From 314d88f611e07e5619ebc353b0d7d26272191a04 Mon Sep 17 00:00:00 2001 From: Michael Kerrisk Date: Tue, 24 Apr 2018 18:25:44 +0200 Subject: [PATCH] vdso.7: VDSO symbols (system calls) are not visible to seccomp(2) filters Signed-off-by: Michael Kerrisk --- man7/vdso.7 | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/man7/vdso.7 b/man7/vdso.7 index 9af02a8aa..500334581 100644 --- a/man7/vdso.7 +++ b/man7/vdso.7 @@ -164,12 +164,15 @@ x86/x32 linux-vdso.so.1 .in .ft P \} -.SS strace(1) and the vDSO +.SS strace(1), seccomp(2), and the vDSO When tracing systems calls with .BR strace (1), symbols (system calls) that are exported by the vDSO will .I not appear in the trace output. +Those system calls will likewise not be visible to +.BR seccomp (2) +filters. .SH ARCHITECTURE-SPECIFIC NOTES The subsections below provide architecture-specific notes on the vDSO.