CVE-2021-47258scsi: core: Fix error handling of scsi_host_alloc()
- 5.5MediumCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 41 days later
· 41 days later
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 1fa5ae857bb14f6046205171d98506d8112dd74e – < 8958181c1663e24a13434448e7d6b96b5d04900a
- affected 1fa5ae857bb14f6046205171d98506d8112dd74e – < db08ce595dd64ea9859f7d088b51cbfc8e685c66
- affected 1fa5ae857bb14f6046205171d98506d8112dd74e – < 2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a
- affected 1fa5ae857bb14f6046205171d98506d8112dd74e – < 79296e292d67fa7b5fb8d8c27343683e823872c8
- affected 1fa5ae857bb14f6046205171d98506d8112dd74e – < 7a696ce1d5d16a33a6cd6400bbcc0339b2460e11
- affected 1fa5ae857bb14f6046205171d98506d8112dd74e – < 45d83db4728127944b237c0c8248987df9d478e7
- affected 1fa5ae857bb14f6046205171d98506d8112dd74e – < 66a834d092930cf41d809c0e989b13cd6f9ca006
- affected 2.6.30
- unaffected < 2.6.30
- unaffected 4.9.273 – ≤ 4.9.*
- unaffected 4.14.237 – ≤ 4.14.*
- unaffected 4.19.195 – ≤ 4.19.*
- unaffected 5.4.126 – ≤ 5.4.*
- unaffected 5.10.44 – ≤ 5.10.*
- unaffected 5.12.11 – ≤ 5.12.*
- unaffected 5.13 – ≤ *
References
References7
- https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-33906 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-47258)Record last updated .