{"id":"CVE-2022-49824","summary":"ata: libata-transport: fix error handling in ata_tlink_add()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-transport: fix error handling in ata_tlink_add()\n\nIn ata_tlink_add(), the return value of transport_add_device() is\nnot checked. As a result, it causes null-ptr-deref while removing\nthe module, because transport_remove_device() is called to remove\nthe device that was not added.\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000000d0\nCPU: 33 PID: 13850 Comm: rmmod Kdump: loaded Tainted: G        W          6.1.0-rc3+ #12\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : device_del+0x48/0x39c\nlr : device_del+0x44/0x39c\nCall trace:\n device_del+0x48/0x39c\n attribute_container_class_device_del+0x28/0x40\n transport_remove_classdev+0x60/0x7c\n attribute_container_device_trigger+0x118/0x120\n transport_remove_device+0x20/0x30\n ata_tlink_delete+0x88/0xb0 [libata]\n ata_tport_delete+0x2c/0x60 [libata]\n ata_port_detach+0x148/0x1b0 [libata]\n ata_pci_remove_one+0x50/0x80 [libata]\n ahci_remove_one+0x4c/0x8c [ahci]\n\nFix this by checking and handling return value of transport_add_device()\nin ata_tlink_add().","modified":"2026-04-03T13:14:24.037819153Z","published":"2025-05-01T14:09:44.852Z","related":["SUSE-SU-2025:01918-1","SUSE-SU-2025:01966-1","SUSE-SU-2025:01982-1","SUSE-SU-2025:01995-1","SUSE-SU-2025:02173-1","SUSE-SU-2025:02262-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49824.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/67b219314628b90b3a314528e177335b0cd5c70b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7377a14598f6b04446c54bc4a50cd249470d6c6f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cf0816f6322c5c37ee52655f928e91ecf32da103"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d5234480ca822bdcf03fe4d6a590ddcb854558f7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49824.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49824"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99"},{"fixed":"7377a14598f6b04446c54bc4a50cd249470d6c6f"},{"fixed":"67b219314628b90b3a314528e177335b0cd5c70b"},{"fixed":"d5234480ca822bdcf03fe4d6a590ddcb854558f7"},{"fixed":"cf0816f6322c5c37ee52655f928e91ecf32da103"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49824.json"}}],"schema_version":"1.7.5"}