CVE-2021-47480
N/A
N/A
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 65110b2168950a19cc78b5027ed18cb811fbdae8 < 1105573d964f7b78734348466b01f5f6ba8a1813 | affected |
| Linux | Linux | 65110b2168950a19cc78b5027ed18cb811fbdae8 < 8e4814a461787e15a31d322d9efbe0d4f6822428 | affected |
| Linux | Linux | 65110b2168950a19cc78b5027ed18cb811fbdae8 < 61a0faa89f21861d1f8d059123b5c285a5d9ffee | affected |
| Linux | Linux | 65110b2168950a19cc78b5027ed18cb811fbdae8 < c2df161f69fb1c67f63adbd193368b47f511edc0 | affected |
| Linux | Linux | 65110b2168950a19cc78b5027ed18cb811fbdae8 < 1ce287eff9f23181d5644db787f472463a61f68b | affected |
| Linux | Linux | 65110b2168950a19cc78b5027ed18cb811fbdae8 < 7b57c38d12aed1b5d92f74748bed25e0d041729f | affected |
| Linux | Linux | 65110b2168950a19cc78b5027ed18cb811fbdae8 < f30822c0b4c35ec86187ab055263943dc71a6836 | affected |
| Linux | Linux | 65110b2168950a19cc78b5027ed18cb811fbdae8 < f2b85040acec9a928b4eb1b57a989324e8e38d3f | affected |
| Linux | Linux | 2.6.16 | affected |
| Linux | Linux | 0 < 2.6.16 | unaffected |
| Linux | Linux | 4.4.292 <= 4.4.* | unaffected |
| Linux | Linux | 4.9.290 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.255 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.216 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.158 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.78 <= 5.10.* | unaffected |
| Linux | Linux | 5.14.17 <= 5.14.* | unaffected |
| Linux | Linux | 5.15 <= * | unaffected |
Weaknesses
ADP Enrichment
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813
- https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428
- https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee
- https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0
- https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b
- https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f
- https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836
- https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813
- https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428
- https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee
- https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0
- https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b
- https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f
- https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836
- https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f
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