scsi: iscsi: Restrict sessions and handles to admin capabilities

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commit 688e8128b7 upstream.

Protect the iSCSI transport handle, available in sysfs, by requiring
CAP_SYS_ADMIN to read it. Also protect the netlink socket by restricting
reception of messages to ones sent with CAP_SYS_ADMIN. This disables
normal users from being able to end arbitrary iSCSI sessions.

Cc: stable@vger.kernel.org
Reported-by: Adam Nichols <adam@grimm-co.com>
Reviewed-by: Chris Leech <cleech@redhat.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Lee Duncan 2021-02-23 13:06:24 -08:00 • committed by Greg Kroah-Hartman

parent d8a3801056

commit c71edc5d24

1 changed files with 6 additions and 0 deletions

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drivers/scsi/scsi_transport_iscsi.c

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