Marc Hartmayer a0b8033088 zdump: dfi_mem_range_valid: check that unsigned int operation don't wrap ...

Validate that the addition of the parameters @addr and @len given to
`dfi_mem_range_valid()` does not overflow 64bit unsigned integer type.

This fixes the following segmentation fault:

[#0] 0x2aa000084fc → mem_read(mem=0x2aa00021b68 <l+152>, addr=0xffffffffffffffff, buf=0x3ffffffec64, cnt=0xc)
[#1] 0x2aa00009964 → dfi_mem_read(addr=0xfffffffffffffffa, buf=0x3ffffffec64, cnt=0xc)
[#2] 0x2aa00009c86 → dfi_mem_read_rc(addr=0xfffffffffffffffa, buf=0x3ffffffec64, cnt=0xc)
[#3] 0x2aa0000ba42 → dfi_vmcoreinfo_init()
[#4] 0x2aa0000b496 → dfi_init()
[#5] 0x2aa00005aa6 → do_dump_info()
[#6] 0x2aa00005c82 → main(argc=<optimized out>, argv=0x3fffffff118)

Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

2021-10-01 14:59:56 +02:00

..

df_elf.h

zdump: Make use of __packed macro

2019-12-12 18:04:32 +01:00

df_lkcd.h

zdump: Make use of __packed macro

2019-12-12 18:04:32 +01:00

df_s390.c

zdump/dfi: Fix illegal memory access in dfi_cpu_add_from_lc()

2021-10-01 14:59:56 +02:00

df_s390.h

zdump/dfi: Fix illegal memory access in dfi_cpu_add_from_lc()

2021-10-01 14:59:56 +02:00

dfi_devmem.c

Initial s390-tools-2.0.0 import

2017-08-21 10:55:40 +02:00

dfi_elf.c

zdump/dfi_elf: Fix stack buffer overflow in nt_read()

2021-10-01 14:59:56 +02:00

dfi_kdump.c

Initial s390-tools-2.0.0 import

2017-08-21 10:55:40 +02:00

dfi_lkcd.c

zdump/dfi: Fix illegal memory access in dfi_cpu_add_from_lc()

2021-10-01 14:59:56 +02:00

dfi_s390_ext.c

zgetdump: Update zgetdump to process the new dump format

2018-05-07 13:42:03 +02:00

dfi_s390.c

zdump/dfi: Fix illegal memory access in dfi_cpu_add_from_lc()

2021-10-01 14:59:56 +02:00

dfi_s390mv_ext.c

zgetdump: Update zgetdump to process the new dump format

2018-05-07 13:42:03 +02:00

dfi_s390mv.c

zdump/dfi: Fix illegal memory access in dfi_cpu_add_from_lc()

2021-10-01 14:59:56 +02:00

dfi_s390mv.h

zdump: Make use of __packed macro

2019-12-12 18:04:32 +01:00

dfi_s390tape.c

zdump/dfi: Fix illegal memory access in dfi_cpu_add_from_lc()

2021-10-01 14:59:56 +02:00

dfi_vmcoreinfo.c

zdump: Introduce multi-level message logging

2021-10-01 14:53:14 +02:00

dfi.c

zdump: dfi_mem_range_valid: check that unsigned int operation don't wrap

2021-10-01 14:59:56 +02:00

dfi.h

zdump/dfi: Fix illegal memory access in dfi_cpu_add_from_lc()

2021-10-01 14:59:56 +02:00

dfo_elf.c

zgetdump: Adjust zgetdump for ELF formatted dumps

2018-05-07 13:42:03 +02:00

dfo_s390.c

Initial s390-tools-2.0.0 import

2017-08-21 10:55:40 +02:00

dfo.c

zgetdump: Remove superfluous member 'size'

2018-02-16 10:36:27 +01:00

dfo.h

zgetdump: Remove superfluous member 'size'

2018-02-16 10:36:27 +01:00

dt_s390mv_ext.c

zgetdump: Update zgetdump to process the new dump tool

2018-05-07 13:42:03 +02:00

dt_s390mv.c

zgetdump: Update zgetdump to process the new dump tool

2018-05-07 13:42:03 +02:00

dt_s390sv_ext.c

zgetdump: Update zgetdump to process the new dump tool

2018-05-07 13:42:03 +02:00

dt_s390sv.c

zgetdump: Update zgetdump to process the new dump tool

2018-05-07 13:42:03 +02:00

dt_scsi.c

zdump: Make use of __packed macro

2019-12-12 18:04:32 +01:00

dt.c

zgetdump: Update zgetdump to process the new dump tool

2018-05-07 13:42:03 +02:00

dt.h

zgetdump: Update zgetdump to process the new dump tool

2018-05-07 13:42:03 +02:00

Makefile

zdump: Disable warnings about unaligned access to packed struct members

2021-09-30 17:21:29 +02:00

opts.c

zdump: Introduce multi-level message logging

2021-10-01 14:53:14 +02:00

stdout.c

Initial s390-tools-2.0.0 import

2017-08-21 10:55:40 +02:00

zfuse.c

Initial s390-tools-2.0.0 import

2017-08-21 10:55:40 +02:00

zg.c

zdump: catch attempts to seek past end of file in zg_seek()

2021-01-25 13:19:33 +01:00

zg.h

Consolidate ALIGN, __ALIGN_MASK, ARRAY_SIZE macros

2020-03-16 13:39:10 +01:00

zgetdump.8

zgetdump: Update the man page

2018-05-07 13:42:03 +02:00

zgetdump.c

zgetdump: initalize sigact to 0

2021-10-01 14:59:56 +02:00

zgetdump.h

zdump: Introduce multi-level message logging

2021-10-01 14:53:14 +02:00