50371",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509278,
  "published_at": "2025-09-17T14:56:26.854+00:00"
}