David Engraf 7ce550a01b arm64: signal: nofpsimd: Do not allocate fp/simd context when not available ... commit 0a32c88ddb9af30e8a16d41d7b9b824c27d29459 upstream. Commit 6d502b6ba1 ("arm64: signal: nofpsimd: Handle fp/simd context for signal frames") introduced saving the fp/simd context for signal handling only when support is available. But setup_sigframe_layout() always reserves memory for fp/simd context. The additional memory is not touched because preserve_fpsimd_context() is not called and thus the magic is invalid. This may lead to an error when parse_user_sigframe() checks the fp/simd area and does not find a valid magic number. Signed-off-by: David Engraf <david.engraf@sysgo.com> Reviwed-by: Mark Brown <broonie@kernel.org> Fixes: 6d502b6ba1 ("arm64: signal: nofpsimd: Handle fp/simd context for signal frames") Cc: <stable@vger.kernel.org> # 5.6.x Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20220225104008.820289-1-david.engraf@sysgo.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-08 14:39:54 +02:00
..
probes	arm64: kprobes: Restore local irqflag if kprobes is cancelled	2021-04-28 13:40:02 +02:00
vdso	arm64/vdso: Discard .note.gnu.property sections in vDSO	2021-05-11 14:47:33 +02:00
vdso32	arm64: vdso32: require CROSS_COMPILE_COMPAT for gcc+bfd	2021-12-29 12:25:53 +01:00
.gitignore
acpi_numa.c
acpi_parking_protocol.c
acpi.c	arm64: permit ACPI core to map kernel memory used for table overrides	2020-09-30 22:27:51 +01:00
alternative.c
armv8_deprecated.c
asm-offsets.c
cacheinfo.c	drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()	2021-09-26 14:08:59 +02:00
cpu_errata.c	arm64: Mitigate spectre style branch history side channels	2022-03-11 12:11:53 +01:00
cpu_ops.c
cpu-reset.h
cpu-reset.S
cpufeature.c	arm64: Use the clearbhb instruction in mitigations	2022-03-11 12:11:53 +01:00
cpuidle.c
cpuinfo.c	arm64: cpufeature: add HWCAP for FEAT_RPRES	2022-03-11 12:11:51 +01:00
crash_core.c
crash_dump.c	arm64: kdump: update ppos when reading elfcorehdr	2021-03-30 14:32:03 +02:00
debug-monitors.c
efi-entry.S
efi-header.S	arm64: efi: increase EFI PE/COFF header padding to 64 KB	2020-10-28 14:02:03 +00:00
efi-rt-wrapper.S
efi.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
entry-common.c	arm64: entry: always set GIC_PRIO_PSR_I_SET during entry	2021-05-19 10:13:07 +02:00
entry-fpsimd.S
entry-ftrace.S	arm64: ftrace: add missing BTIs	2021-12-08 09:03:24 +01:00
entry.S	arm64: Use the clearbhb instruction in mitigations	2022-03-11 12:11:53 +01:00
fpsimd.c	arm64/sve: Use correct size when reinitialising SVE state	2021-09-22 12:27:54 +02:00
ftrace.c
head.S	arm64: head: avoid over-mapping in map_memory	2021-09-18 13:40:08 +02:00
hibernate-asm.S
hibernate.c	Merge branch 'for-next/mte' into for-next/core	2020-10-02 12:16:11 +01:00
hw_breakpoint.c
hyp-stub.S
image-vars.h	KVM/arm64 fixes for 5.10, take #1	2020-10-30 13:25:09 -04:00
image.h
insn.c
io.c
irq.c	arm64: entry: move el1 irq/nmi logic to C	2020-11-30 12:11:38 +00:00
jump_label.c
kaslr.c
kexec_image.c	arm64: kexec_file: Fix sparse warning	2020-11-10 13:11:44 +00:00
kgdb.c
kuser32.S
machine_kexec_file.c	arm64: kexec_file: fix memory leakage in create_dtb() when fdt_open_into() fails	2021-03-04 11:38:36 +01:00
machine_kexec.c
Makefile	Merge branch 'for-next/mte' into for-next/core	2020-10-02 12:16:11 +01:00
module-plts.c
module.c
mte.c	arm64: mte: Allow PTRACE_PEEKMTETAGS access to the zero page	2021-02-17 11:02:28 +01:00
paravirt.c
pci.c
perf_callchain.c	perf: Protect perf_guest_cbs with RCU	2022-01-20 09:17:50 +01:00
perf_event.c	arm64: perf: Convert snprintf to sysfs_emit	2021-07-14 16:55:52 +02:00
perf_regs.c	perf/arch: Remove perf_sample_data::regs_user_copy	2020-11-09 18:12:34 +01:00
pointer_auth.c	arm64: reject prctl(PR_PAC_RESET_KEYS) on compat tasks	2020-10-15 10:50:09 +01:00
process.c	arm64: errata: Fix exec handling in erratum 1418040 workaround	2022-02-01 17:25:40 +01:00
proton-pack.c	arm64: proton-pack: Include unprivileged eBPF status in Spectre v2 mitigation reporting	2022-03-11 12:11:53 +01:00
psci.c	arm64: psci: Avoid printing in cpu_psci_cpu_die()	2020-11-10 13:11:44 +00:00
ptrace.c	arm64: fix compat syscall return truncation	2021-08-12 13:22:20 +02:00
reloc_test_core.c
reloc_test_syms.S
relocate_kernel.S
return_address.c
scs.c
sdei.c	arm64: entry: fix NMI {user, kernel}->kernel transitions	2020-11-30 12:11:38 +00:00
setup.c	arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan	2021-07-14 16:56:07 +02:00
signal.c	arm64: signal: nofpsimd: Do not allocate fp/simd context when not available	2022-04-08 14:39:54 +02:00
signal32.c
sigreturn32.S
sleep.S
smccc-call.S
smp_spin_table.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
smp.c	sched/core: Initialize the idle task with preemption disabled	2021-07-14 16:55:50 +02:00
stacktrace.c	arm64: stacktrace: avoid tracing arch_stack_walk()	2021-08-12 13:22:12 +02:00
suspend.c	arm64: spectre: Prevent lockdep splat on v4 mitigation enable path	2021-03-04 11:38:36 +01:00
sys_compat.c
sys.c
sys32.c
syscall.c	arm64: fix compat syscall return truncation	2021-08-12 13:22:20 +02:00
time.c
topology.c	Power management updates for 5.10-rc1	2020-10-14 10:45:41 -07:00
trace-events-emulation.h
traps.c	arm64: entry: fix NMI {user, kernel}->kernel transitions	2020-11-30 12:11:38 +00:00
vdso.c
vmlinux.lds.S	arm64: entry: Allow the trampoline text to occupy multiple pages	2022-03-11 12:11:52 +01:00