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63970f3c37
linux/arch/powerpc
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Christophe Leroy 63970f3c37 powerpc/legacy_serial: Fix UBSAN: array-index-out-of-bounds 
UBSAN complains when a pointer is calculated with invalid
'legacy_serial_console' index, allthough the index is verified
before dereferencing the pointer.

Fix it by checking 'legacy_serial_console' validity before
calculating pointers.

Fixes: 0bd3f9e953 ("powerpc/legacy_serial: Use early_ioremap()")
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210511010712.750096-1-mpe@ellerman.id.au
2021-05-12 11:07:39 +10:00
..
boot kbuild: replace LANG=C with LC_ALL=C 2021-05-02 00:43:35 +09:00
configs powerpc updates for 5.13 2021-04-30 12:22:28 -07:00
crypto crypto: powepc/sha1 - remove unneeded semicolon 2021-03-07 15:13:14 +11:00
include powerpc/uaccess: Fix __get_user() with CONFIG_CC_HAS_ASM_GOTO_OUTPUT 2021-05-12 11:07:39 +10:00
kernel powerpc/legacy_serial: Fix UBSAN: array-index-out-of-bounds 2021-05-12 11:07:39 +10:00
kexec powerpc/kexec_file: Use current CPU info while setting up FDT 2021-05-04 22:26:57 +10:00
kvm KVM: PPC: Book3S HV: Fix conversion to gfn-based MMU notifier callbacks 2021-05-06 00:25:42 +10:00
lib powerpc/32: Fix boot failure with CONFIG_STACKPROTECTOR 2021-05-04 22:28:05 +10:00
math-emu powerpc/math: Fix missing __user qualifier for get_user() and other sparse warnings 2021-03-29 13:22:12 +11:00
mm Merge branch 'akpm' (patches from Andrew) 2021-05-05 13:50:15 -07:00
net powerpc/ebpf32: Use standard function call for functions within 32M distance 2021-04-21 22:52:33 +10:00
perf powerpc/perf: Fix the threshold event selection for memory events in power10 2021-04-23 01:38:02 +10:00
platforms powerpc/pseries: warn if recursing into the hcall tracing code 2021-05-12 11:07:39 +10:00
purgatory powerpc/kexec: Don't use .machine ppc64 in trampoline_64.S 2021-04-08 21:17:43 +10:00
sysdev Merge branch 'akpm' (patches from Andrew) 2021-04-30 14:38:01 -07:00
tools powerpc/tools: Remove 90 line limit in checkpatch script 2020-09-08 22:57:11 +10:00
xmon powerpc updates for 5.13 2021-04-30 12:22:28 -07:00
Kbuild
Kconfig Merge branch 'master' into next 2021-05-08 21:12:55 +10:00
Kconfig.debug powerpc: iommu: fix build when neither PCI or IBMVIO is set 2021-04-08 21:17:46 +10:00
Makefile powerpc: Only define _TASK_CPU for 32-bit 2021-04-20 14:22:24 +10:00
Makefile.postlink powerpc: unrel_branch_check.sh: use nm to find symbol value 2020-09-02 11:00:22 +10:00