CVE-2022-50415 (GCVE-0-2022-50415)
Vulnerability from cvelistv5 – Published: 2025-09-18 16:03 – Updated: 2026-01-14 19:13
VLAI?
Title
parisc: led: Fix potential null-ptr-deref in start_task()
Summary
In the Linux kernel, the following vulnerability has been resolved:
parisc: led: Fix potential null-ptr-deref in start_task()
start_task() calls create_singlethread_workqueue() and not checked the
ret value, which may return NULL. And a null-ptr-deref may happen:
start_task()
create_singlethread_workqueue() # failed, led_wq is NULL
queue_delayed_work()
queue_delayed_work_on()
__queue_delayed_work() # warning here, but continue
__queue_work() # access wq->flags, null-ptr-deref
Check the ret value and return -ENOMEM if it is NULL.
Severity ?
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < c6db0c32f39684c89c97bc1ba1c9c4249ca09e48
(git)
Affected: 3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < fc6d0f65f22040c6cc8a5ce032bf90252629de50 (git) Affected: 3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < fc307b2905a3dd75c50a53b4d87ac9c912fb7c4e (git) Affected: 3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < 5e4500454d75dd249be4695d83afa3ba0724c37e (git) Affected: 3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < 3505c187b86136250b39e62c72a3a70435277af6 (git) Affected: 3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < ac838c663ba1fd6bff35a817fd89a47ab55e88e0 (git) Affected: 3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < 77f8b628affaec692d83ad8bfa3520db8a0cc493 (git) Affected: 3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < 67c98fec87ed76b1feb2ae810051afd88dfa9df6 (git) Affected: 3499495205a676d85fcc2f3c28e35ec9b43c47e3 , < 41f563ab3c33698bdfc3403c7c2e6c94e73681e4 (git) |
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|
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\"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.337\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.303\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.270\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.229\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.163\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.87\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.18\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/parisc/led.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/c6db0c32f39684c89c97bc1ba1c9c4249ca09e48\"}, {\"url\": \"https://git.kernel.org/stable/c/fc6d0f65f22040c6cc8a5ce032bf90252629de50\"}, {\"url\": \"https://git.kernel.org/stable/c/fc307b2905a3dd75c50a53b4d87ac9c912fb7c4e\"}, {\"url\": \"https://git.kernel.org/stable/c/5e4500454d75dd249be4695d83afa3ba0724c37e\"}, {\"url\": \"https://git.kernel.org/stable/c/3505c187b86136250b39e62c72a3a70435277af6\"}, {\"url\": \"https://git.kernel.org/stable/c/ac838c663ba1fd6bff35a817fd89a47ab55e88e0\"}, {\"url\": \"https://git.kernel.org/stable/c/77f8b628affaec692d83ad8bfa3520db8a0cc493\"}, {\"url\": \"https://git.kernel.org/stable/c/67c98fec87ed76b1feb2ae810051afd88dfa9df6\"}, {\"url\": \"https://git.kernel.org/stable/c/41f563ab3c33698bdfc3403c7c2e6c94e73681e4\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nparisc: led: Fix potential null-ptr-deref in start_task()\\n\\nstart_task() calls create_singlethread_workqueue() and not checked the\\nret value, which may return NULL. And a null-ptr-deref may happen:\\n\\nstart_task()\\n create_singlethread_workqueue() # failed, led_wq is NULL\\n queue_delayed_work()\\n queue_delayed_work_on()\\n __queue_delayed_work() # warning here, but continue\\n __queue_work() # access wq-\u003eflags, null-ptr-deref\\n\\nCheck the ret value and return -ENOMEM if it is NULL.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.337\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.303\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.270\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.229\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.163\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.87\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.18\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.4\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2\", \"versionStartIncluding\": \"2.6.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-18T16:03:58.836Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2022-50415\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-14T19:13:09.643Z\", \"dateReserved\": \"2025-09-17T14:53:07.003Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T16:03:58.836Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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