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dumpstate: don't follow symlinks when creating /data/anr/traces.txt 

Make Android more robust against symlink attacks when /data/anr
is world-writable.

Bug: 5614000
Change-Id: I9a7e4c4ec9aa4300ac30a968db0dcd276f364ab6
This commit is contained in:
Nick Kralevich 2012-04-06 09:53:45 -07:00
parent c7f1fe2680
commit d51820e8de
1 changed files with 1 additions and 1 deletions
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2
cmds/dumpstate/utils.c
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@ -383,7 +383,7 @@ const char *dump_vm_traces() {
}
/* create a new, empty traces.txt file to receive stack dumps */
int fd = open(traces_path, O_CREAT | O_WRONLY | O_TRUNC, 0666); /* -rw-rw-rw- */
int fd = open(traces_path, O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW, 0666); /* -rw-rw-rw- */
if (fd < 0) {
fprintf(stderr, "%s: %s\n", traces_path, strerror(errno));
return NULL;