Thomas Bogendoerfer 6d9cbae4c0 MIPS: kernel: Clear FPU states when setting up kernel threads ...

commit a58a173444 upstream.

io_uring sets up the io worker kernel thread via a syscall out of an
user space prrocess. This process might have used FPU and since
copy_thread() didn't clear FPU states for kernel threads a BUG()
is triggered for using FPU inside kernel. Move code around
to always clear FPU state for user and kernel threads.

Cc: stable@vger.kernel.org
Reported-by: Aurelien Jarno <aurel32@debian.org>
Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1055021
Suggested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-12-13 18:45:34 +01:00

..

syscalls

arch: Register fchmodat2, usually as syscall 452

2023-07-27 12:25:35 +02:00

.gitignore

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access-helper.h

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asm-offsets.c

mips: asm-offsets: add missing prototypes

2023-06-09 10:18:42 +02:00

bmips_5xxx_init.S

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bmips_vec.S

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branch.c

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cacheinfo.c

drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()

2021-09-01 10:29:10 +02:00

cevt-bcm1480.c

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cevt-ds1287.c

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cevt-gt641xx.c

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cevt-r4k.c

MIPS: cevt-r4k: Offset the value used to clear compare interrupt

2023-02-27 23:45:17 +01:00

cevt-sb1250.c

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cevt-txx9.c

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cmpxchg.c

MIPS: fix typos in comments

2022-05-04 22:22:59 +02:00

cps-vec-ns16550.S

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cps-vec.S

MIPS: smp-cps: Disable coherence setup for unsupported ISA

2023-04-05 09:45:08 +02:00

cpu-probe.c

MIPS: Loongson: Fix cpu_probe_loongson() again

2023-07-03 16:05:51 +02:00

cpu-r3k-probe.c

MIPS: Remove TX39XX support

2022-03-01 10:07:22 +01:00

crash_dump.c

vmcore: convert copy_oldmem_page() to take an iov_iter

2022-04-29 14:37:59 -07:00

crash.c

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csrc-bcm1480.c

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csrc-ioasic.c

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csrc-r4k.c

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csrc-sb1250.c

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early_printk_8250.c

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early_printk.c

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elf.c

MIPS: Modernize READ_IMPLIES_EXEC

2022-02-23 13:08:30 +01:00

entry.S

MIPS: Remove TX39XX support

2022-03-01 10:07:22 +01:00

fpu-probe.c

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fpu-probe.h

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ftrace.c

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genex.S

MIPS: Always use -Wa,-msoft-float and eliminate GAS_HAS_SET_HARDFLOAT

2023-01-26 12:41:16 +09:00

gpio_txx9.c

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head.S

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i8253.c

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idle.c

cpuidle,arch: Mark all regular cpuidle_state:: Enter methods __cpuidle

2023-01-13 11:48:18 +01:00

irq_txx9.c

MIPS: Remove TX39XX support

2022-03-01 10:07:22 +01:00

irq-gt641xx.c

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irq-msc01.c

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irq.c

MIPS: Only use current_stack_pointer on GCC

2022-03-14 15:02:53 +01:00

jump_label.c

MIPS: jump_label: Fix compat branch range check

2022-11-11 15:46:03 +01:00

kgdb.c

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kprobes.c

MIPS: Use NOKPROBE_SYMBOL() instead of __kprobes annotation

2022-05-12 18:00:51 +02:00

linux32.c

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machine_kexec.c

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Makefile

MIPS: Remove deprecated CONFIG_MIPS_CMP

2023-04-12 15:01:09 +02:00

mcount.S

mips: replace #include <asm/export.h> with #include <linux/export.h>

2023-08-15 10:22:23 +02:00

mips-cm.c

MIPS: mips-cm: Check availability of config registers

2023-04-05 09:45:08 +02:00

mips-cpc.c

mips: cpc: Fix refcount leak in mips_cpc_default_phys_base

2022-04-26 15:11:25 +02:00

mips-mt-fpaff.c

MIPS: Replace deprecated CPU-hotplug functions.

2021-08-05 10:57:01 +02:00

mips-mt.c

driver core: class: remove module * from class_create()

2023-03-17 15:16:33 +01:00

mips-r2-to-r6-emul.c

MIPS: Fix build error due to PTR used in more places

2022-01-27 09:04:19 +01:00

module.c

jump_label: mips: move module NOP patching into arch code

2022-06-24 09:48:55 +02:00

octeon_switch.S

mips: remove unneeded #include <asm/export.h>

2023-08-15 10:22:23 +02:00

perf_event_mipsxx.c

MIPS: fix typos in comments

2022-05-04 22:22:59 +02:00

perf_event.c

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perf_regs.c

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pm-cps.c

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pm.c

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probes-common.h

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proc.c

MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK

2022-07-14 11:49:40 +02:00

process.c

MIPS: kernel: Clear FPU states when setting up kernel threads

2023-12-13 18:45:34 +01:00

prom.c

MIPS: move from strlcpy with unused retval to strscpy

2022-09-12 15:34:04 +02:00

ptrace32.c

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ptrace.c

mips: ptrace: user_regset_copyin_ignore() always returns 0

2022-11-15 14:30:40 -08:00

r4k_fpu.S

mips: replace #include <asm/export.h> with #include <linux/export.h>

2023-08-15 10:22:23 +02:00

r4k_switch.S

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r4k-bugs64.c

MIPS: remove asm/war.h

2022-02-22 09:35:49 +01:00

r2300_fpu.S

mips: replace #include <asm/export.h> with #include <linux/export.h>

2023-08-15 10:22:23 +02:00

r2300_switch.S

mips: remove unneeded #include <asm/export.h>

2023-08-15 10:22:23 +02:00

relocate_kernel.S

MIPS: fix duplicate definitions for exported symbols

2022-11-11 15:44:44 +01:00

relocate.c

MIPS: move from strlcpy with unused retval to strscpy

2022-09-12 15:34:04 +02:00

reset.c

mips: Use do_kernel_power_off()

2022-05-19 19:30:31 +02:00

rtlx-mt.c

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rtlx.c

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scall32-o32.S

MIPS: remove asm/war.h

2022-02-22 09:35:49 +01:00

scall64-n32.S

MIPS: Fix build error due to PTR used in more places

2022-01-27 09:04:19 +01:00

scall64-n64.S

MIPS: remove asm/war.h

2022-02-22 09:35:49 +01:00

scall64-o32.S

MIPS: Fix build error due to PTR used in more places

2022-01-27 09:04:19 +01:00

segment.c

mips: kernel: convert to DEFINE_SHOW_ATTRIBUTE

2022-09-19 16:40:17 +02:00

setup.c

Merge tag 'x86-boot-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-06-26 13:39:10 -07:00

signal32.c

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signal_n32.c

MIPS: remove asm/war.h

2022-02-22 09:35:49 +01:00

signal_o32.c

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signal-common.h

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signal.c

Merge tag 'ptrace-cleanups-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2022-03-28 17:29:53 -07:00

smp-bmips.c

MIPS: SMP_CPS: Switch to hotplug core state synchronization

2023-05-15 13:44:58 +02:00

smp-cps.c

Merge tag 'mips_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2023-06-29 15:01:51 -07:00

smp-mt.c

MIPS: Rework smt cmdline parameters

2023-06-09 10:34:14 +02:00

smp-up.c

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smp.c

Merge tag 'mips_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2023-06-29 15:01:51 -07:00

spinlock_test.c

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spram.c

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stacktrace.c

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sync-r4k.c

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syscall.c

MIPS: Fix build error due to PTR used in more places

2022-01-27 09:04:19 +01:00

sysrq.c

tty: sysrq: switch sysrq handlers from int to u8

2023-07-25 19:21:03 +02:00

time.c

MIPS: Fix CP0 counter erratum detection for R4k CPUs

2022-04-29 15:52:00 +02:00

topology.c

drivers/base/node: consolidate node device subsystem initialization in node_dev_init()

2022-03-22 15:57:10 -07:00

traps.c

MIPS: fix fortify panic when copying asm exception handlers

2022-03-07 13:09:28 +01:00

unaligned.c

MIPS: uaccess: emulate Ingenic LXW/LXH/LXHU uaccess

2023-06-09 09:54:17 +02:00

uprobes.c

MIPS: uprobes: Restore thread.trap_nr

2023-04-24 13:31:44 +02:00

vdso.c

treewide: use get_random_u32_below() instead of deprecated function

2022-11-18 02:15:15 +01:00

vmlinux.lds.S

MIPS: Define RUNTIME_DISCARD_EXIT in LD script

2023-04-21 23:59:43 +02:00

vpe-mt.c

drivers: remove struct module * setting from struct class

2023-03-17 15:16:27 +01:00

vpe.c

Merge tag 'mips_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2023-04-27 17:46:52 -07:00

watch.c

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