linux/include
Eric W. Biederman 26d5badbcc signal: Implement force_fatal_sig
Add a simple helper force_fatal_sig that causes a signal to be
delivered to a process as if the signal handler was set to SIG_DFL.

Reimplement force_sigsegv based upon this new helper.  This fixes
force_sigsegv so that when it forces the default signal handler
to be used the code now forces the signal to be unblocked as well.

Reusing the tested logic in force_sig_info_to_task that was built for
force_sig_seccomp this makes the implementation trivial.

This is interesting both because it makes force_sigsegv simpler and
because there are a couple of buggy places in the kernel that call
do_exit(SIGILL) or do_exit(SIGSYS) because there is no straight
forward way today for those places to simply force the exit of a
process with the chosen signal.  Creating force_fatal_sig allows
those places to be implemented with normal signal exits.

Link: https://lkml.kernel.org/r/20211020174406.17889-13-ebiederm@xmission.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2021-10-29 14:31:33 -05:00
..
acpi Merge branches 'pm-cpufreq', 'pm-sleep' and 'pm-em' 2021-09-10 20:26:08 +02:00
asm-generic ARM development updates for 5.15: 2021-09-09 13:25:49 -07:00
clocksource
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-08-30 12:57:10 -07:00
drm
dt-bindings linux-watchdog 5.15-rc1 tag 2021-09-07 13:52:46 -07:00
keys
kunit
kvm
linux signal: Implement force_fatal_sig 2021-10-29 14:31:33 -05:00
math-emu
media
memory
misc
net flow: fix object-size-mismatch warning in flowi{4,6}_to_flowi_common() 2021-09-02 11:44:19 +01:00
pcmcia
ras
rdma Merge branch 'sg_nents' into rdma.git for-next 2021-08-30 09:49:59 -03:00
scsi
soc Merge branches 'clk-nvidia', 'clk-rockchip', 'clk-at91' and 'clk-vc5' into clk-next 2021-09-01 15:26:58 -07:00
sound ASoC: Updates for v5.15 2021-08-30 14:57:03 +02:00
target
trace Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
uapi virtio,vdpa,vhost: features, fixes 2021-09-11 14:48:42 -07:00
vdso
video
xen