Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ata: libata-transport: fix error handling in ata_tport_add() In ata_tport_add(), the return value of transport_add_device() is not checked. As a result, it causes null-ptr-deref while removing the module, because transport_remove_device() is called to remove the device that was not added. Unable to handle kernel NULL pointer dereference at virtual address 00000000000000d0 CPU: 12 PID: 13605 Comm: rmmod Kdump: loaded Tainted: G W 6.1.0-rc3+ #8 pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : device_del+0x48/0x39c lr : device_del+0x44/0x39c Call trace: device_del+0x48/0x39c attribute_container_class_device_del+0x28/0x40 transport_remove_classdev+0x60/0x7c attribute_container_device_trigger+0x118/0x120 transport_remove_device+0x20/0x30 ata_tport_delete+0x34/0x60 [libata] ata_port_detach+0x148/0x1b0 [libata] ata_pci_remove_one+0x50/0x80 [libata] ahci_remove_one+0x4c/0x8c [ahci] Fix this by checking and handling return value of transport_add_device() in ata_tport_add().
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.37, < 5.10.156 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/3613dbe3909dcc637fe6be00e4dc43b4aa0470eePatch
- https://git.kernel.org/stable/c/52d9bb0adae9359711a0c5271430afd3754069e7Patch
- https://git.kernel.org/stable/c/b5362dc1634d8b8d5f30920f33ac11a3276b7ed9Patch
- https://git.kernel.org/stable/c/e7bb1b7a7bf26f6b7372b7b683daece4a42fda02Patch
FAQ
What is CVE-2022-49825?
CVE-2022-49825 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: ata: libata-transport: fix error handling in ata_tport_add() In ata_tport_add(), the return value of transport_add_device() is not...
How severe is CVE-2022-49825?
CVE-2022-49825 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49825?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.