CVE-2021-47480 (GCVE-0-2021-47480)

Vulnerability from cvelistv5 – Published: 2024-05-22 08:19 – Updated: 2026-05-11 13:55
VLAI
Title
scsi: core: Put LLD module refcnt after SCSI device is released
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Put LLD module refcnt after SCSI device is released SCSI host release is triggered when SCSI device is freed. We have to make sure that the low-level device driver module won't be unloaded before SCSI host instance is released because shost->hostt is required in the release handler. Make sure to put LLD module refcnt after SCSI device is released. Fixes a kernel panic of 'BUG: unable to handle page fault for address' reported by Changhui and Yi.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:36 UTC
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 1105573d964f7b78734348466b01f5f6ba8a1813 (git)
Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 8e4814a461787e15a31d322d9efbe0d4f6822428 (git)
Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 61a0faa89f21861d1f8d059123b5c285a5d9ffee (git)
Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < c2df161f69fb1c67f63adbd193368b47f511edc0 (git)
Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 1ce287eff9f23181d5644db787f472463a61f68b (git)
Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < 7b57c38d12aed1b5d92f74748bed25e0d041729f (git)
Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < f30822c0b4c35ec86187ab055263943dc71a6836 (git)
Affected: 65110b2168950a19cc78b5027ed18cb811fbdae8 , < f2b85040acec9a928b4eb1b57a989324e8e38d3f (git)
Create a notification for this product.
Linux Linux Affected: 2.6.16
Unaffected: 0 , < 2.6.16 (semver)
Unaffected: 4.4.292 , ≤ 4.4.* (semver)
Unaffected: 4.9.290 , ≤ 4.9.* (semver)
Unaffected: 4.14.255 , ≤ 4.14.* (semver)
Unaffected: 4.19.216 , ≤ 4.19.* (semver)
Unaffected: 5.4.158 , ≤ 5.4.* (semver)
Unaffected: 5.10.78 , ≤ 5.10.* (semver)
Unaffected: 5.14.17 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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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

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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.
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  • 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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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.