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Apply FD_CLOEXEC to FDs of message queuing socketpair

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Gerhard Rieger 2023-06-12 12:23:37 +02:00
parent 8539e6e887
commit 80f4aa8bcd
2 changed files with 5 additions and 0 deletions
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3
CHANGES
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@ -34,6 +34,9 @@ Corrections:
Fixed an internal FD leak in the EXEC,SYSTEM addresses. Fixed an internal FD leak in the EXEC,SYSTEM addresses.
The FDs of the socketpair that queues messages from signal handlers
lacked FD_CLOEXEC and thus leaked into EXEC and SYSTEM child processes.
Features: Features:
VSOCK, VSOCK-L support options pf, socktype, prototype (currently VSOCK, VSOCK-L support options pf, socktype, prototype (currently
useless) useless)

2
error.c
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@ -119,6 +119,8 @@ static int diag_sock_pair(void) {
diag_sock_recv = -1; diag_sock_recv = -1;
return -1; return -1;
} }
fcntl(handlersocks[0], F_SETFD, FD_CLOEXEC);
fcntl(handlersocks[1], F_SETFD, FD_CLOEXEC);
diag_sock_send = handlersocks[1]; diag_sock_send = handlersocks[1];
diag_sock_recv = handlersocks[0]; diag_sock_recv = handlersocks[0];
#if !defined(MSG_DONTWAIT) #if !defined(MSG_DONTWAIT)