bisecting fixing commit since 180eca540ae06246d594bdd8d8213426a259cc8c
building syzkaller on 098b5d530648147c744a7c2eb8b78c1307f9d3ce
testing commit 180eca540ae06246d594bdd8d8213426a259cc8c
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 4c08d98d832ea1f077ce407efc27f27e3e0bfde98bafd824c4eda0a8c679933d
all runs: crashed: SYZFAIL: tun read failed
testing current HEAD 0840a7914caa14315a3191178a9f72c742477860
testing commit 0840a7914caa14315a3191178a9f72c742477860
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: e0b03e4cc055b27ea78256e336128933a5bf63f452725539dc085d34b2b218f9
run #0: crashed: SYZFAIL: tun read failed
run #1: crashed: SYZFAIL: wrong response packet
run #2: crashed: SYZFAIL: wrong response packet
run #3: crashed: SYZFAIL: tun read failed
run #4: crashed: SYZFAIL: tun read failed
run #5: crashed: SYZFAIL: tun read failed
run #6: crashed: SYZFAIL: wrong response packet
run #7: crashed: SYZFAIL: wrong response packet
run #8: crashed: SYZFAIL: wrong response packet
run #9: crashed: SYZFAIL: wrong response packet
revisions tested: 2, total time: 21m23.662454401s (build: 13m19.694342655s, test: 7m16.284949466s)
the crash still happens on HEAD
commit msg: Merge tag 'char-misc-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
crash: SYZFAIL: wrong response packet
2022/06/26 13:58:17 executor failed 11 times: executor 0: failed to write control pipe: write |1: broken pipe
SYZFAIL: wrong response packet
 (errno 16: Device or resource busy)
loop exited with status 67