CVE-2021-47258 (GCVE-0-2021-47258)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2026-05-11 13:51
VLAI
Title
scsi: core: Fix error handling of scsi_host_alloc()
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix error handling of scsi_host_alloc() After device is initialized via device_initialize(), or its name is set via dev_set_name(), the device has to be freed via put_device(). Otherwise device name will be leaked because it is allocated dynamically in dev_set_name(). Fix the leak by replacing kfree() with put_device(). Since scsi_host_dev_release() properly handles IDA and kthread removal, remove special-casing these from the error handling as well.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-23 18:04 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1fa5ae857bb14f6046205171d98506d8112dd74e , < 8958181c1663e24a13434448e7d6b96b5d04900a (git)
Affected: 1fa5ae857bb14f6046205171d98506d8112dd74e , < db08ce595dd64ea9859f7d088b51cbfc8e685c66 (git)
Affected: 1fa5ae857bb14f6046205171d98506d8112dd74e , < 2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a (git)
Affected: 1fa5ae857bb14f6046205171d98506d8112dd74e , < 79296e292d67fa7b5fb8d8c27343683e823872c8 (git)
Affected: 1fa5ae857bb14f6046205171d98506d8112dd74e , < 7a696ce1d5d16a33a6cd6400bbcc0339b2460e11 (git)
Affected: 1fa5ae857bb14f6046205171d98506d8112dd74e , < 45d83db4728127944b237c0c8248987df9d478e7 (git)
Affected: 1fa5ae857bb14f6046205171d98506d8112dd74e , < 66a834d092930cf41d809c0e989b13cd6f9ca006 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.30
Unaffected: 0 , < 2.6.30 (semver)
Unaffected: 4.9.273 , ≤ 4.9.* (semver)
Unaffected: 4.14.237 , ≤ 4.14.* (semver)
Unaffected: 4.19.195 , ≤ 4.19.* (semver)
Unaffected: 5.4.126 , ≤ 5.4.* (semver)
Unaffected: 5.10.44 , ≤ 5.10.* (semver)
Unaffected: 5.12.11 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
guessed 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

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.



Related by attack behaviour

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.