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00b55eaf45
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Sven Schnelle 00b55eaf45 s390/vdso: filter out -mstack-guard and -mstack-size 
When CONFIG_VMAP_STACK is disabled, the user can enable CONFIG_STACK_CHECK,
which adds a stack overflow check to each C function in the kernel. This is
also done for functions in the vdso page. These functions are run in user
context and user stack sizes are usually different to what the kernel uses.
This might trigger the stack check although the stack size is valid.
Therefore filter the -mstack-guard and -mstack-size flags when compiling
vdso C files.

Cc: stable@kernel.org # 5.10+
Fixes: 4bff8cb545 ("s390: convert to GENERIC_VDSO")
Reported-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-11-16 12:29:19 +01:00
..
alpha Merge branch 'akpm' (patches from Andrew) 2021-11-09 10:11:53 -08:00
arc Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
arm ARM fixes for 5.16-rc1: 2021-11-14 11:30:50 -08:00
arm64 New x86 features: 2021-11-13 10:01:10 -08:00
csky asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
h8300 Kbuild updates for v5.16 2021-11-08 09:15:45 -08:00
hexagon sched: Add wrapper for get_wchan() to keep task blocked 2021-10-15 11:25:14 +02:00
ia64 asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
m68k Fixes include: 2021-11-11 14:22:05 -08:00
microblaze asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
mips Devicetree fixes for v5.16, take 1: 2021-11-14 11:11:51 -08:00
nds32 Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
nios2 asm-generic: asm/syscall.h cleanup 2021-11-10 11:22:03 -08:00
openrisc Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
parisc parisc/entry: fix trace test in syscall exit path 2021-11-13 22:10:56 +01:00
powerpc mm/migrate.c: remove MIGRATE_PFN_LOCKED 2021-11-11 09:34:35 -08:00
riscv RISC-V Patches for the 5.16 Merge Window, Part 1 2021-11-13 09:15:42 -08:00
s390 s390/vdso: filter out -mstack-guard and -mstack-size 2021-11-16 12:29:19 +01:00
sh arch/sh updates for 5.16 2021-11-14 11:37:49 -08:00
sparc Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
um Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
x86 A single fix for static calls to make the trampoline patching more robust 2021-11-14 10:30:17 -08:00
xtensa Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
.gitignore
Kconfig Tracing updates for 5.16: 2021-11-01 20:05:19 -07:00