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| author | Weng Xuetian <wengxt@gmail.com> | 2016-06-29 13:22:12 -0700 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2016-06-29 22:22:12 +0200 |
| commit | f0d5c5be5923f3342d0de1241e30650b1d57d551 (patch) | |
| tree | 1f81369ad57a052204cbb478e4a8a6d14e85111f | |
| parent | d6568222d74bdfbeb75e37e96b64248ec0145dea (diff) | |
sd-bus: Fix a read after free error in bus-match. (#3624) (#3625)
The loop on bus_match_run should break and return immediately if
bus->match_callbacks_modified is true. Otherwise the loop may access
free'd data.
| -rw-r--r-- | src/libsystemd/sd-bus/bus-match.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libsystemd/sd-bus/bus-match.c b/src/libsystemd/sd-bus/bus-match.c index 397baf6f33..db01f21135 100644 --- a/src/libsystemd/sd-bus/bus-match.c +++ b/src/libsystemd/sd-bus/bus-match.c @@ -429,6 +429,9 @@ int bus_match_run( r = bus_match_run(bus, c, m); if (r != 0) return r; + + if (bus && bus->match_callbacks_modified) + return 0; } } |