Patch Name: PHCO_29348

Patch Description: s700_800 11.00 fuser(1M) cumulative patch

Creation Date: 03/08/24

Post Date: 03/09/15

Hardware Platforms - OS Releases:
	s700: 11.00
	s800: 11.00

Products: N/A

Filesets:
	OS-Core.ADMN-ENG-A-MAN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP
	OS-Core.SYS-ADMIN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP

Automatic Reboot?: No

Status: General Release

Critical: No

Category Tags:
	defect_repair enhancement general_release

Path Name: /hp-ux_patches/s700_800/11.X/PHCO_29348

Symptoms:
	PHCO_29348:
	fuser(1M) is not enabled for non-root execution.  When
	executed by a non-root user,  it exits with the following
	message.
	sh: /usr/sbin/fuser: Execute permission denied.

	PHCO_21901:
	fuser(1m) with -c option does not list the process IDs
	of processes that have automount points of autofs file
	system open.

	PHCO_21573:
	When a file is opened via "fattach", in some cases
	fuser erroneously fails with the error "could not
	obtain file system ID for file /<mountpoint>".

	PHCO_19208:
	The command fuser takes a long time because it calls
	pstat_getprocvm(), where a lot of cycles are spent
	calculating/gathering the variable-sized pages statistics.

Defect Description:
	PHCO_29348:
	Extend fuser usage permissions to non-root users.

	Resolution:
	Appropriate modifications to the install tables were made
	to make fuser permissions to 555.

	PHCO_21901:
	An autofs mount appears in the mount table with a
	filesystem type of "autofs" and a map file. That causes
	fuser(1m) to list the process IDs of processes that
	have this map file open, in stead of a real file
	system under the automount point.

	Resolution:
	Let fuser(1m) to skip the autofs map entry in the mount
	table and locate the real filesystem under the automount
	point.

	PHCO_21573:
	This problem is caused by "special" entries in the kernel's
	vfs list.  This list is traversed by getmount_entry(2) on
	behalf of fuser(1M).  The "special" entries are created by
	the STREAMS function fattach(3), and getmount_entry() for
	these indices fails with EINVAL.

	Resolution:
	The fuser command has been modified, so that, as we are
	 going through the list of kernel mount table entries, if
	getmount_entry() fails with EINVAL, then we have an
	irrelevant file system type.  The entry is skipped and we
	continue with the next one.

	PHCO_19208:
	The defect itself can be described as a performance
	problem when running command fuser on a system with
	a very large shared memory segment and many MMAP files
	to be checked.

	Resolution:
	There is a kernel patch, PHKL_19186, that provides a
	option to the application that does not need these
	variable-sized statistics if pstat_getprocvm() is called.
	The command fuser(1M) skips the process of gathering
	these variable-sized statistics by calling the above
	call with the right 'size' argument.

Enhancement:
	Yes
	PHCO_29348:
	This product update modifies fuser permissions to 555.

SR:
	8606297028 8606140829 8606131423 1653305326

Patch Files:
	
	OS-Core.ADMN-ENG-A-MAN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,
		v=HP:
	/usr/share/man/man1m.Z/fuser.1m

	OS-Core.SYS-ADMIN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	/usr/sbin/fuser

what(1) Output:
	
	OS-Core.ADMN-ENG-A-MAN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,
		v=HP:
	/usr/share/man/man1m.Z/fuser.1m:
		None

	OS-Core.SYS-ADMIN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	/usr/sbin/fuser:
		$Revision: 80.1.1.5 $
		PATCH_11_00: fuser.o 03/08/24

cksum(1) Output:
	
	OS-Core.ADMN-ENG-A-MAN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,
		v=HP:
	2425090417 2341 /usr/share/man/man1m.Z/fuser.1m

	OS-Core.SYS-ADMIN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	941434142 24576 /usr/sbin/fuser

Patch Conflicts: None

Patch Dependencies:
	s700: 11.00: PHKL_19186
	s800: 11.00: PHKL_19186

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHCO_19208 PHCO_21573 PHCO_21901

Equivalent Patches:
	PHCO_29349:
	s700: 11.11
	s800: 11.11

Patch Package Size: 40 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 PHCO_29348

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHCO_29348.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHCO_29348.  If you do not wish to retain a
	copy of the original software, include the patch_save_files
	option in the swinstall command above:

		-x patch_save_files=false

	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 PHCO_29348.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHCO_29348.depot

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

		dd if=/tmp/PHCO_29348.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None