Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ata: libata-transport: fix error handling in ata_tlink_add() In ata_tlink_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: 33 PID: 13850 Comm: rmmod Kdump: loaded Tainted: G W 6.1.0-rc3+ #12 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_tlink_delete+0x88/0xb0 [libata] ata_tport_delete+0x2c/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_tlink_add().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d9027470b88631d0956ac37cdadfdeb9cdcf2c99 before 7377a14598f6b04446c54bc4a50cd249470d6c6f; affected d9027470b88631d0956ac37cdadfdeb9cdcf2c99 before 67b219314628b90b3a314528e177335b0cd5c70b; affected d9027470b88631d0956ac37cdadfdeb9cdcf2c99 before d5234480ca822bdcf03fe4d6a590ddcb854558f7; affected d9027470b88631d0956ac37cdadfdeb9cdcf2c99 before cf0816f6322c5c37ee52655f928e91ecf32da103 |
| Linux / Linux | affected 2.6.37; unaffected 0 before 2.6.37; unaffected 5.10.156 through 5.10.*; unaffected 5.15.80 through 5.15.*; unaffected 6.0.10 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.