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VULNERABILITIES

CVE-2022-49839 Details

Description

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().

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA: CISA-ADPCVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/03aabcb88aeeb7221ddb6196ae84ad5fb17b743f kernel.orgPatch
https://git.kernel.org/stable/c/2f21d653c648735657e23948b1d7ac7273de0f87 kernel.orgPatch
https://git.kernel.org/stable/c/5d7bebf2dfb0dc97aac1fbace0910e557ecdb16f kernel.orgPatch
https://git.kernel.org/stable/c/c736876ee294bb4f271d76a25cc7d70c8537bc5d kernel.orgPatch

Weakness Enumeration

CWE-IDCWE NameSource
CWE-476NULL Pointer Dereference[email protected]
CWE-476NULL Pointer DereferenceCISA-ADP

Affected Products

ProductVersions
linux linux kernel
>= 2.6.14, < 5.10.157
>= 5.11, < 5.15.80
>= 5.16, < 6.0.10
6.1 rc1
6.1 rc2

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-49839
NVD Published Date:
May 1, 2025
NVD Last Modified:
Jun 17, 2026
Source:
kernel.org