bisecting cause commit starting from 92816e2629808726af015c7f5b14adc8e4f8b147
building syzkaller on 49ca1f59e37fcf63dc38a6bd2b60fcc47a0a708e
testing commit 92816e2629808726af015c7f5b14adc8e4f8b147
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: ac6e046372314c942674a946f8b019b0c8ce2a94a872a6a68e15fcdf27da85c5
all runs: crashed: KASAN: use-after-free Read in remove_wait_queue
testing release v5.15
testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 23b867ff5df3d6cb6b498368a18ae79abf8004bbd96dea98ad38033811273ce5
all runs: crashed: KASAN: use-after-free Read in remove_wait_queue
testing release v5.14
testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: b2164682a4188d600e8629b33fdd665dc2a6573b9b8685e4bb26430826cfdcc6
all runs: crashed: KASAN: use-after-free Read in remove_wait_queue
testing release v5.13
testing commit 62fb9874f5da54fdb243003b386128037319b219
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: d6fe745592b80ae8986d100cc520c0fff9c440ffd363b3dd0a8a457d65577d25
all runs: crashed: KASAN: use-after-free Read in remove_wait_queue
testing release v5.12
testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 864dad0df29c43a862d859123979720ac13bae730acb39cb4c33aff115ff50f2
all runs: crashed: KASAN: use-after-free Read in remove_wait_queue
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: ff881afc3b439a2c202b9f684ce4fd4adcabd2fe7d0b6317383e3a44098713e9
all runs: crashed: KASAN: use-after-free Read in remove_wait_queue
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: ffa3bc1846989c522c16c86fc21eb8d70808f95a91697a117f234232fb4187eb
run #0: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #1: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #2: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #3: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #4: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #5: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #6: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #7: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #8: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #9: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 74c981e7841a396f3d3c3161e2d15b9bb981a31f7af64ba52b96d7764743d69d
run #0: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #1: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #2: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #3: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #4: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #5: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #6: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #7: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #8: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #9: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c
compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 4baafe3a0dbb1ec34babd17edaf2cb1c645d883bcd2e806e59b4babcf519014b
run #0: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #1: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #2: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #3: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #4: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #5: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #6: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #7: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #8: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #9: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: f741855453a16eb6c13470db55eb6c74c9b453ef9d71b713936f24ee20218d27
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b3b7660406d494b051a082d314f50a67b9bb9592830f5dabb5ebc84351374f07
run #0: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #1: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #2: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #3: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #4: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #5: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #6: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #7: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #8: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #9: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b9272be4fdc95f16ce2b28bae42860b26298a38f5e6c26ec953301b4928a86e1
run #0: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #1: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #2: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #3: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #4: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #5: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #6: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #7: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #8: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #9: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.4
testing commit 219d54332a09e8d8741c1e1982f5eae56099de85
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9eebb85d8afb8cfb53b0e326c7da0b3a23f2d333772e42c7613f1d5a13a630ed
run #0: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #1: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #2: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #3: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #4: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #5: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #6: basic kernel testing failed: KASAN: use-after-free Read in __task_pid_nr_ns
run #7: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #8: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
run #9: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.3
testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 24dbbeba5178bdb6deb409e96c7d22a764de2c5b202b3e8dbdbb2e6b753d29ab
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.8:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.8' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.22:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.22' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.24:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.24' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.204:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.204' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.130:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.130' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #5: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.99:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.99' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #6: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.29:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.29' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #7: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.32:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.32' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #8: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.33:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.33' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #9: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.44:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.44' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

testing release v5.2
testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 46187d7e24ef821929c2870c85196922bdc001c62b3afcd7ba8c625ba8d4739b
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.63:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.63' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.138:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.138' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.160:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.160' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.218:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.218' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.210:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.210' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #5: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.18:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.18' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #6: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.211:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.211' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #7: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.220:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.220' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #8: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.212:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.212' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #9: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.216:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.216' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

testing release v5.1
testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: aa36124fe5ef1497e0548708e24eb4e4b5dcd7e2225fea27f42fe3f1d8a44b4f
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.186:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.186' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.202:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.38:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.38' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.229:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.229' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.92:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.92' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #5: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.236:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.236' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #6: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.250:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.250' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #7: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.9:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.9' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #8: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.53:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.53' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #9: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.55:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.55' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

testing release v5.0
testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 506ab0be93a3b5b2459ef46aa16b70a56242935c31c37f2cf7e016bb693f9b7a
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.29:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.29' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.34:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.34' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.52:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.52' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.63:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.54:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.54' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #5: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.59:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.59' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #6: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.53:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #7: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.55:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.55' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #8: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.48:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.48' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #9: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.58:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.58' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 605d844114d8c4c5c4b0e4a9cf1cdcd4044ff749ca1a6357104012d3e50e4d9a
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.35:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.35' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.203:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.203' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.207:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.207' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.222:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.222' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.225:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.225' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #5: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.217:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.217' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #6: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.218:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.218' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #7: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.219:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.219' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #8: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.226:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.15.226' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #9: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.30:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.30' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 24a2c80de83a743c6878ca1d78a74556cdcf758a77124e5cea40c87654b77261
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.202:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.202' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.149:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.149' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #2: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.85:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.85' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #3: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.33:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.33' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #4: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.102:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.102' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #5: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.1:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #6: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.28:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.28' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #7: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.238:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.0.238' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #8: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.29:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.10.29' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

run #9: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.1.10:./syz-fuzzer"]: exit status 1
Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts.
scp: ./syz-fuzzer: Read-only file system

testing release v4.18
testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b44da8b35818d1e5163168cd7ebad7bb4287a61409828f1e31f2d01ab313f181
all runs: boot failed: kernel panic: Attempted to kill init!
testing release v4.17
testing commit 29dcea88779c856c7dc92040a0c01233263101d4
compiler: gcc (GCC) 8.4.1 20210217
failed to run ["make" "-j" "64" "ARCH=x86_64" "CC=/syzkaller/shared/bisect_bin/gcc-8.1.0/bin/gcc" "bzImage"]: exit status 2
testing release v4.16
testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda
compiler: gcc (GCC) 8.4.1 20210217
orc_dump.c:106:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
orc_dump.c:111:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
elf.c:135:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:140:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
testing release v4.15
testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff
compiler: gcc (GCC) 8.4.1 20210217
orc_dump.c:106:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
orc_dump.c:111:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
pager.c:36:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
elf.c:135:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:140:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
testing release v4.14
testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4
compiler: gcc (GCC) 8.4.1 20210217
orc_dump.c:105:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
orc_dump.c:110:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
elf.c:134:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:139:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
pager.c:36:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
testing release v4.13
testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261
compiler: gcc (GCC) 8.4.1 20210217
pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
elf.c:144:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:149:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
testing release v4.12
testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c
compiler: gcc (GCC) 8.4.1 20210217
pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
elf.c:141:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:146:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
testing release v4.11
testing commit a351e9b9fc24e982ec2f0e76379a49826036da12
compiler: gcc (GCC) 7.5.0
elf.c:141:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:146:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
testing release v4.10
testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd
compiler: gcc (GCC) 5.5.0
tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes]
elf.c:129:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:134:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
testing release v4.9
testing commit 69973b830859bc6529a7a0468ba0d80ee5117826
compiler: gcc (GCC) 5.5.0
tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes]
elf.c:129:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:134:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
pager.c:35:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
testing release v4.8
testing commit c8d2bc9bc39ebea8437fd974fdbc21847bb897a3
compiler: gcc (GCC) 5.5.0
tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes]
elf.c:129:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:134:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
pager.c:33:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
testing release v4.7
testing commit 523d939ef98fd712632d93a5a2b588e477a7565e
compiler: gcc (GCC) 5.5.0
tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes]
elf.c:122:2: error: 'elf_getshnum' is deprecated [-Werror=deprecated-declarations]
elf.c:127:2: error: 'elf_getshstrndx' is deprecated [-Werror=deprecated-declarations]
pager.c:33:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
testing release v4.6
testing commit 2dcd0af568b0cf583645c8a317dd12e344b1c72a
compiler: gcc (GCC) 5.5.0
tools/include/linux/log2.h:19:1: error: ignoring attribute 'noreturn' because it conflicts with attribute 'const' [-Werror=attributes]
pager.c:33:12: error: passing argument 2 to 'restrict'-qualified parameter aliases with argument 4 [-Werror=restrict]
revisions tested: 20, total time: 3h49m25.688615438s (build: 2h45m17.305312788s, test: 58m56.600147117s)
the crash already happened on the oldest tested release
commit msg: Linux 5.11
crash: KASAN: use-after-free Read in remove_wait_queue
==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x3f13/0x57d0 kernel/locking/lockdep.c:4702
Read of size 8 at addr ffff8880168f3e40 by task syz-executor696/5897

CPU: 0 PID: 5897 Comm: syz-executor696 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x9a/0xcc lib/dump_stack.c:120
 print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:230
 __kasan_report mm/kasan/report.c:396 [inline]
 kasan_report.cold+0x79/0xd5 mm/kasan/report.c:413
 __lock_acquire+0x3f13/0x57d0 kernel/locking/lockdep.c:4702
 lock_acquire kernel/locking/lockdep.c:5442 [inline]
 lock_acquire+0x1a8/0x720 kernel/locking/lockdep.c:5407
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
 remove_wait_queue+0x1d/0x180 kernel/sched/wait.c:55
 ep_remove_wait_queue+0x71/0x110 fs/eventpoll.c:545
 ep_unregister_pollwait fs/eventpoll.c:561 [inline]
 ep_remove+0xe0/0x860 fs/eventpoll.c:684
 eventpoll_release_file+0xc8/0x110 fs/eventpoll.c:917
 eventpoll_release include/linux/eventpoll.h:53 [inline]
 __fput+0x5ac/0x870 fs/file_table.c:271
 task_work_run+0xc0/0x160 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fc53c978ee3
Code: c7 c2 c0 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8
RSP: 002b:00007ffcf2f146c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fc53c978ee3
RDX: 000000000000002f RSI: 0000000020001340 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000014 R09: 00007ffcf2f146f0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcf2f146ec
R13: 00007ffcf2f14700 R14: 00007ffcf2f14740 R15: 0000000000000000

Allocated by task 5897:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:401 [inline]
 ____kasan_kmalloc.constprop.0+0x82/0xa0 mm/kasan/common.c:429
 kmalloc include/linux/slab.h:552 [inline]
 psi_trigger_create.part.0+0x15e/0x830 kernel/sched/psi.c:1101
 cgroup_pressure_write+0x117/0x4f0 kernel/cgroup/cgroup.c:3577
 cgroup_file_write+0x268/0x690 kernel/cgroup/cgroup.c:3698
 kernfs_fop_write_iter+0x2c5/0x460 fs/kernfs/file.c:296
 call_write_iter include/linux/fs.h:1901 [inline]
 new_sync_write+0x35d/0x5f0 fs/read_write.c:518
 vfs_write+0x5be/0x870 fs/read_write.c:605
 ksys_write+0xf4/0x1d0 fs/read_write.c:658
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Freed by task 5897:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_set_track+0x1c/0x30 mm/kasan/common.c:46
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:356
 ____kasan_slab_free+0xe1/0x110 mm/kasan/common.c:362
 kasan_slab_free include/linux/kasan.h:192 [inline]
 slab_free_hook mm/slub.c:1547 [inline]
 slab_free_freelist_hook+0x5d/0x150 mm/slub.c:1580
 slab_free mm/slub.c:3143 [inline]
 kfree+0xdb/0x3b0 mm/slub.c:4139
 cgroup_pressure_write+0x12f/0x4f0 kernel/cgroup/cgroup.c:3583
 cgroup_file_write+0x268/0x690 kernel/cgroup/cgroup.c:3698
 kernfs_fop_write_iter+0x2c5/0x460 fs/kernfs/file.c:296
 call_write_iter include/linux/fs.h:1901 [inline]
 new_sync_write+0x35d/0x5f0 fs/read_write.c:518
 vfs_write+0x5be/0x870 fs/read_write.c:605
 ksys_write+0xf4/0x1d0 fs/read_write.c:658
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Last potentially related work creation:
 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
 kasan_record_aux_stack+0xc5/0xf0 mm/kasan/generic.c:344
 insert_work+0x42/0x300 kernel/workqueue.c:1331
 __queue_work+0x497/0xcb0 kernel/workqueue.c:1497
 queue_work_on+0x6d/0x80 kernel/workqueue.c:1524
 queue_work include/linux/workqueue.h:507 [inline]
 call_usermodehelper_exec+0x1b8/0x430 kernel/umh.c:433
 kobject_uevent_env+0xc6f/0x12c0 lib/kobject_uevent.c:617
 device_add+0x941/0x1ad0 drivers/base/core.c:3090
 device_create_groups_vargs+0x1c8/0x230 drivers/base/core.c:3759
 device_create+0xa1/0xd0 drivers/base/core.c:3801
 bdi_register_va.part.0+0x91/0x6d0 mm/backing-dev.c:810
 bdi_register_va mm/backing-dev.c:845 [inline]
 bdi_register+0x110/0x130 mm/backing-dev.c:842
 __device_add_disk+0xa42/0x1020 block/genhd.c:748
 add_disk include/linux/genhd.h:241 [inline]
 nbd_dev_add+0x661/0x850 drivers/block/nbd.c:1739
 nbd_init+0x160/0x175 drivers/block/nbd.c:2394
 do_one_initcall+0xbe/0x430 init/main.c:1223
 do_initcall_level init/main.c:1296 [inline]
 do_initcalls init/main.c:1312 [inline]
 do_basic_setup init/main.c:1332 [inline]
 kernel_init_freeable+0x570/0x5ca init/main.c:1533
 kernel_init+0x8/0x108 init/main.c:1421
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296

The buggy address belongs to the object at ffff8880168f3e00
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 64 bytes inside of
 192-byte region [ffff8880168f3e00, ffff8880168f3ec0)
The buggy address belongs to the page:
page:000000000a139344 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x168f3
flags: 0xfff00000000200(slab)
raw: 00fff00000000200 0000000000000000 0000000a00000001 ffff88800f441500
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 6743796608
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x144/0x1c0 mm/page_alloc.c:2297
 prep_new_page mm/page_alloc.c:2306 [inline]
 get_page_from_freelist+0x1c6e/0x3f80 mm/page_alloc.c:3945
 __alloc_pages_nodemask+0x2d6/0x730 mm/page_alloc.c:4995
 __alloc_pages include/linux/gfp.h:511 [inline]
 alloc_page_interleave+0xf/0x190 mm/mempolicy.c:2133
 alloc_pages include/linux/gfp.h:547 [inline]
 alloc_slab_page mm/slub.c:1618 [inline]
 allocate_slab+0x2b6/0x4a0 mm/slub.c:1758
 new_slab mm/slub.c:1821 [inline]
 new_slab_objects mm/slub.c:2578 [inline]
 ___slab_alloc+0x476/0x790 mm/slub.c:2741
 __slab_alloc.constprop.0+0x95/0xe0 mm/slub.c:2781
 slab_alloc_node mm/slub.c:2857 [inline]
 slab_alloc mm/slub.c:2900 [inline]
 kmem_cache_alloc_trace+0x2cc/0x360 mm/slub.c:2917
 kmalloc include/linux/slab.h:552 [inline]
 kzalloc include/linux/slab.h:682 [inline]
 call_usermodehelper_setup+0x7f/0x300 kernel/umh.c:363
 kobject_uevent_env+0xc5b/0x12c0 lib/kobject_uevent.c:613
 device_add+0x941/0x1ad0 drivers/base/core.c:3090
 device_create_groups_vargs+0x1c8/0x230 drivers/base/core.c:3759
 device_create+0xa1/0xd0 drivers/base/core.c:3801
 bdi_register_va.part.0+0x91/0x6d0 mm/backing-dev.c:810
 bdi_register_va mm/backing-dev.c:845 [inline]
 bdi_register+0x110/0x130 mm/backing-dev.c:842
 __device_add_disk+0xa42/0x1020 block/genhd.c:748
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1271 [inline]
 free_pcp_prepare+0x2cb/0x410 mm/page_alloc.c:1306
 free_unref_page_prepare mm/page_alloc.c:3200 [inline]
 free_unref_page+0x12/0x1b0 mm/page_alloc.c:3248
 mm_free_pgd kernel/fork.c:632 [inline]
 __mmdrop+0xb9/0x350 kernel/fork.c:683
 free_bprm+0x5b/0x290 fs/exec.c:1477
 kernel_execve+0x2cc/0x3e0 fs/exec.c:1971
 call_usermodehelper_exec_async+0x2c1/0x500 kernel/umh.c:110
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296

Memory state around the buggy address:
 ffff8880168f3d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880168f3d80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
>ffff8880168f3e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff8880168f3e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff8880168f3f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================