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| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-10-05 16:42:36 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-10-05 16:43:53 -0300 |
| commit | 9fce0c226536fc36c7fb0a80000ca38a995be43e (patch) | |
| tree | d1d03d4a831bb143ffd401cefa0f44f636ac0084 /kernel/seccomp.c | |
| parent | 3cc2691227203c00cac1d82d6b0772224d5c87b2 (diff) | |
| parent | c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 (diff) | |
| download | talos-op-linux-9fce0c226536fc36c7fb0a80000ca38a995be43e.tar.gz talos-op-linux-9fce0c226536fc36c7fb0a80000ca38a995be43e.zip | |
Merge tag 'v4.8' into patchwork
Linux 4.8
* tag 'v4.8': (1761 commits)
Linux 4.8
ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7
MIPS: CM: Fix mips_cm_max_vp_width for non-MT kernels on MT systems
include/linux/property.h: fix typo/compile error
ocfs2: fix deadlock on mmapped page in ocfs2_write_begin_nolock()
mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()
MAINTAINERS: Switch to kernel.org email address for Javi Merino
x86/entry/64: Fix context tracking state warning when load_gs_index fails
x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID
x86/vdso: Fix building on big endian host
x86/boot: Fix another __read_cr4() case on 486
sctp: fix the issue sctp_diag uses lock_sock in rcu_read_lock
sctp: change to check peer prsctp_capable when using prsctp polices
sctp: remove prsctp_param from sctp_chunk
sctp: move sent_count to the memory hole in sctp_chunk
tg3: Avoid NULL pointer dereference in tg3_io_error_detected()
x86/init: Fix cr4_init_shadow() on CR4-less machines
MIPS: Fix detection of unsupported highmem with cache aliases
MIPS: Malta: Fix IOCU disable switch read for MIPS64
MIPS: Fix BUILD_ROLLBACK_PROLOGUE for microMIPS
...
Diffstat (limited to 'kernel/seccomp.c')
| -rw-r--r-- | kernel/seccomp.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/kernel/seccomp.c b/kernel/seccomp.c index ef6c6c3f9d8a..0db7c8a2afe2 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -605,12 +605,16 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd, ptrace_event(PTRACE_EVENT_SECCOMP, data); /* * The delivery of a fatal signal during event - * notification may silently skip tracer notification. - * Terminating the task now avoids executing a system - * call that may not be intended. + * notification may silently skip tracer notification, + * which could leave us with a potentially unmodified + * syscall that the tracer would have liked to have + * changed. Since the process is about to die, we just + * force the syscall to be skipped and let the signal + * kill the process and correctly handle any tracer exit + * notifications. */ if (fatal_signal_pending(current)) - do_exit(SIGSYS); + goto skip; /* Check if the tracer forced the syscall to be skipped. */ this_syscall = syscall_get_nr(current, task_pt_regs(current)); if (this_syscall < 0) |
