/* * include/asm-generic/seccomp.h * * Copyright (C) 2014 Linaro Limited * Author: AKASHI Takahiro * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef _ASM_GENERIC_SECCOMP_H #define _ASM_GENERIC_SECCOMP_H #include #if defined(CONFIG_COMPAT) && !defined(__NR_seccomp_read_32) #define __NR_seccomp_read_32 __NR_read #define __NR_seccomp_write_32 __NR_write #define __NR_seccomp_exit_32 __NR_exit #ifndef __NR_seccomp_sigreturn_32 #define __NR_seccomp_sigreturn_32 __NR_rt_sigreturn #endif #endif /* CONFIG_COMPAT && ! already defined */ #define __NR_seccomp_read __NR_read #define __NR_seccomp_write __NR_write #define __NR_seccomp_exit __NR_exit #ifndef __NR_seccomp_sigreturn #define __NR_seccomp_sigreturn __NR_rt_sigreturn #endif #ifdef CONFIG_COMPAT #ifndef get_compat_mode1_syscalls static inline const int *get_compat_mode1_syscalls(void) { static const int mode1_syscalls_32[] = { __NR_seccomp_read_32, __NR_seccomp_write_32, __NR_seccomp_exit_32, __NR_seccomp_sigreturn_32, 0, /* null terminated */ }; return mode1_syscalls_32; } #endif #endif /* CONFIG_COMPAT */ #endif /* _ASM_GENERIC_SECCOMP_H */ elect> net-next plumbingsTobias Klauser
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authorDavid S. Miller <davem@davemloft.net>2017-01-30 14:28:22 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-30 14:28:22 -0800
commit54791b276b4000b307339f269d3bf7db877d536f (patch)
tree1c2616bd373ce5ea28aac2a53e32f5b5834901ce /include/dt-bindings/clock/imx6qdl-clock.h
parent5d0e7705774dd412a465896d08d59a81a345c1e4 (diff)
parent047487241ff59374fded8c477f21453681f5995c (diff)
Merge branch 'sparc64-non-resumable-user-error-recovery'
Liam R. Howlett says: ==================== sparc64: Recover from userspace non-resumable PIO & MEM errors A non-resumable error from userspace is able to cause a kernel panic or trap loop due to the setup and handling of the queued traps once in the kernel. This patch series addresses both of these issues. The queues are fixed by simply zeroing the memory before use. PIO errors from userspace will result in a SIGBUS being sent to the user process. The MEM errors form userspace will result in a SIGKILL and also cause the offending pages to be claimed so they are no longer used in future tasks. SIGKILL is used to ensure that the process does not try to coredump and result in an attempt to read the memory again from within kernel space. Although there is a HV call to scrub the memory (mem_scrub), there is no easy way to guarantee that the real memory address(es) are not used by other tasks. Clearing the error with mem_scrub would zero the memory and cause the other processes to proceed with bad data. The handling of other non-resumable errors remain unchanged and will cause a panic. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/dt-bindings/clock/imx6qdl-clock.h')