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Rich Felker 8971f3183b sh: fix debug trap failure to process signals before return to user 
[ Upstream commit 96a598996f6ac518ac79839ecbb17c91af91f4f7 ]

When responding to a debug trap (breakpoint) in userspace, the
kernel's trap handler raised SIGTRAP but returned from the trap via a
code path that ignored pending signals, resulting in an infinite loop
re-executing the trapping instruction.

Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-30 07:49:07 +02:00
..
alpha locking/xchg/alpha: Fix xchg() and cmpxchg() memory ordering bugs 2018-05-30 07:49:01 +02:00
arc ARC: Fix malformed ARC_EMUL_UNALIGNED default 2018-05-30 07:48:58 +02:00
arm ARM: 8748/1: mm: Define vdso_start, vdso_end as array 2018-05-30 07:49:06 +02:00
arm64 arm64: spinlock: Fix theoretical trylock() A-B-A with LSE atomics 2018-05-30 07:48:56 +02:00
avr32 avr32: off by one in at32_init_pio() 2016-10-07 15:23:45 +02:00
blackfin pinctrl: adi2: Fix Kconfig build problem 2017-12-20 10:05:00 +01:00
c6x c6x/ptrace: Remove useless PTRACE_SETREGSET implementation 2017-03-31 09:49:53 +02:00
cris cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected 2017-01-12 11:22:48 +01:00
frv futex: Remove duplicated code and fix undefined behaviour 2018-05-26 08:48:50 +02:00
h8300 h8300/ptrace: Fix incorrect register transfer count 2017-03-31 09:49:53 +02:00
hexagon futex: Remove duplicated code and fix undefined behaviour 2018-05-26 08:48:50 +02:00
ia64 futex: Remove duplicated code and fix undefined behaviour 2018-05-26 08:48:50 +02:00
m32r m32r: fix __get_user() 2016-09-24 10:07:43 +02:00
m68k m68k: Fix ndelay() macro 2016-12-15 08:49:23 -08:00
metag metag/uaccess: Check access_ok in strncpy_from_user 2017-05-25 14:30:16 +02:00
microblaze futex: Remove duplicated code and fix undefined behaviour 2018-05-26 08:48:50 +02:00
mips MIPS: TXx9: use IS_BUILTIN() for CONFIG_LEDS_CLASS 2018-05-30 07:48:56 +02:00
mn10300 mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy 2018-02-16 20:09:47 +01:00
nios2 nios2: reserve boot memory for device tree 2017-04-12 12:38:34 +02:00
openrisc signal/openrisc: Fix do_unaligned_access to send the proper signal 2018-02-16 20:09:46 +01:00
parisc futex: Remove duplicated code and fix undefined behaviour 2018-05-26 08:48:50 +02:00
powerpc KVM: PPC: Book3S HV: Fix VRMA initialization with 2MB or 1GB memory backing 2018-05-30 07:49:03 +02:00
s390 s390: use expoline thunks in the BPF JIT 2018-05-26 08:48:59 +02:00
score score: fix copy_from_user() and friends 2016-09-24 10:07:44 +02:00
sh sh: fix debug trap failure to process signals before return to user 2018-05-30 07:49:07 +02:00
sparc futex: Remove duplicated code and fix undefined behaviour 2018-05-26 08:48:50 +02:00
tile futex: Remove duplicated code and fix undefined behaviour 2018-05-26 08:48:50 +02:00
um um: Use POSIX ucontext_t instead of struct ucontext 2018-04-24 09:32:08 +02:00
unicore32 pwm: Changes for v4.4-rc1 2015-11-11 09:16:10 -08:00
x86 x86/topology: Update the 'cpu cores' field in /proc/cpuinfo correctly across CPU hotplug operations 2018-05-30 07:49:01 +02:00
xtensa futex: Remove duplicated code and fix undefined behaviour 2018-05-26 08:48:50 +02:00
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Kconfig