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CVE-2021-47480

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CVE-2021-47480

Published: May 22, 2024

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
65110b2168950a19cc78b5027ed18cb811fbdae8 - < 1105573d964f7b78734348466b01f5f6ba8a1813
affected
65110b2168950a19cc78b5027ed18cb811fbdae8 - < 8e4814a461787e15a31d322d9efbe0d4f6822428
affected
65110b2168950a19cc78b5027ed18cb811fbdae8 - < 61a0faa89f21861d1f8d059123b5c285a5d9ffee
affected
65110b2168950a19cc78b5027ed18cb811fbdae8 - < c2df161f69fb1c67f63adbd193368b47f511edc0
affected
65110b2168950a19cc78b5027ed18cb811fbdae8 - < 1ce287eff9f23181d5644db787f472463a61f68b

+3 more versions

Linux

Linux

affected
2.6.16
unaffected
0 - < 2.6.16
unaffected
4.4.292 - <= 4.4.*
unaffected
4.9.290 - <= 4.9.*
unaffected
4.14.255 - <= 4.14.*

+5 more versions

References

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