5.5

CVE-2021-47480

scsi: core: Put LLD module refcnt after SCSI device is released

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.4.292
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.290
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.255
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.216
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.158
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.78
Linux ≫ Linux Kernel Version >= 5.11 < 5.14.17
Linux ≫ Linux Kernel Version5.15 Updaterc1
Linux ≫ Linux Kernel Version5.15 Updaterc2
Linux ≫ Linux Kernel Version5.15 Updaterc3
Linux ≫ Linux Kernel Version5.15 Updaterc4
Linux ≫ Linux Kernel Version5.15 Updaterc5
Linux ≫ Linux Kernel Version5.15 Updaterc6
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.111
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813
Patch
https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b
Patch
https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee
Patch
https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f
Patch
https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428
Patch
https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0
Patch
https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f
Patch
https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836
Patch