bisecting fixing commit since 3242aa3a635c0958671ee1e4b0958dcc7c4e5c79
building syzkaller on e5b64d68915ed04952cef2f5dcb3f3ccbb7cfa57
testing commit 3242aa3a635c0958671ee1e4b0958dcc7c4e5c79 with gcc (GCC) 8.4.1 20210217
kernel signature: 8cda90d7ed84d0ab216e14d0a8e74737bf96caff9001bb569e721a47a778d366
run #0: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #1: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #2: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #3: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #4: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #5: crashed: SYZFAIL: wrong response packet
run #6: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #7: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #8: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #9: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #10: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #11: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #12: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #13: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #14: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #15: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #16: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #17: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #18: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #19: crashed: SYZFAIL: netlink_send_ext: netlink read failed
testing current HEAD bd634aa6416382439890b78f7be0023020a86207
testing commit bd634aa6416382439890b78f7be0023020a86207 with gcc (GCC) 8.4.1 20210217
kernel signature: 5ed8811b2ca7f924414cf7e720de8657aa503fe2f60746ca116e4e8fc2bdd945
all runs: crashed: SYZFAIL: netlink_send_ext: netlink read failed
revisions tested: 2, total time: 21m7.165907212s (build: 14m0.491405727s, test: 6m39.146500755s)
the crash still happens on HEAD
commit msg: Linux 4.14.228
crash: SYZFAIL: netlink_send_ext: netlink read failed
2021/04/02 03:51:57 executed programs: 625
2021/04/02 03:52:02 executed programs: 1340
2021/04/02 03:52:07 executed programs: 2040
2021/04/02 03:52:11 result: hanged=false err=executor 2: exit status 67
SYZFAIL: netlink_send_ext: netlink read failed
SYZFAIL: netlink_send_ext: short netlink write
wrote=-1, want=32 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67


SYZFAIL: netlink_send_ext: netlink read failed
SYZFAIL: netlink_send_ext: short netlink write
wrote=-1, want=32 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67
2021/04/02 03:52:15 executed programs: 2553
2021/04/02 03:52:20 executed programs: 3246