diff options
| author |  Przemyslaw Pawelczyk <przemoc@gmail.com> | 2016-11-28 14:41:37 +0100 |
|---|---|---|
| committer |  Nikolaus Rath <Nikolaus@rath.org> | 2016-11-28 21:35:05 -0800 |
| commit | a3fda25b7d2205094241c48e368a383c25920512 (patch) | |
| tree | e275dbef04a864245cbd48423f498c4f55a9666d /example | |
| parent | dfbfee07abc9329715a12ce251e0ceeda8d78f19 (diff) | |
examples/passthrough_ll.c: Fix segfault when showing help or version.
root lo_inode's next and prev were not set early enough, which led to
accessing addr 0x8 (or 0x4, depending on ptr size) when setting prev
variable in lo_free(lo.root.next), because lo.root.next was NULL.
Diffstat (limited to 'example')
| -rw-r--r-- | example/passthrough_ll.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/example/passthrough_ll.c b/example/passthrough_ll.c index 995026e..9c6144a 100644 --- a/example/passthrough_ll.c +++ b/example/passthrough_ll.c @@ -463,6 +463,8 @@ int main(int argc, char *argv[]) struct lo_data lo = { .debug = 0 }; int ret = -1; + lo.root.next = lo.root.prev = &lo.root; + if (fuse_parse_cmdline(&args, &opts) != 0) return 1; if (opts.show_help) { @@ -479,7 +481,6 @@ int main(int argc, char *argv[]) } lo.debug = opts.debug; - lo.root.next = lo.root.prev = &lo.root; lo.root.fd = open("/", O_PATH); lo.root.nlookup = 2; if (lo.root.fd == -1) |