bisecting fixing commit since 9a2dc0e6c531d595bcdf2c66d0be131679bd02df building syzkaller on 1ba81399e2d03b53a7e631c4ab05f25af1fb1911 testing commit 9a2dc0e6c531d595bcdf2c66d0be131679bd02df compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: ef2c697c3bad9033ae61d6011a1f341dcc6a3b622d453385dcec444d2f564f40 all runs: crashed: BUG: sleeping function called from invalid context in lock_sock_nested testing current HEAD 2950c9c5e0df6bd34af45a5168bbee345e95eae2 testing commit 2950c9c5e0df6bd34af45a5168bbee345e95eae2 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 87adefebe109083619ea681e44b73112cd3801e64d0740054280e97ddcea1915 run #0: OK run #1: crashed: SYZFAIL: handshake read failed run #2: crashed: SYZFAIL: handshake read failed run #3: crashed: SYZFAIL: handshake read failed run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK reproducer seems to be flaky Reproducer flagged being flaky revisions tested: 2, total time: 41m50.632871179s (build: 24m1.432719343s, test: 17m10.063588105s) the crash still happens on HEAD commit msg: Linux 4.19.207 crash: SYZFAIL: handshake read failed 2021/09/23 18:29:51 executor failed 11 times: executor 3: exit status 67 SYZFAIL: handshake read failed read=-1 (errno 9: Bad file descriptor) SYZFAIL: child failed (errno 0: Success) loop exited with status 67 SYZFAIL: handshake read failed read=-1 (errno 9: Bad file descriptor) SYZFAIL: child failed (errno 0: Success) loop exited with status 67