CVE-2022-50371 (GCVE-0-2022-50371)
Vulnerability from cvelistv5
Published
2025-09-17 14:56
Modified
2025-09-17 14:56
Severity ?
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
References
Impacted products
Vendor Product Version
Linux Linux Version: 24e2d05d1b68981f22c984c766fabc5a93c83dba
Version: 24e2d05d1b68981f22c984c766fabc5a93c83dba
Version: 24e2d05d1b68981f22c984c766fabc5a93c83dba
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/leds/rgb/leds-qcom-lpg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9deba7b51d5ee7a2d93fabb69f9b8189241f90e3",
              "status": "affected",
              "version": "24e2d05d1b68981f22c984c766fabc5a93c83dba",
              "versionType": "git"
            },
            {
              "lessThan": "380304391fa7fb084745f26b4b9a59f4666520c1",
              "status": "affected",
              "version": "24e2d05d1b68981f22c984c766fabc5a93c83dba",
              "versionType": "git"
            },
            {
              "lessThan": "3031993b3474794ecb71b6f969a3e60e4bda9d8a",
              "status": "affected",
              "version": "24e2d05d1b68981f22c984c766fabc5a93c83dba",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/leds/rgb/leds-qcom-lpg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.2",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nled: qcom-lpg: Fix sleeping in atomic\n\nlpg_brighness_set() function can sleep, while led\u0027s brightness_set()\ncallback must be non-blocking. Change LPG driver to use\nbrightness_set_blocking() instead.\n\nBUG: sleeping function called from invalid context at kernel/locking/mutex.c:580\nin_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/0\npreempt_count: 101, expected: 0\nINFO: lockdep is turned off.\nCPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W          6.1.0-rc1-00014-gbe99b089c6fc-dirty #85\nHardware name: Qualcomm Technologies, Inc. DB820c (DT)\nCall trace:\n dump_backtrace.part.0+0xe4/0xf0\n show_stack+0x18/0x40\n dump_stack_lvl+0x88/0xb4\n dump_stack+0x18/0x34\n __might_resched+0x170/0x254\n __might_sleep+0x48/0x9c\n __mutex_lock+0x4c/0x400\n mutex_lock_nested+0x2c/0x40\n lpg_brightness_single_set+0x40/0x90\n led_set_brightness_nosleep+0x34/0x60\n led_heartbeat_function+0x80/0x170\n call_timer_fn+0xb8/0x340\n __run_timers.part.0+0x20c/0x254\n run_timer_softirq+0x3c/0x7c\n _stext+0x14c/0x578\n ____do_softirq+0x10/0x20\n call_on_irq_stack+0x2c/0x5c\n do_softirq_own_stack+0x1c/0x30\n __irq_exit_rcu+0x164/0x170\n irq_exit_rcu+0x10/0x40\n el1_interrupt+0x38/0x50\n el1h_64_irq_handler+0x18/0x2c\n el1h_64_irq+0x64/0x68\n cpuidle_enter_state+0xc8/0x380\n cpuidle_enter+0x38/0x50\n do_idle+0x244/0x2d0\n cpu_startup_entry+0x24/0x30\n rest_init+0x128/0x1a0\n arch_post_acpi_subsys_init+0x0/0x18\n start_kernel+0x6f4/0x734\n __primary_switched+0xbc/0xc4"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-17T14:56:26.854Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9deba7b51d5ee7a2d93fabb69f9b8189241f90e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/380304391fa7fb084745f26b4b9a59f4666520c1"
        },
        {
          "url": "https://git.kernel.org/stable/c/3031993b3474794ecb71b6f969a3e60e4bda9d8a"
        }
      ],
      "title": "led: qcom-lpg: Fix sleeping in atomic",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50371",
    "datePublished": "2025-09-17T14:56:26.854Z",
    "dateReserved": "2025-09-17T14:53:06.995Z",
    "dateUpdated": "2025-09-17T14:56:26.854Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50371\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-17T15:15:36.070\",\"lastModified\":\"2025-09-18T13:43:34.310\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nled: qcom-lpg: Fix sleeping in atomic\\n\\nlpg_brighness_set() function can sleep, while led\u0027s brightness_set()\\ncallback must be non-blocking. Change LPG driver to use\\nbrightness_set_blocking() instead.\\n\\nBUG: sleeping function called from invalid context at kernel/locking/mutex.c:580\\nin_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/0\\npreempt_count: 101, expected: 0\\nINFO: lockdep is turned off.\\nCPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W          6.1.0-rc1-00014-gbe99b089c6fc-dirty #85\\nHardware name: Qualcomm Technologies, Inc. DB820c (DT)\\nCall trace:\\n dump_backtrace.part.0+0xe4/0xf0\\n show_stack+0x18/0x40\\n dump_stack_lvl+0x88/0xb4\\n dump_stack+0x18/0x34\\n __might_resched+0x170/0x254\\n __might_sleep+0x48/0x9c\\n __mutex_lock+0x4c/0x400\\n mutex_lock_nested+0x2c/0x40\\n lpg_brightness_single_set+0x40/0x90\\n led_set_brightness_nosleep+0x34/0x60\\n led_heartbeat_function+0x80/0x170\\n call_timer_fn+0xb8/0x340\\n __run_timers.part.0+0x20c/0x254\\n run_timer_softirq+0x3c/0x7c\\n _stext+0x14c/0x578\\n ____do_softirq+0x10/0x20\\n call_on_irq_stack+0x2c/0x5c\\n do_softirq_own_stack+0x1c/0x30\\n __irq_exit_rcu+0x164/0x170\\n irq_exit_rcu+0x10/0x40\\n el1_interrupt+0x38/0x50\\n el1h_64_irq_handler+0x18/0x2c\\n el1h_64_irq+0x64/0x68\\n cpuidle_enter_state+0xc8/0x380\\n cpuidle_enter+0x38/0x50\\n do_idle+0x244/0x2d0\\n cpu_startup_entry+0x24/0x30\\n rest_init+0x128/0x1a0\\n arch_post_acpi_subsys_init+0x0/0x18\\n start_kernel+0x6f4/0x734\\n __primary_switched+0xbc/0xc4\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3031993b3474794ecb71b6f969a3e60e4bda9d8a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/380304391fa7fb084745f26b4b9a59f4666520c1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9deba7b51d5ee7a2d93fabb69f9b8189241f90e3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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