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f44e07a8af
linux-next/arch
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Heiko Carstens f44e07a8af s390/crashdump: fix TOD programmable field size 
The size of the TOD programmable field was incorrectly increased from
four to eight bytes with commit 1a2c5840ac ("s390/dump: cleanup CPU
save area handling").
This leads to an elf notes section NT_S390_TODPREG which has a size of
eight instead of four bytes in case of kdump, however even worse is
that the contents is incorrect: it is supposed to contain only the
contents of the TOD programmable field, but in fact contains a mix of
the TOD programmable field (32 bit upper bits) and parts of the CPU
timer register (lower 32 bits).

Fix this by simply changing the size of the todpreg field within the
save area structure. This will implicitly also fix the size of the
corresponding elf notes sections.

This also gets rid of this compile time warning:

in function ‘fortify_memcpy_chk’,
    inlined from ‘save_area_add_regs’ at arch/s390/kernel/crash_dump.c:99:2:
./include/linux/fortify-string.h:413:25: error: call to ‘__read_overflow2_field’
   declared with attribute warning: detected read beyond size of field
   (2nd parameter); maybe use struct_group()? [-Werror=attribute-warning]
  413 |                         __read_overflow2_field(q_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 1a2c5840ac ("s390/dump: cleanup CPU save area handling")
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
2022-11-24 13:45:05 +01:00
..
alpha asm-generic: arch/alpha regression fix for 6.1 2022-10-14 13:47:42 -07:00
arc - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
arm Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
arm64 RISC-V: 2022-10-23 15:00:43 -07:00
csky - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
hexagon - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
ia64 - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
loongarch Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
m68k - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
microblaze - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
mips Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
nios2 - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
openrisc OpenRISC 6.1 Updates 2022-10-15 16:47:33 -07:00
parisc Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
powerpc Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
riscv RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc 2022-10-21 11:52:45 +05:30
s390 s390/crashdump: fix TOD programmable field size 2022-11-24 13:45:05 +01:00
sh - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
sparc Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
um Random number generator fixes for Linux 6.1-rc1. 2022-10-16 15:27:07 -07:00
x86 RISC-V: 2022-10-23 15:00:43 -07:00
xtensa - hfs and hfsplus kmap API modernization from Fabio Francesco 2022-10-12 11:00:22 -07:00
.gitignore
Kconfig - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00