CVE-2022-50371 (GCVE-0-2022-50371)

Vulnerability from cvelistv5 – Published: 2025-09-17 14:56 – Updated: 2026-05-11 19:18
VLAI?
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
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 24e2d05d1b68981f22c984c766fabc5a93c83dba , < 9deba7b51d5ee7a2d93fabb69f9b8189241f90e3 (git)
Affected: 24e2d05d1b68981f22c984c766fabc5a93c83dba , < 380304391fa7fb084745f26b4b9a59f4666520c1 (git)
Affected: 24e2d05d1b68981f22c984c766fabc5a93c83dba , < 3031993b3474794ecb71b6f969a3e60e4bda9d8a (git)
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Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-50371\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:36:15.417007Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-667\", \"description\": \"CWE-667 Improper Locking\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:36:11.294Z\"}}], \"cna\": {\"title\": \"led: qcom-lpg: Fix sleeping in atomic\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"24e2d05d1b68981f22c984c766fabc5a93c83dba\", \"lessThan\": \"9deba7b51d5ee7a2d93fabb69f9b8189241f90e3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"24e2d05d1b68981f22c984c766fabc5a93c83dba\", \"lessThan\": \"380304391fa7fb084745f26b4b9a59f4666520c1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"24e2d05d1b68981f22c984c766fabc5a93c83dba\", \"lessThan\": \"3031993b3474794ecb71b6f969a3e60e4bda9d8a\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/leds/rgb/leds-qcom-lpg.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.19\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.19\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.0.16\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/leds/rgb/leds-qcom-lpg.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.16\", \"versionStartIncluding\": \"5.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.2\", \"versionStartIncluding\": \"5.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"5.19\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:18:15.752Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-50371\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:18:15.752Z\", \"dateReserved\": \"2025-09-17T14:53:06.995Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-17T14:56:26.854Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.