bisecting fixing commit since 7f2c5eb458b8855655a19c44cd0043f7f83c595f
building syzkaller on 96dd36234d97bbf6b403f3a7f03cfc0296422879
testing commit 7f2c5eb458b8855655a19c44cd0043f7f83c595f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 90178bd4e86da3a1e4355887dec721d8295413ddef8da83547208c8477a17ead
run #0: crashed: general protection fault in __smc_diag_dump
run #1: crashed: KASAN: use-after-free Read in __smc_diag_dump
run #2: crashed: general protection fault in __smc_diag_dump
run #3: crashed: general protection fault in __smc_diag_dump
run #4: crashed: general protection fault in __smc_diag_dump
run #5: crashed: general protection fault in __smc_diag_dump
run #6: crashed: general protection fault in __smc_diag_dump
run #7: crashed: KASAN: use-after-free Read in __smc_diag_dump
run #8: crashed: general protection fault in __smc_diag_dump
run #9: crashed: general protection fault in __smc_diag_dump
run #10: crashed: general protection fault in __smc_diag_dump
run #11: crashed: general protection fault in __smc_diag_dump
run #12: crashed: KASAN: use-after-free Read in __smc_diag_dump
run #13: crashed: general protection fault in __smc_diag_dump
run #14: crashed: general protection fault in __smc_diag_dump
run #15: crashed: general protection fault in __smc_diag_dump
run #16: crashed: general protection fault in __smc_diag_dump
run #17: crashed: general protection fault in __smc_diag_dump
run #18: crashed: general protection fault in __smc_diag_dump
run #19: crashed: general protection fault in __smc_diag_dump
testing current HEAD ed99bf0e81b558df39f7db2fa96d0228be4198c6
testing commit ed99bf0e81b558df39f7db2fa96d0228be4198c6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: d82ee7d30eb12262f5199255a3289c8aac01cd217a891d4a9b45c53aa136d0d7
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m46.693238896s (build: 24m42.048564476s, test: 6m17.370968804s)
the crash still happens on HEAD
commit msg: Linux 4.14.250
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1