CVE-2022-49839

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Source
https://cve.org/CVERecord?id=CVE-2022-49839
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49839.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49839
Downstream
Related
Published
2025-05-01T14:09:55Z
Modified
2026-08-12T03:51:11Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
scsi: scsi_transport_sas: Fix error handling in sas_phy_add()
Details

In the Linux kernel, the following vulnerability has been resolved:

scsi: scsi_transport_sas: Fix error handling in sas_phy_add()

If transport_add_device() fails in sas_phy_add(), the kernel will crash trying to delete the device in transport_remove_device() called from sas_remove_host().

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 CPU: 61 PID: 42829 Comm: rmmod Kdump: loaded Tainted: G W 6.1.0-rc1+ #173 pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : device_del+0x54/0x3d0 lr : device_del+0x37c/0x3d0 Call trace: device_del+0x54/0x3d0 attribute_container_class_device_del+0x28/0x38 transport_remove_classdev+0x6c/0x80 attribute_container_device_trigger+0x108/0x110 transport_remove_device+0x28/0x38 sas_phy_delete+0x30/0x60 [scsi_transport_sas] do_sas_phy_delete+0x6c/0x80 [scsi_transport_sas] device_for_each_child+0x68/0xb0 sas_remove_children+0x40/0x50 [scsi_transport_sas] sas_remove_host+0x20/0x38 [scsi_transport_sas] hisi_sas_remove+0x40/0x68 [hisi_sas_main] hisi_sas_v2_remove+0x20/0x30 [hisi_sas_v2_hw] platform_remove+0x2c/0x60

Fix this by checking and handling return value of transport_add_device() in sas_phy_add().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49839.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
c7ebbbce366c02e5657ac6b6059933fe0353b175
Fixed
03aabcb88aeeb7221ddb6196ae84ad5fb17b743f
Fixed
2f21d653c648735657e23948b1d7ac7273de0f87
Fixed
c736876ee294bb4f271d76a25cc7d70c8537bc5d
Fixed
5d7bebf2dfb0dc97aac1fbace0910e557ecdb16f

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49839.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.14
Fixed
5.10.157
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.80
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.0.10

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49839.json"