[Bug 219000] [patch] Integer underflow in efipart_realstrategy when I/O starts after end of disk

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219000

Oleksandr Tymoshenko  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 CC||go...@freebsd.org
 Status|In Progress |Closed

--- Comment #4 from Oleksandr Tymoshenko  ---
There is a commit referencing this PR, but it's still not closed and has been
inactive for some time. Closing the PR as fixed but feel free to re-open it if
the issue hasn't been completely resolved.

Thanks

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[Bug 219000] [patch] Integer underflow in efipart_realstrategy when I/O starts after end of disk

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219000

--- Comment #3 from commit-h...@freebsd.org ---
A commit references this bug:

Author: kevans
Date: Sun Feb 11 02:27:52 UTC 2018
New revision: 329114
URL: https://svnweb.freebsd.org/changeset/base/329114

Log:
  MFC Loader Fixes 2017q3: r320547,r320553,r321621,r321844,r321969,r321991,
  r322037,r322038,r322039,r322040,r322056,r322074,r322542,r322592,r322593,
  r322896,r322923,r323671,r322930,r322931,r322932,r322933,r322934,r322935,
  r322936,r322937,r322938,r322939,r322941,r323062,r323063,r323064,r323065,
  r323100,r323131,r323174,r323258,r323261,r323272,r323367,r323379,r323389,
  r323407,r323428,r323436,r323494,r323496,r323497,r323541,r323554,r323589,
  r323707,r323867,r323885,r323886,r323895,r323896,r323897,r323905,r323906,
  r323907,r323908,r323909,r323952,r323991,r324099,r324558,r326445,r326609,
  r326610

  This batch includes a special kludge to fix powerpc loader build; 
  was included after  there, causing problems with DEBUG_MALLOC bits.
  Include  a little bit earlier to fix the build with the intention
  of removing this when eventually libsa silently replaces stdlib.h with
  stand.h.

  r320547: Link EFI/uboot loaders with -znotext

  r320553: Integer underflow in efipart_realstrategy when I/O starts after end
  of disk

  r321621: Always set the receive mask in loader.efi.

  r321844: Clean up style in print_state(..) and pager_printf(..)

  r321969: Fix the return types for printf and putchar to match their libc

  r321991: Revert r321969

  r322037: Add stpcpy and stpncpy to libstand

  r322038: Add definitions and utilities for EFI drivers

  r322039: Move EFI ZFS functions to libefi

  r322040: Add EFI utility functions to libefi

  r322056: Move EFI fmtdev functionality to libefi

  r322074: libefi/time.c cstyle cleanup

  r322542: loader.efi: repace XXX with real comments in trap.c

  r322592: Remove unused defines.

  r322593: Define proposed GUID for FreeBSD boot loader variables.

  r322896: Make spinconsole platform independent and hook it up into EFI
  loader

  r322923: Hide length of geli passphrase during boot.

  r323671: Fix language used in the r322923.

  r322930: Move efi_main into efi/loader

  r322931: Cleanup efi_main return type

  r322932: Use the loader.efi conventions for the various EFI tables.

  r322933: No need for MK_ZFS around these: they are by their nature only
  active when MK_ZFS is true.

  r322934: _STAND is sometimes defined on the command line. Make the define
  here match.

  r322935: Fix warnings due to type mismatch.

  r322936: Remove useless 'static' for an enum definition.

  r322937: Forward declare struct dsk to avoid warnings when building libi386.

  r322938: Link in libefi for boot1

  r322939: Use efi_devpath_str for debug path info.

  r322941: Eliminate redunant device path matching.

  r323062: Make efichar.c routines available to libefi.

  r323063: boot1.efi: print more info about where boot1.efi is loaded from

  r323064: Exit rather than panic for most errors.

  r323065: Save where we're booted from

  r323100: libstand: nfs_readlink() should return proper return code

  r323131: Revert r322941: Eliminate redundant device matching functions

  r323174: Fix loader bug causing too many pages allocation when bootloader
  is U-Boot

  r323258: ucs2len

  r323261: Fix armv6 build

  r323272: Be consistent and do return (1);

  r323367: Mark init_chroot and init_script variables as deprecated.

  r323379: It's been pointed out that init_script at least is useful w/o

  r323389: loader.efi: chain loader should provide proper device handle

  r323407: boot1 generate-fat: generate all templates at once

  r323428: r323389 breaks the kernel build when WITHOUT_ZFS is defined in
  src.conf

  r323436: boot1: remove BOOT1_MAXSIZE default value

  r323494: loader should support large_dnode

  r323496: libstand: tftp_open() can leak pkt on error

  r323497: libefi: efipart_open should check the status from disk_open

  r323541: libefi: efipart_realstrategy rsize pointer may be NULL

  r323554: Increase EFI boot file size frok 128k to 384k

  r323589: loader: biosmem.c cstyle cleanup

  r323707: loader: biosmem allocate heap just below 4GB

  r323867: libefi: devicename.c cleanups

  r323885: libefi: efi_devpath_match() should return bool

  r323886: libefi: efipart.c should use calloc()

  r323895: libefi: efi_devpath_match local len should be unsigned

  r323896: r323885 did miss efilib.h update

  r323897: efilib.h: typo in structure member description

  r323905: libefi: pdinfo_t pd_unit and pd_open should be unsigned

  r323906: libefi: efipart_strategy() should return ENXIO when there is no
  media

  r323907: libefi: efipart.c cstyle fix for efipart_print_common()

  r323908: libefi: efipart_hdinfo_add_filepath should check strtol result

  r323909: libefi: define EISA PNP constants

  r323952: After the r317886 support for TFTP and NFS can be enable
  simultaneously.

  r323991: 

[Bug 219000] [patch] Integer underflow in efipart_realstrategy when I/O starts after end of disk

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219000

Ed Maste  changed:

   What|Removed |Added

 CC||ema...@freebsd.org
 Status|New |In Progress

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[Bug 219000] [patch] Integer underflow in efipart_realstrategy when I/O starts after end of disk

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219000

--- Comment #2 from commit-h...@freebsd.org ---
A commit references this bug:

Author: allanjude
Date: Sat Jul  1 20:25:22 UTC 2017
New revision: 320553
URL: https://svnweb.freebsd.org/changeset/base/320553

Log:
  Integer underflow in efipart_realstrategy when I/O starts after end of disk

  This fixes an integer underflow in efipart_realstrategy, which causes
  crashes when an I/O operation's start point is after the end of the disk.
  This can happen when trying to detect filesystems on very small disks.
  This can occur if a BIOS freebsd-boot partition exists on a system when the
  EFI loader is being used.

  PR:   219000
  Submitted by: Eric McCorkle 
  Reviewed by:  cem (previous version), tsoome (previous version)
  MFC after:1 week
  Differential Revision:https://reviews.freebsd.org/D10559

Changes:
  head/sys/boot/efi/libefi/efipart.c

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[Bug 219000] [patch] Integer underflow in efipart_realstrategy when I/O starts after end of disk

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219000

Mark Linimon  changed:

   What|Removed |Added

   Keywords||patch

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[Bug 219000] [patch] Integer underflow in efipart_realstrategy when I/O starts after end of disk

[bugzilla-noreply]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219000

Conrad Meyer  changed:

   What|Removed |Added

Summary|Integer underflow in|[patch] Integer underflow
   |efipart_realstrategy when   |in efipart_realstrategy
   |I/O starts after end of |when I/O starts after end
   |disk|of disk

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