CVE-2022-50532

  • Published: 2025-10-07T16:15:37.273

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

scsi: mpt3sas: Fix possible resource leaks in mpt3sas_transport_port_add()

In mpt3sas_transport_port_add(), if sas_rphy_add() returns error,
sas_rphy_free() needs be called to free the resource allocated in
sas_end_device_alloc(). Otherwise a kernel crash will happen:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108
CPU: 45 PID: 37020 Comm: bash Kdump: loaded Tainted: G W 6.1.0-rc1+ #189
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_rphy_remove+0x50/0x78 [scsi_transport_sas]
sas_port_delete+0x30/0x148 [scsi_transport_sas]
do_sas_phy_delete+0x78/0x80 [scsi_transport_sas]
device_for_each_child+0x68/0xb0
sas_remove_children+0x30/0x50 [scsi_transport_sas]
sas_rphy_remove+0x38/0x78 [scsi_transport_sas]
sas_port_delete+0x30/0x148 [scsi_transport_sas]
do_sas_phy_delete+0x78/0x80 [scsi_transport_sas]
device_for_each_child+0x68/0xb0
sas_remove_children+0x30/0x50 [scsi_transport_sas]
sas_remove_host+0x20/0x38 [scsi_transport_sas]
scsih_remove+0xd8/0x420 [mpt3sas]

Because transport_add_device() is not called when sas_rphy_add() fails, the
device is not added. When sas_rphy_remove() is subsequently called to
remove the device in the remove() path, a NULL pointer dereference happens.

Related CVE by CWE

No related CWE found.

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How to fix CVE-2022-50532

CVE-2022-50532 is a unknown severity vulnerability affecting the affected product.

Description: In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Fix possible resource leaks in mpt3sas_transport_port_add() In mpt3sas_transport_port_add(), if sas_rphy_add() returns error, sas_rphy_free() needs be called to free the resource allocated in sas_end_device_alloc(). Otherwise a kernel crash will happen: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 CPU: 45 PID: […]

Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public

How to Fix:

1 Identify affected systems

- Check if you're running the affected product

2 Immediate actions

- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access

3 Verification

- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)

4 Long-term prevention

- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations

Exploit Difficulty Assessment

HARD
⏱️ Time to Exploit: > 4 hours
🛠️ Skills Required: Advanced security expertise
💰 Public Exploits: Rare or not public

Vulnerability Timeline

Oct 07, 2025
Vulnerability Published

CVE details first published to NVD database

Nov 12, 2025
Imported to Database

Added to this CVE tracking system

Detection Rules & IOCs

No specific detection rules generated for this vulnerability type.

No vendor/product data available.