Date: Wed, 31 Aug 2022 15:15:40 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 266115] bad use of user pointer in cam_ioctl() CTL_PORT_REQ Message-ID: <bug-266115-227-cfrt0sUEno@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-266115-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266115 --- Comment #1 from Robert Morris <rtm@lcs.mit.edu> --- Similarly, for a CTL_LUN_REQ ioctl, if the user program sets backend[] to "block", lun_req->result_nvl to e.g. 0x8000000000000000, and lun_req->result to NULL, backend->ioctl() (which is ctl_be_block_ioctl()) won't modify reslt_nvl, but ctl_ioctl() will call nvlist_destroy(lun_req->result_nvl), causing a crash. -- You are receiving this mail because: You are the assignee for the bug.home | help
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