commit 070eda5a21f580ee00ed64527ade4343b10e0fb6 Author: Nick Mathewson <nickm@torproject.org> Date: Tue Mar 20 08:22:28 2018 -0400 Add the poll() syscall as permitted by the sandbox Apparently, sometimes getpwnam will call this. Fixes bug 25513. --- changes/feature25313 | 4 ++++ src/common/sandbox.c | 3 ++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/changes/feature25313 b/changes/feature25313 new file mode 100644 index 000000000..90f421169 --- /dev/null +++ b/changes/feature25313 @@ -0,0 +1,4 @@ + o Minor features (sandbox): + - Explicitly permit the poll() system call when the Linux seccomp2-based + sandbox is enabled: apparently, some versions of libc use poll() when + calling getpwnam(). Closes ticket 25313. diff --git a/src/common/sandbox.c b/src/common/sandbox.c index b90ae0257..c1b7bfe5e 100644 --- a/src/common/sandbox.c +++ b/src/common/sandbox.c @@ -247,7 +247,8 @@ static int filter_nopar_gen[] = { SCMP_SYS(recvmsg), SCMP_SYS(recvfrom), SCMP_SYS(sendto), - SCMP_SYS(unlink) + SCMP_SYS(unlink), + SCMP_SYS(poll) }; /* These macros help avoid the error where the number of filters we add on a