bisecting fixing commit since ff33472c282e209da54cbc0c7c1c06ddfcc93d33
building syzkaller on 1656845f45f284c574eb4f8bfe85dd7916a47a3a
testing commit ff33472c282e209da54cbc0c7c1c06ddfcc93d33
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3147f02ae40596b41506a8e071c200f6fe9f908f568238bba4d5a6273ffb085c
run #0: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #1: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #2: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #3: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #4: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #5: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #6: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #7: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #8: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #9: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #10: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #11: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #12: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #13: crashed: KASAN: use-after-free Read in tls_push_record
run #14: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #15: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #16: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #17: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #18: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
run #19: crashed: KASAN: slab-out-of-bounds Read in tls_push_record
testing current HEAD f96eb53cbd76415edfba99c2cfa88567a885a428
testing commit f96eb53cbd76415edfba99c2cfa88567a885a428
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fae8300ac00feff62022841b03d8630876bca5bf85ba8cc98e8fdb4f4cd8d468
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m26.934312808s (build: 14m59.262040973s, test: 6m47.616405137s)
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