From: Kamil Rytarowski <n54@gmx.com>
To: gdb-patches@sourceware.org
Subject: [PATCH 08/10] Avoid double free in startup_inferior
Date: Wed, 2 Sep 2020 19:59:24 +0200 [thread overview]
Message-ID: <20200902175926.13182-9-n54@gmx.com> (raw)
In-Reply-To: <20200902175926.13182-1-n54@gmx.com>
Do not free the last execd pathname as it will be used in
prepare_resume_reply(), after attaching a client side.
gdb/ChangeLog:
* fork-inferior.c (startup_inferior): Avoid double free.
---
gdb/ChangeLog | 4 ++++
gdb/nat/fork-inferior.c | 5 ++++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1dcf5d0ca81..c57504a6ceb 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2020-08-13 Kamil Rytarowski <n54@gmx.com>
+
+ * fork-inferior.c (startup_inferior): Avoid double free.
+
2020-08-13 Kamil Rytarowski <n54@gmx.com>
* netbsd-nat.h (netbsd_nat::qxfer_siginfo): Add.
diff --git a/gdb/nat/fork-inferior.c b/gdb/nat/fork-inferior.c
index 1185ef8998b..94ab0b9cbc2 100644
--- a/gdb/nat/fork-inferior.c
+++ b/gdb/nat/fork-inferior.c
@@ -526,7 +526,10 @@ startup_inferior (process_stratum_target *proc_target, pid_t pid, int ntraps,
case TARGET_WAITKIND_EXECD:
/* Handle EXEC signals as if they were SIGTRAP signals. */
- xfree (ws.value.execd_pathname);
+ /* Do not free the last execd pathname as it will be used in
+ prepare_resume_reply(), after attaching a client side. */
+ if (pending_execs != 1)
+ xfree (ws.value.execd_pathname);
resume_signal = GDB_SIGNAL_TRAP;
switch_to_thread (proc_target, event_ptid);
break;
--
2.28.0
next prev parent reply other threads:[~2020-09-02 18:00 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 17:59 [PATCH 00/10] Add minimal NetBSD/amd64 gdbserver support Kamil Rytarowski
2020-09-02 17:59 ` [PATCH 01/10] Add handle_eintr to wrap EINTR handling in syscalls Kamil Rytarowski
2020-09-03 14:17 ` Tom Tromey
2020-09-03 21:10 ` Kamil Rytarowski
2020-09-02 17:59 ` [PATCH 02/10] Register a placeholder for NetBSD shared functions in gdb/nat Kamil Rytarowski
2020-09-02 17:59 ` [PATCH 03/10] Build nat/netbsd-nat.o for the NetBSD native target Kamil Rytarowski
2020-09-02 17:59 ` [PATCH 04/10] Add netbsd_nat::pid_to_exec_file Kamil Rytarowski
2020-09-02 17:59 ` [PATCH 05/10] Add gdb/nat common functions for listing threads Kamil Rytarowski
2020-09-02 17:59 ` [PATCH 06/10] Add netbsd_nat::enable_proc_events in gdb/nat Kamil Rytarowski
2020-09-02 17:59 ` [PATCH 07/10] Add a common utility function to read and write siginfo_t in inferior Kamil Rytarowski
2020-09-02 17:59 ` Kamil Rytarowski [this message]
2020-09-02 17:59 ` [PATCH 09/10] Switch local native code to gdb/nat shared functions Kamil Rytarowski
2020-09-02 17:59 ` [PATCH 10/10] Add minimal and functional NetBSD/amd64 gdbserver Kamil Rytarowski
2020-09-03 17:42 ` Aktemur, Tankut Baris
2020-09-04 0:13 ` Kamil Rytarowski
2020-09-04 7:58 ` Aktemur, Tankut Baris
2020-09-04 12:35 ` Kamil Rytarowski
2020-09-16 16:08 ` Tom Tromey
2020-09-18 17:41 ` Kamil Rytarowski
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