bisecting fixing commit since 7f2c5eb458b8855655a19c44cd0043f7f83c595f
building syzkaller on 96dd36234d97bbf6b403f3a7f03cfc0296422879
testing commit 7f2c5eb458b8855655a19c44cd0043f7f83c595f
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: aa1578966451f1cfa2538e40bcf332baa7204149cefca1a59fc0ea3b5736627b
run #0: crashed: general protection fault in __smc_diag_dump
run #1: crashed: general protection fault 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: 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: general protection fault in __smc_diag_dump
run #14: crashed: KASAN: use-after-free Read in __smc_diag_dump
run #15: crashed: KASAN: use-after-free Read 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 f96eb53cbd76415edfba99c2cfa88567a885a428
testing commit f96eb53cbd76415edfba99c2cfa88567a885a428
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3eafad8e2d3cfb8f61e205849d94cac9eea7b22d0480458a0728c98303656fb6
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 28m26.057858286s (build: 21m16.021235896s, test: 6m41.302503851s)
the crash still happens on HEAD
commit msg: Linux 4.14.246
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1