cbcvebase.
CVE-2021-47503
published 2024-05-24

CVE-2021-47503: In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc() Calling scsi_remove_host()…

PriorityP420medium6.2CVSS 3.1
AVLACLPRNUINSUCNINAH
EPSS
0.25%
16.2th percentile
In the Linux kernel, the following vulnerability has been resolved: scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc() Calling scsi_remove_host() before scsi_add_host() results in a crash: BUG: kernel NULL pointer dereference, address: 0000000000000108 RIP: 0010:device_del+0x63/0x440 Call Trace: device_unregister+0x17/0x60 scsi_remove_host+0xee/0x2a0 pm8001_pci_probe+0x6ef/0x1b90 [pm80xx] local_pci_probe+0x3f/0x90 We cannot call scsi_remove_host() in pm8001_alloc() because scsi_add_host() has not been called yet at that point in time. Function call tree: pm8001_pci_probe() | `- pm8001_pci_alloc() | | | `- pm8001_alloc() | | | `- scsi_remove_host() | `- scsi_add_host()

Affected

12 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.15.15-1 (bookworm)linux 5.15.15-1 (bookworm)
linuxlinux——
linuxlinux>= 05c6c029a44d9f43715577e33e95eba87f44d285 < 1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add1e434d2687e8bc0b3cdc9dd093c0e9047c0b4add
linuxlinux>= 05c6c029a44d9f43715577e33e95eba87f44d285 < f8dccc1bdea7e21b5ec06c957aef8831c772661cf8dccc1bdea7e21b5ec06c957aef8831c772661c
linuxlinux>= 05c6c029a44d9f43715577e33e95eba87f44d285 < 653926205741add87a6cf452e21950eebc6ac10b653926205741add87a6cf452e21950eebc6ac10b
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.92-15.10.92-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 0 < 5.15.15-15.15.15-1
linuxlinux_kernel>= 5.10 < 5.10.855.10.85
linuxlinux_kernel>= 5.11 < 5.15.85.15.8

CVSS provenance

nvdv3.16.2MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv6.2MEDIUM
vendor_debian6.2MEDIUM
vendor_redhat6.2MEDIUM
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