{"api_version":"1","generated_at":"2026-04-23T04:22:07+00:00","cve":"CVE-2021-27363","urls":{"html":"https://cve.report/CVE-2021-27363","api":"https://cve.report/api/cve/CVE-2021-27363.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-27363","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-27363"},"summary":{"title":"CVE-2021-27363","description":"An issue was discovered in the Linux kernel through 5.11.3. A kernel pointer leak can be used to determine the address of the iscsi_transport structure. When an iSCSI transport is registered with the iSCSI subsystem, the transport's handle is available to unprivileged users via the sysfs file system, at /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When read, the show_transport_handle function (in drivers/scsi/scsi_transport_iscsi.c) is called, which leaks the handle. 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A kernel pointer leak can be used to determine the address of the iscsi_transport structure. When an iSCSI transport is registered with the iSCSI subsystem, the transport's handle is available to unprivileged users via the sysfs file system, at /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When read, the show_transport_handle function (in drivers/scsi/scsi_transport_iscsi.c) is called, which leaks the handle. This handle is actually the pointer to an iscsi_transport struct in the kernel module's global variables.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"27363","Ordinal":"2","NoteData":"2021-03-06","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"27363","Ordinal":"3","NoteData":"2021-04-09","Type":"Other","Title":"Modified"}]}}}