CVE - CVE-2022-49839

CVE-ID
CVE-2022-49839	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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().
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/03aabcb88aeeb7221ddb6196ae84ad5fb17b743f URL:https://git.kernel.org/stable/c/03aabcb88aeeb7221ddb6196ae84ad5fb17b743f MISC:https://git.kernel.org/stable/c/2f21d653c648735657e23948b1d7ac7273de0f87 URL:https://git.kernel.org/stable/c/2f21d653c648735657e23948b1d7ac7273de0f87 MISC:https://git.kernel.org/stable/c/5d7bebf2dfb0dc97aac1fbace0910e557ecdb16f URL:https://git.kernel.org/stable/c/5d7bebf2dfb0dc97aac1fbace0910e557ecdb16f MISC:https://git.kernel.org/stable/c/c736876ee294bb4f271d76a25cc7d70c8537bc5d URL:https://git.kernel.org/stable/c/c736876ee294bb4f271d76a25cc7d70c8537bc5d
Assigning CNA
kernel.org
Date Record Created
20250501	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250501)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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