Patch Name: PHKL_18802

Patch Description: s700_800 11.04 (VVOS) Potential deadlock in setlabel

Creation Date: 99/06/09

Post Date:  99/11/10

Hardware Platforms - OS Releases:
	s700: 11.04
	s800: 11.04

Products: N/A

Filesets:
	VirtualVaultOS.VVOS-KRN,fr=B.11.04,fa=HP-UX_B.11.04_32,v=HP
	VirtualVaultOS.VVOS-KRN,fr=B.11.04,fa=HP-UX_B.11.04_64,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical: No

Category Tags:
	defect_repair general_release

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_18802

Symptoms:
	PHKL_18802:
	No known symptoms.

Defect Description:
	PHKL_18802:
	There is a potential deadlock when setlabel passes down an
	argument that contains a pointer that hasn't been
	validated.  If setlabel grabs a r/w lock and then calls
	copyin to get the data into kernel space with a pointer
	that would generate a page fault, the page fault handler
	could grab another lock of a higher order creating a
	situation that could lead to a deadlock.

	Resolution:
	The setlabel() system call validates the arguments before
	grabbing any locks.

SR:
	0000000000

Patch Files:
	
	VirtualVaultOS.VVOS-KRN,fr=B.11.04,fa=HP-UX_B.11.04_32,v=HP:
	/usr/conf/lib/libsec.a(sec_calls.o)

	VirtualVaultOS.VVOS-KRN,fr=B.11.04,fa=HP-UX_B.11.04_64,v=HP:
	/usr/conf/lib/libsec.a(sec_calls.o)

what(1) Output:
	
	VirtualVaultOS.VVOS-KRN,fr=B.11.04,fa=HP-UX_B.11.04_32,v=HP:
	/usr/conf/lib/libsec.a(sec_calls.o):
		$Source: kern/sec/sec_calls.c, sysmisc, vvos_rose, r
			ose0008 $ $Date: 99/06/09 14:27:12 $ $Revisi
			on: 1.46.1.19 PATCH_11.04 (PHKL_18802) $

	VirtualVaultOS.VVOS-KRN,fr=B.11.04,fa=HP-UX_B.11.04_64,v=HP:
	/usr/conf/lib/libsec.a(sec_calls.o):
		$Source: kern/sec/sec_calls.c, sysmisc, vvos_rose, r
			ose0008 $ $Date: 99/06/09 14:27:12 $ $Revisi
			on: 1.46.1.19 PATCH_11.04 (PHKL_18802) $

cksum(1) Output:
	
	VirtualVaultOS.VVOS-KRN,fr=B.11.04,fa=HP-UX_B.11.04_32,v=HP:
	4227537936 27556 /usr/conf/lib/libsec.a(sec_calls.o)

	VirtualVaultOS.VVOS-KRN,fr=B.11.04,fa=HP-UX_B.11.04_64,v=HP:
	2973717198 70320 /usr/conf/lib/libsec.a(sec_calls.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 120 KBytes

Installation Instructions:
	Please review all instructions and the Hewlett-Packard
	SupportLine User Guide or your Hewlett-Packard support terms
	and conditions for precautions, scope of license,
	restrictions, and, limitation of liability and warranties,
	before installing this patch.
	------------------------------------------------------------
	1. Back up your system before installing a patch.

	2. Login as root.

	3. Copy the patch to the /tmp directory.

	4. Move to the /tmp directory and unshar the patch:

		cd /tmp
		sh PHKL_18802

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_18802.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_18802.  If you do not wish to retain a
	copy of the original software, use the patch_save_files option:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -x patch_save_files=false -s /tmp/PHKL_18802.depot

	WARNING: If patch_save_files is false when a patch is installed,
		 the patch cannot be deinstalled.  Please be careful
		 when using this feature.

	For future reference, the contents of the PHKL_18802.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_18802.depot

	To put this patch on a magnetic tape and install from the
	tape drive, use the command:

		dd if=/tmp/PHKL_18802.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None