bisecting fixing commit since 7f2c5eb458b8855655a19c44cd0043f7f83c595f
building syzkaller on 96dd36234d97bbf6b403f3a7f03cfc0296422879
testing commit 7f2c5eb458b8855655a19c44cd0043f7f83c595f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 4ff04e67441346a90e93cde2c82240eaa8e1d525540e72102b4a02ee91916f82
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: KASAN: use-after-free Read 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: KASAN: use-after-free Read in __smc_diag_dump
run #7: crashed: KASAN: use-after-free Read in __smc_diag_dump
run #8: crashed: KASAN: use-after-free Read in __smc_diag_dump
run #9: crashed: KASAN: use-after-free Read 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: KASAN: use-after-free Read 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: KASAN: use-after-free Read in __smc_diag_dump
run #19: crashed: general protection fault in __smc_diag_dump
testing current HEAD c01d4d1b885d96a7c8c27d629abeb918ca897dbe
testing commit c01d4d1b885d96a7c8c27d629abeb918ca897dbe
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 29e6937cc0971627d7a4b5ff12f6ac3a3fc94d291af6ded0aee5ad25b85e7a26
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m28.368364675s (build: 21m11.023546778s, test: 6m22.387872532s)
the crash still happens on HEAD
commit msg: Linux 4.14.257
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1