linux-stable/block/partitions
Michael Schmitz 373b9475ea block/partition: fix signedness issue for Amiga partitions
commit 7eb1e47696 upstream.

Making 'blk' sector_t (i.e. 64 bit if LBD support is active) fails the
'blk>0' test in the partition block loop if a value of (signed int) -1 is
used to mark the end of the partition block list.

Explicitly cast 'blk' to signed int to allow use of -1 to terminate the
partition block linked list.

Fixes: b6f3f28f60 ("block: add overflow checks for Amiga partition support")
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Link: https://lore.kernel.org/r/024ce4fa-cc6d-50a2-9aae-3701d0ebf668@xenosoft.de
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Reviewed-by: Martin Steigerwald <martin@lichtvoll.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-07-27 08:37:29 +02:00
..
acorn.c
acorn.h
aix.c
aix.h
amiga.c block/partition: fix signedness issue for Amiga partitions 2023-07-27 08:37:29 +02:00
amiga.h
atari.c
atari.h
check.c
check.h
cmdline.c
cmdline.h
efi.c
efi.h
ibm.c
ibm.h
karma.c
karma.h
Kconfig
ldm.c
ldm.h
mac.c
mac.h
Makefile
msdos.c
msdos.h
osf.c
osf.h
sgi.c
sgi.h
sun.c
sun.h
sysv68.c
sysv68.h
ultrix.c
ultrix.h