CVE-2021-47480

2024-05-2209:15:09

Debian Security Bug Tracker

security-tracker.debian.org

security vulnerability

scsi module

lld module

refcnt

unix

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.1%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12alllinux< 5.15.3-1linux_5.15.3-1_all.deb
Debian11alllinux< 5.10.84-1linux_5.10.84-1_all.deb
Debian10alllinux< 4.19.232-1linux_4.19.232-1_all.deb
Debian999alllinux< 5.15.3-1linux_5.15.3-1_all.deb
Debian13alllinux< 5.15.3-1linux_5.15.3-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	linux	< 5.15.3-1	linux_5.15.3-1_all.deb
Debian	11	all	linux	< 5.10.84-1	linux_5.10.84-1_all.deb
Debian	10	all	linux	< 4.19.232-1	linux_4.19.232-1_all.deb
Debian	999	all	linux	< 5.15.3-1	linux_5.15.3-1_all.deb
Debian	13	all	linux	< 5.15.3-1	linux_5.15.3-1_all.deb