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66 lines
2.8 KiB
66 lines
2.8 KiB
From 9d00fbb87c43e129e1ab29298afc86b7e8eed25c Mon Sep 17 00:00:00 2001 |
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From: Evgeny Vereshchagin <evvers@ya.ru> |
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Date: Mon, 18 Jan 2016 06:10:33 +0000 |
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Subject: [PATCH] core: fix memory leak on failed preset-all |
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How to reproduce |
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$ systemctl set-default multi-user # https://github.com/systemd/systemd/issues/2298 |
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$ systemctl preset-all |
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Failed to execute operation: Too many levels of symbolic links |
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$ systemctl poweroff |
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Fixes: |
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==1== |
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==1== HEAP SUMMARY: |
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==1== in use at exit: 65,645 bytes in 7 blocks |
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==1== total heap usage: 40,539 allocs, 40,532 frees, 30,147,547 bytes allocated |
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==1== |
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==1== 109 (24 direct, 85 indirect) bytes in 1 blocks are definitely lost in loss record 2 of 7 |
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==1== at 0x4C2BBCF: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) |
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==1== by 0x4C2DE2F: realloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) |
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==1== by 0x23DA71: unit_file_changes_add (install.c:233) |
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==1== by 0x23E45D: remove_marked_symlinks_fd (install.c:453) |
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==1== by 0x23E267: remove_marked_symlinks_fd (install.c:405) |
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==1== by 0x23E641: remove_marked_symlinks (install.c:494) |
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==1== by 0x243A91: execute_preset (install.c:2190) |
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==1== by 0x244343: unit_file_preset_all (install.c:2351) |
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==1== by 0x18AAA2: method_preset_all_unit_files (dbus-manager.c:1846) |
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==1== by 0x1D8157: method_callbacks_run (bus-objects.c:420) |
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==1== by 0x1DA9E9: object_find_and_run (bus-objects.c:1257) |
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==1== by 0x1DB02B: bus_process_object (bus-objects.c:1373) |
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==1== |
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==1== LEAK SUMMARY: |
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==1== definitely lost: 24 bytes in 1 blocks |
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==1== indirectly lost: 85 bytes in 1 blocks |
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==1== possibly lost: 0 bytes in 0 blocks |
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==1== still reachable: 65,536 bytes in 5 blocks |
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==1== suppressed: 0 bytes in 0 blocks |
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==1== Reachable blocks (those to which a pointer was found) are not shown. |
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==1== To see them, rerun with: --leak-check=full --show-leak-kinds=all |
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==1== |
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==1== For counts of detected and suppressed errors, rerun with: -v |
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==1== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0) |
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Cherry-picked from: c292c3af38c8c23e183f3e63ef492926cea64bab |
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Related: #1331667 |
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--- |
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src/core/dbus-manager.c | 4 +++- |
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1 file changed, 3 insertions(+), 1 deletion(-) |
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diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c |
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index 1a5525e50f..9eef290ca7 100644 |
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--- a/src/core/dbus-manager.c |
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+++ b/src/core/dbus-manager.c |
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@@ -1875,8 +1875,10 @@ static int method_preset_all_unit_files(sd_bus *bus, sd_bus_message *message, vo |
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scope = m->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER; |
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r = unit_file_preset_all(scope, runtime, NULL, mm, force, &changes, &n_changes); |
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- if (r < 0) |
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+ if (r < 0) { |
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+ unit_file_changes_free(changes, n_changes); |
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return r; |
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+ } |
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return reply_unit_file_changes_and_free(m, bus, message, -1, changes, n_changes); |
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}
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