bisecting fixing commit since 3242aa3a635c0958671ee1e4b0958dcc7c4e5c79
building syzkaller on 183afb6ca0e10390716c3552869388faedd7b69f
testing commit 3242aa3a635c0958671ee1e4b0958dcc7c4e5c79 with gcc (GCC) 8.4.1 20210217
kernel signature: 73b07e15c8fb8d47a6028c61f95f3314024ff3e8a92750725a5d841a9c7d35e0
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: netlink_send_ext: netlink read failed
run #6: crashed: SYZFAIL: netlink_send_ext: netlink read failed
run #7: crashed: SYZFAIL: netlink_send_ext: short netlink write
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: short netlink write
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: short netlink write
run #15: crashed: SYZFAIL: netlink_send_ext: short netlink write
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: short netlink write
testing current HEAD 7d7d1c0ab3eb7c8d8f63a126535018007823b207
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 with gcc (GCC) 8.4.1 20210217
kernel signature: 17707791dc7e4b779a7ea7421075499ea866ec24bddc4d55f7da2d252cccba91
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: short netlink write
run #5: crashed: SYZFAIL: netlink_send_ext: netlink read failed
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
revisions tested: 2, total time: 27m19.980509002s (build: 15m44.653528914s, test: 11m4.571261003s)
the crash still happens on HEAD
commit msg: Linux 4.14.232
crash: SYZFAIL: netlink_send_ext: netlink read failed
2021/05/11 06:24:30 executed programs: 1044
2021/05/11 06:24:35 executed programs: 1076
2021/05/11 06:24:40 executed programs: 1107
2021/05/11 06:24:45 executed programs: 1140
2021/05/11 06:24:49 result: hanged=false err=executor 1: exit status 67
SYZFAIL: netlink_send_ext: netlink read failed
 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67


SYZFAIL: netlink_send_ext: netlink read failed
 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67
2021/05/11 06:24:49 result: hanged=false err=executor 3: exit status 67
SYZFAIL: netlink_send_ext: netlink read failed
 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67


SYZFAIL: netlink_send_ext: netlink read failed
 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67
2021/05/11 06:24:49 result: hanged=false err=executor 4: exit status 67
SYZFAIL: netlink_send_ext: netlink read failed
 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67


SYZFAIL: netlink_send_ext: netlink read failed
 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67
2021/05/11 06:24:50 executed programs: 1169