{"id":"CVE-2022-49824","state":"PUBLISHED","title":"ata: libata-transport: fix error handling in ata_tlink_add()","description":"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().","publishedAt":"2025-05-01T14:09:44.852Z","updatedAt":"2026-05-11T19:07:28.894Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99","status":"affected","lessThan":"7377a14598f6b04446c54bc4a50cd249470d6c6f","versionType":"git"},{"version":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99","status":"affected","lessThan":"67b219314628b90b3a314528e177335b0cd5c70b","versionType":"git"},{"version":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99","status":"affected","lessThan":"d5234480ca822bdcf03fe4d6a590ddcb854558f7","versionType":"git"},{"version":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99","status":"affected","lessThan":"cf0816f6322c5c37ee52655f928e91ecf32da103","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ata/libata-transport.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.37","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.37","versionType":"semver"},{"version":"5.10.156","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.80","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.10","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ata/libata-transport.c"]}],"references":["https://git.kernel.org/stable/c/7377a14598f6b04446c54bc4a50cd249470d6c6f","https://git.kernel.org/stable/c/67b219314628b90b3a314528e177335b0cd5c70b","https://git.kernel.org/stable/c/d5234480ca822bdcf03fe4d6a590ddcb854558f7","https://git.kernel.org/stable/c/cf0816f6322c5c37ee52655f928e91ecf32da103"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49824.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49824","state":"PUBLISHED","datePublished":"2025-05-01T14:09:44.852Z","dateUpdated":"2026-05-11T19:07:28.894Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-01T14:05:17.227Z"},"containers":{"cna":{"title":"ata: libata-transport: fix error handling in ata_tlink_add()","descriptions":[{"lang":"en","value":"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()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99","status":"affected","lessThan":"7377a14598f6b04446c54bc4a50cd249470d6c6f","versionType":"git"},{"version":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99","status":"affected","lessThan":"67b219314628b90b3a314528e177335b0cd5c70b","versionType":"git"},{"version":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99","status":"affected","lessThan":"d5234480ca822bdcf03fe4d6a590ddcb854558f7","versionType":"git"},{"version":"d9027470b88631d0956ac37cdadfdeb9cdcf2c99","status":"affected","lessThan":"cf0816f6322c5c37ee52655f928e91ecf32da103","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ata/libata-transport.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.37","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.37","versionType":"semver"},{"version":"5.10.156","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.80","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.10","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ata/libata-transport.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7377a14598f6b04446c54bc4a50cd249470d6c6f"},{"url":"https://git.kernel.org/stable/c/67b219314628b90b3a314528e177335b0cd5c70b"},{"url":"https://git.kernel.org/stable/c/d5234480ca822bdcf03fe4d6a590ddcb854558f7"},{"url":"https://git.kernel.org/stable/c/cf0816f6322c5c37ee52655f928e91ecf32da103"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:07:28.894Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.10.156"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.15.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"6.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}