{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49826", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.228Z", "datePublished": "2025-05-01T14:09:46.145Z", "dateUpdated": "2025-05-04T08:46:15.287Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:46:15.287Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-transport: fix double ata_host_put() in ata_tport_add()\n\nIn the error path in ata_tport_add(), when calling put_device(),\nata_tport_release() is called, it will put the refcount of 'ap->host'.\n\nAnd then ata_host_put() is called again, the refcount is decreased\nto 0, ata_host_release() is called, all ports are freed and set to\nnull.\n\nWhen unbinding the device after failure, ata_host_stop() is called\nto release the resources, it leads a null-ptr-deref(), because all\nthe ports all freed and null.\n\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000008\nCPU: 7 PID: 18671 Comm: modprobe Kdump: loaded Tainted: G E 6.1.0-rc3+ #8\npstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : ata_host_stop+0x3c/0x84 [libata]\nlr : release_nodes+0x64/0xd0\nCall trace:\n ata_host_stop+0x3c/0x84 [libata]\n release_nodes+0x64/0xd0\n devres_release_all+0xbc/0x1b0\n device_unbind_cleanup+0x20/0x70\n really_probe+0x158/0x320\n __driver_probe_device+0x84/0x120\n driver_probe_device+0x44/0x120\n __driver_attach+0xb4/0x220\n bus_for_each_dev+0x78/0xdc\n driver_attach+0x2c/0x40\n bus_add_driver+0x184/0x240\n driver_register+0x80/0x13c\n __pci_register_driver+0x4c/0x60\n ahci_pci_driver_init+0x30/0x1000 [ahci]\n\nFix this by removing redundant ata_host_put() in the error path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/ata/libata-transport.c"], "versions": [{"version": "2623c7a5f2799569d8bb05eb211da524a8144cb3", "lessThan": "30e12e2be27ac6c4be2af4163c70db381364706f", "status": "affected", "versionType": "git"}, {"version": "2623c7a5f2799569d8bb05eb211da524a8144cb3", "lessThan": "bec9ded5404cb14e5f5470103d0973a2ff83d6a5", "status": "affected", "versionType": "git"}, {"version": "2623c7a5f2799569d8bb05eb211da524a8144cb3", "lessThan": "ac471468f7c16cda2525909946ca13ddbcd14000", "status": "affected", "versionType": "git"}, {"version": "2623c7a5f2799569d8bb05eb211da524a8144cb3", "lessThan": "377ff82c33c0cb74562a353361b64b33c09562cf", "status": "affected", "versionType": "git"}, {"version": "2623c7a5f2799569d8bb05eb211da524a8144cb3", "lessThan": "865a6da40ba092c18292ae5f6194756131293745", "status": "affected", "versionType": "git"}, {"version": "2623c7a5f2799569d8bb05eb211da524a8144cb3", "lessThan": "8c76310740807ade5ecdab5888f70ecb6d35732e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/ata/libata-transport.c"], "versions": [{"version": "4.17", "status": "affected"}, {"version": "0", "lessThan": "4.17", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.267", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.225", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.156", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.80", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.10", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "4.19.267"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "5.4.225"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "5.10.156"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "5.15.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/30e12e2be27ac6c4be2af4163c70db381364706f"}, {"url": "https://git.kernel.org/stable/c/bec9ded5404cb14e5f5470103d0973a2ff83d6a5"}, {"url": "https://git.kernel.org/stable/c/ac471468f7c16cda2525909946ca13ddbcd14000"}, {"url": "https://git.kernel.org/stable/c/377ff82c33c0cb74562a353361b64b33c09562cf"}, {"url": "https://git.kernel.org/stable/c/865a6da40ba092c18292ae5f6194756131293745"}, {"url": "https://git.kernel.org/stable/c/8c76310740807ade5ecdab5888f70ecb6d35732e"}], "title": "ata: libata-transport: fix double ata_host_put() in ata_tport_add()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-transport: fix double ata_host_put() in ata_tport_add()\n\nIn the error path in ata_tport_add(), when calling put_device(),\nata_tport_release() is called, it will put the refcount of 'ap->host'.\n\nAnd then ata_host_put() is called again, the refcount is decreased\nto 0, ata_host_release() is called, all ports are freed and set to\nnull.\n\nWhen unbinding the device after failure, ata_host_stop() is called\nto release the resources, it leads a null-ptr-deref(), because all\nthe ports all freed and null.\n\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000008\nCPU: 7 PID: 18671 Comm: modprobe Kdump: loaded Tainted: G E 6.1.0-rc3+ #8\npstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : ata_host_stop+0x3c/0x84 [libata]\nlr : release_nodes+0x64/0xd0\nCall trace:\n ata_host_stop+0x3c/0x84 [libata]\n release_nodes+0x64/0xd0\n devres_release_all+0xbc/0x1b0\n device_unbind_cleanup+0x20/0x70\n really_probe+0x158/0x320\n __driver_probe_device+0x84/0x120\n driver_probe_device+0x44/0x120\n __driver_attach+0xb4/0x220\n bus_for_each_dev+0x78/0xdc\n driver_attach+0x2c/0x40\n bus_add_driver+0x184/0x240\n driver_register+0x80/0x13c\n __pci_register_driver+0x4c/0x60\n ahci_pci_driver_init+0x30/0x1000 [ahci]\n\nFix this by removing redundant ata_host_put() in the error path."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ata: libata-transport: correcci\u00f3n de un error doble de ata_host_put() en ata_tport_add(). En la ruta de error de ata_tport_add(), al llamar a put_device(), se llama a ata_tport_release(), lo que resta el recuento de referencias de 'ap->host'. A continuaci\u00f3n, se vuelve a llamar a ata_host_put(), el recuento de referencias se reduce a 0 y se llama a ata_host_release(), liberando todos los puertos y estableci\u00e9ndolos en nulo. Al desvincular el dispositivo tras un fallo, se llama a ata_host_stop() para liberar los recursos, lo que genera un error null-ptr-deref(), ya que todos los puertos est\u00e1n liberados y en nulo. No se puede manejar la desreferencia del puntero NULL del n\u00facleo en la direcci\u00f3n virtual 0000000000000008 CPU: 7 PID: 18671 Comm: modprobe Kdump: cargado Contaminado: GE 6.1.0-rc3+ #8 pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ata_host_stop+0x3c/0x84 [libata] lr : release_nodes+0x64/0xd0 Rastreo de llamadas: ata_host_stop+0x3c/0x84 [libata] release_nodes+0x64/0xd0 devres_release_all+0xbc/0x1b0 device_unbind_cleanup+0x20/0x70 really_probe+0x158/0x320 __driver_probe_device+0x84/0x120 driver_probe_device+0x44/0x120 __driver_attach+0xb4/0x220 bus_for_each_dev+0x78/0xdc driver_attach+0x2c/0x40 bus_add_driver+0x184/0x240 driver_register+0x80/0x13c __pci_register_driver+0x4c/0x60 ahci_pci_driver_init+0x30/0x1000 [ahci] Solucione esto eliminando ata_host_put() redundante en la ruta de error."}], "id": "CVE-2022-49826", "lastModified": "2025-05-02T13:53:20.943", "metrics": {}, "published": "2025-05-01T15:16:06.043", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/30e12e2be27ac6c4be2af4163c70db381364706f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/377ff82c33c0cb74562a353361b64b33c09562cf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/865a6da40ba092c18292ae5f6194756131293745"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8c76310740807ade5ecdab5888f70ecb6d35732e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ac471468f7c16cda2525909946ca13ddbcd14000"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bec9ded5404cb14e5f5470103d0973a2ff83d6a5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: ata: libata-transport: fix double ata_host_put() in ata_tport_add()", "id": "2363506", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363506"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nata: libata-transport: fix double ata_host_put() in ata_tport_add()\nIn the error path in ata_tport_add(), when calling put_device(),\nata_tport_release() is called, it will put the refcount of 'ap->host'.\nAnd then ata_host_put() is called again, the refcount is decreased\nto 0, ata_host_release() is called, all ports are freed and set to\nnull.\nWhen unbinding the device after failure, ata_host_stop() is called\nto release the resources, it leads a null-ptr-deref(), because all\nthe ports all freed and null.\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000008\nCPU: 7 PID: 18671 Comm: modprobe Kdump: loaded Tainted: G E 6.1.0-rc3+ #8\npstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : ata_host_stop+0x3c/0x84 [libata]\nlr : release_nodes+0x64/0xd0\nCall trace:\nata_host_stop+0x3c/0x84 [libata]\nrelease_nodes+0x64/0xd0\ndevres_release_all+0xbc/0x1b0\ndevice_unbind_cleanup+0x20/0x70\nreally_probe+0x158/0x320\n__driver_probe_device+0x84/0x120\ndriver_probe_device+0x44/0x120\n__driver_attach+0xb4/0x220\nbus_for_each_dev+0x78/0xdc\ndriver_attach+0x2c/0x40\nbus_add_driver+0x184/0x240\ndriver_register+0x80/0x13c\n__pci_register_driver+0x4c/0x60\nahci_pci_driver_init+0x30/0x1000 [ahci]\nFix this by removing redundant ata_host_put() in the error path."], "name": "CVE-2022-49826", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49826\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49826\nhttps://lore.kernel.org/linux-cve-announce/2025050135-CVE-2022-49826-a060@gregkh/T"], "threat_severity": "Moderate"}