systemd/SOURCES/9000-resolved-pin-stream-while-calling-callbacks-for-it.patch
2022-08-29 15:58:43 +00:00

43 lines
1.4 KiB
Diff

From a4f08c798cabd5c43f2578a9e2b048fa1ad4a52c Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 4 Dec 2018 22:13:39 +0100
Subject: [PATCH] resolved: pin stream while calling callbacks for it
These callbacks might unref the stream, but we still have to access it,
let's hence ref it explicitly.
Maybe fixes: #10725
(cherry picked from commit d973d94dec349fb676fdd844f6fe2ada3538f27c)
Resolves: #2110548
---
src/resolve/resolved-dns-stream.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/resolve/resolved-dns-stream.c b/src/resolve/resolved-dns-stream.c
index 066daef96e..2d0162483a 100644
--- a/src/resolve/resolved-dns-stream.c
+++ b/src/resolve/resolved-dns-stream.c
@@ -42,6 +42,8 @@ static int dns_stream_update_io(DnsStream *s) {
}
static int dns_stream_complete(DnsStream *s, int error) {
+ _cleanup_(dns_stream_unrefp) _unused_ DnsStream *ref = dns_stream_ref(s); /* Protect stream while we process it */
+
assert(s);
#if ENABLE_DNS_OVER_TLS
@@ -315,7 +317,7 @@ static int on_stream_timeout(sd_event_source *es, usec_t usec, void *userdata) {
}
static int on_stream_io(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
- DnsStream *s = userdata;
+ _cleanup_(dns_stream_unrefp) DnsStream *s = dns_stream_ref(userdata); /* Protect stream while we process it */
int r;
assert(s);
--
2.37.1