CVE-2022-50532
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
scsi: mpt3sas: Fix possible resource leaks in mpt3sas_transport_port_add()
In mpt3sas_transport_port_add(), if sas_rphy_add() returns error, sas_rphy_free() needs be called to free the resource allocated in sas_end_device_alloc(). Otherwise a kernel crash will happen:
Because transport_add_device() is not called when sas_rphy_add() fails, the device is not added. When sas_rphy_remove() is subsequently called to remove the device in the remove() path, a NULL pointer dereference happens.
Detalles técnicos trazas, registros y código del informe original
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 CPU: 45 PID: 37020 Comm: bash Kdump: loaded Tainted: G W 6.1.0-rc1+ #189 pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : device_del+0x54/0x3d0 lr : device_del+0x37c/0x3d0 Call trace: device_del+0x54/0x3d0 attribute_container_class_device_del+0x28/0x38 transport_remove_classdev+0x6c/0x80 attribute_container_device_trigger+0x108/0x110 transport_remove_device+0x28/0x38 sas_rphy_remove+0x50/0x78 [scsi_transport_sas] sas_port_delete+0x30/0x148 [scsi_transport_sas] do_sas_phy_delete+0x78/0x80 [scsi_transport_sas] device_for_each_child+0x68/0xb0 sas_remove_children+0x30/0x50 [scsi_transport_sas] sas_rphy_remove+0x38/0x78 [scsi_transport_sas] sas_port_delete+0x30/0x148 [scsi_transport_sas] do_sas_phy_delete+0x78/0x80 [scsi_transport_sas] device_for_each_child+0x68/0xb0 sas_remove_children+0x30/0x50 [scsi_transport_sas] sas_remove_host+0x20/0x38 [scsi_transport_sas] scsih_remove+0xd8/0x420 [mpt3sas]
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.16%
- Percentil entre todas las CVEs puntuadas: 4
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-401
Referencias
- https://git.kernel.org/stable/c/6a92129c8f999ff5b122c100ce7f625eb3e98c4b
- https://git.kernel.org/stable/c/6f6768e2fc8638fabdd8802c2ef693d7aef01db1
- https://git.kernel.org/stable/c/78316e9dfc24906dd474630928ed1d3c562b568e
- https://git.kernel.org/stable/c/ce1a69cc85006b494353911b35171da195d79e25
- https://git.kernel.org/stable/c/d17bca3ddfe507874cb826d32721552da12e741f
- https://git.kernel.org/stable/c/d60000cb1195a464080b0efb4949daf7594e0020
JSON original (NVD)
Mostrar
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"integrityImpact": "NONE",
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"attackComplexity": "LOW",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpt3sas: Fix possible resource leaks in mpt3sas_transport_port_add()\n\nIn mpt3sas_transport_port_add(), if sas_rphy_add() returns error,\nsas_rphy_free() needs be called to free the resource allocated in\nsas_end_device_alloc(). Otherwise a kernel crash will happen:\n\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000108\nCPU: 45 PID: 37020 Comm: bash Kdump: loaded Tainted: G W 6.1.0-rc1+ #189\npstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : device_del+0x54/0x3d0\nlr : device_del+0x37c/0x3d0\nCall trace:\n device_del+0x54/0x3d0\n attribute_container_class_device_del+0x28/0x38\n transport_remove_classdev+0x6c/0x80\n attribute_container_device_trigger+0x108/0x110\n transport_remove_device+0x28/0x38\n sas_rphy_remove+0x50/0x78 [scsi_transport_sas]\n sas_port_delete+0x30/0x148 [scsi_transport_sas]\n do_sas_phy_delete+0x78/0x80 [scsi_transport_sas]\n device_for_each_child+0x68/0xb0\n sas_remove_children+0x30/0x50 [scsi_transport_sas]\n sas_rphy_remove+0x38/0x78 [scsi_transport_sas]\n sas_port_delete+0x30/0x148 [scsi_transport_sas]\n do_sas_phy_delete+0x78/0x80 [scsi_transport_sas]\n device_for_each_child+0x68/0xb0\n sas_remove_children+0x30/0x50 [scsi_transport_sas]\n sas_remove_host+0x20/0x38 [scsi_transport_sas]\n scsih_remove+0xd8/0x420 [mpt3sas]\n\nBecause transport_add_device() is not called when sas_rphy_add() fails, the\ndevice is not added. When sas_rphy_remove() is subsequently called to\nremove the device in the remove() path, a NULL pointer dereference happens."
}
],
"lastModified": "2026-06-17T05:23:44.267",
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