bisecting fixing commit since 2d19be4653f5e74ed95560b69f94eb6791d49af3
building syzkaller on 06ed56cd22e24a55c40d152880b66b108834c8f2
testing commit 2d19be4653f5e74ed95560b69f94eb6791d49af3 with gcc (GCC) 8.4.1 20210217
kernel signature: 745845a288a62a3e43638bb637c48261531479492f5a6b08e181a317bba10d4f
all runs: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
testing current HEAD 97a8651cadce7c2b7c4d8f108b392eff31fe2c08
testing commit 97a8651cadce7c2b7c4d8f108b392eff31fe2c08 with gcc (GCC) 8.4.1 20210217
kernel signature: 905a5898dcbbdcbd454e9b6638bdba57c66c13def2194c3eb95fcbf791f3cf1e
run #0: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
run #1: crashed: SYZFAIL: wrong response packet
run #2: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
run #3: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
run #4: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
run #5: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
run #6: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
run #7: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
run #8: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
run #9: crashed: SYZFAIL: netlink_send_ext: bad netlink ack type
revisions tested: 2, total time: 28m37.011030364s (build: 14m56.709431841s, test: 13m13.887038183s)
the crash still happens on HEAD
commit msg: Linux 4.19.189
crash: SYZFAIL: netlink_send_ext: bad netlink ack type
2021/04/30 02:24:56 result: hanged=false err=executor 4: exit status 67
SYZFAIL: netlink_send_ext: bad netlink ack type
type=35 (errno 22: Invalid argument)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67


SYZFAIL: netlink_send_ext: bad netlink ack type
type=35 (errno 22: Invalid argument)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67
2021/04/30 02:25:05 executed programs: 4827