bisecting fixing commit since ddef1e8e3f6eb26034833b7255e3fa584d54a230
building syzkaller on b35fad31e9c2d4a970d051deff80ec7cc4c3e459
testing commit ddef1e8e3f6eb26034833b7255e3fa584d54a230 with gcc (GCC) 8.4.1 20210217
kernel signature: 2b4f683efe4d40cf81b4c0c9c2cad8b0ed5fc4f6c8d40ef2c0ecf2d6cb137c38
run #0: crashed: KASAN: use-after-free Read in tls_write_space
run #1: crashed: KASAN: use-after-free Read in tls_write_space
run #2: crashed: KASAN: use-after-free Read in tls_write_space
run #3: crashed: KASAN: use-after-free Read in tls_write_space
run #4: crashed: KASAN: use-after-free Read in tls_write_space
run #5: crashed: KASAN: use-after-free Read in tls_write_space
run #6: crashed: KASAN: use-after-free Read in tls_write_space
run #7: crashed: KASAN: use-after-free Read in tls_write_space
run #8: OK
run #9: OK
run #10: OK
run #11: OK
run #12: OK
run #13: crashed: KASAN: use-after-free Read in tls_write_space
run #14: OK
run #15: crashed: KASAN: use-after-free Read in tls_write_space
run #16: OK
run #17: OK
run #18: OK
run #19: OK
testing current HEAD 4e68c9b0763ff55eaa69d6e519f07515f1c9037b
testing commit 4e68c9b0763ff55eaa69d6e519f07515f1c9037b with gcc (GCC) 8.4.1 20210217
kernel signature: 8c4892f5a22c51e30cd6d831770c76bbebcd9e082e0d0558a2638b65072b38fc
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 37m3.416429435s (build: 21m34.633228222s, test: 14m29.476787965s)
the crash still happens on HEAD
commit msg: Linux 4.14.239
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1