ci starts bisection 2023-06-01 19:22:59.207423781 +0000 UTC m=+19332.705378317 bisecting fixing commit since 77856d911a8c8724ee8e2b09d55979fc1de8f1c0 building syzkaller on 05494336991504e3c6137b89eeddd492e17af6b6 ensuring issue is reproducible on original commit 77856d911a8c8724ee8e2b09d55979fc1de8f1c0 testing commit 77856d911a8c8724ee8e2b09d55979fc1de8f1c0 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: cd20039e1ab25924ad8b17f46a7d0230de18f826cf948ac841134024351fa9c5 run #0: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #1: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #2: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #3: crashed: SYZFATAL: executor failed NUM times: executor NUM: EOF run #4: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #5: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #6: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #7: basic kernel testing failed: failed to copy 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" "-v" "/tmp/syz-executor2263729161" "root@10.128.10.21:./syz-executor2263729161"]: exit status 1 Executing: program /usr/bin/ssh host 10.128.10.21, user root, command scp -v -t ./syz-executor2263729161 OpenSSH_8.4p1 Debian-5+deb11u1, OpenSSL 1.1.1n 15 Mar 2022 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.21 [10.128.10.21] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_8.4p1 Debian-5+deb11u1 debug1: Remote protocol version 2.0, remote software version OpenSSH_9.1 debug1: match: OpenSSH_9.1 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 10.128.10.21:22 as 'root' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: curve25519-sha256 debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ecdsa-sha2-nistp256 SHA256:gQhgaUJA96zS7vuXoCqEcK/oY5Wvh4Si9F03wse36pI Warning: Permanently added '10.128.10.21' (ECDSA) to the list of known hosts. debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks debug1: Will attempt key: /root/.ssh/id_rsa debug1: Will attempt key: /root/.ssh/id_dsa debug1: Will attempt key: /root/.ssh/id_ecdsa debug1: Will attempt key: /root/.ssh/id_ecdsa_sk debug1: Will attempt key: /root/.ssh/id_ed25519 debug1: Will attempt key: /root/.ssh/id_ed25519_sk debug1: Will attempt key: /root/.ssh/id_xmss debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs= debug1: kex_input_ext_info: publickey-hostbound@openssh.com (unrecognised) debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentication succeeded (none). Authenticated to 10.128.10.21 ([10.128.10.21]:22). debug1: channel 0: new [client-session] debug1: Requesting no-more-sessions@openssh.com debug1: Entering interactive session. debug1: pledge: network debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0 debug1: Sending command: scp -v -t ./syz-executor2263729161 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0 debug1: channel 0: free: client-session, nchannels 1 lost connection debug1: fd 0 clearing O_NONBLOCK debug1: fd 2 clearing O_NONBLOCK Transferred: sent 1860, received 2492 bytes, in 0.1 seconds Bytes per second: sent 24435.8, received 32738.7 debug1: Exit status 0 run #8: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #9: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #10: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #11: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #12: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #13: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #14: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #15: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #16: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #17: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #18: crashed: KASAN: use-after-free Read in reiserfs_release_objectid run #19: crashed: KASAN: out-of-bounds Read in reiserfs_release_objectid testing current HEAD 929ed21dfdb6ee94391db51c9eedb63314ef6847 testing commit 929ed21dfdb6ee94391db51c9eedb63314ef6847 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 1afa4d955d8ad54d276621432f67cf9ca9c19a1dafe876b175dcc6901a81be95 run #0: crashed: fatal error: unexpected signal during runtime execution run #1: crashed: fatal error: fault run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: crashed: fatal error: unexpected signal during runtime execution run #8: OK run #9: OK reproducer seems to be flaky crash still not fixed/happens on the oldest tested release Reproducer flagged being flaky revisions tested: 2, total time: 31m4.555318849s (build: 17m45.067935222s, test: 12m27.603360784s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Merge tag '6.4-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 crash: fatal error: unexpected signal during runtime execution fatal error: unexpected signal during runtime execution [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x415865] goroutine 244 [running]: runtime.throw({0xad80c3?, 0xc000542340?}) /usr/local/go/src/runtime/panic.go:1047 +0x5d fp=0xc000059550 sp=0xc000059520 pc=0x43627d runtime.sigpanic() /usr/local/go/src/runtime/signal_unix.go:821 +0x3e9 fp=0xc0000595b0 sp=0xc000059550 pc=0x44cf69 runtime.writeHeapBits.flush({0x0?, 0x3d?, 0x180a?, 0xc0000596a4?}, 0x0?, 0xc0003b62d0?) /usr/local/go/src/runtime/mbitmap.go:868 +0x85 fp=0xc0000595d0 sp=0xc0000595b0 pc=0x415865 runtime.heapBitsSetType(0x808400270, 0x20, 0x20, 0xa04040) /usr/local/go/src/runtime/mbitmap.go:1082 +0x290 fp=0xc000059688 sp=0xc0000595d0 pc=0x415c50 runtime.mallocgc(0x20, 0xa04040, 0x1) /usr/local/go/src/runtime/malloc.go:1074 +0x5c5 fp=0xc0000596f0 sp=0xc000059688 pc=0x40da05 runtime.newobject(0xc00003f290?) /usr/local/go/src/runtime/malloc.go:1254 +0x27 fp=0xc000059718 sp=0xc0000596f0 pc=0x40de27 os/exec.(*Cmd).Wait(0xc0011126e0) /usr/local/go/src/os/exec/exec.go:892 +0x7b fp=0xc000059780 sp=0xc000059718 pc=0x68f45b github.com/google/syzkaller/pkg/ipc.makeCommand.func3(0xc0003e2230) /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:653 +0x32 fp=0xc0000597c8 sp=0xc000059780 pc=0x8e30d2 github.com/google/syzkaller/pkg/ipc.makeCommand.func8() /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:658 +0x2a fp=0xc0000597e0 sp=0xc0000597c8 pc=0x8e306a runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc0000597e8 sp=0xc0000597e0 pc=0x4693e1 created by github.com/google/syzkaller/pkg/ipc.makeCommand /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:652 +0xc7c goroutine 1 [semacquire]: runtime.gopark(0x8d4b2f?, 0xc000f3fd70?, 0x0?, 0x95?, 0xc000245670?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000f3fd00 sp=0xc000f3fce0 pc=0x438f96 runtime.goparkunlock(...) /usr/local/go/src/runtime/proc.go:387 runtime.semacquire1(0xc0003bfaf8, 0x78?, 0x1, 0x0, 0xa0?) /usr/local/go/src/runtime/sema.go:160 +0x20f fp=0xc000f3fd68 sp=0xc000f3fd00 pc=0x44a18f sync.runtime_Semacquire(0x6950b6?) /usr/local/go/src/runtime/sema.go:62 +0x27 fp=0xc000f3fda0 sp=0xc000f3fd68 pc=0x465187 sync.(*WaitGroup).Wait(0xc00007c1e0?) /usr/local/go/src/sync/waitgroup.go:116 +0x4b fp=0xc000f3fdc8 sp=0xc000f3fda0 pc=0x4740eb main.main() /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/tools/syz-execprog/execprog.go:124 +0x6b2 fp=0xc000f3ff80 sp=0xc000f3fdc8 pc=0x8e6572 runtime.main() /usr/local/go/src/runtime/proc.go:250 +0x207 fp=0xc000f3ffe0 sp=0xc000f3ff80 pc=0x438b67 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000f3ffe8 sp=0xc000f3ffe0 pc=0x4693e1 goroutine 2 [force gc (idle)]: runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000056fb0 sp=0xc000056f90 pc=0x438f96 runtime.goparkunlock(...) /usr/local/go/src/runtime/proc.go:387 runtime.forcegchelper() /usr/local/go/src/runtime/proc.go:305 +0xb0 fp=0xc000056fe0 sp=0xc000056fb0 pc=0x438dd0 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000056fe8 sp=0xc000056fe0 pc=0x4693e1 created by runtime.init.6 /usr/local/go/src/runtime/proc.go:293 +0x25 goroutine 3 [GC sweep wait]: runtime.gopark(0x1?, 0x0?, 0x0?, 0x0?, 0x0?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000057780 sp=0xc000057760 pc=0x438f96 runtime.goparkunlock(...) /usr/local/go/src/runtime/proc.go:387 runtime.bgsweep(0x0?) /usr/local/go/src/runtime/mgcsweep.go:319 +0xde fp=0xc0000577c8 sp=0xc000057780 pc=0x42415e runtime.gcenable.func1() /usr/local/go/src/runtime/mgc.go:178 +0x26 fp=0xc0000577e0 sp=0xc0000577c8 pc=0x4193e6 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc0000577e8 sp=0xc0000577e0 pc=0x4693e1 created by runtime.gcenable /usr/local/go/src/runtime/mgc.go:178 +0x6b goroutine 4 [GC scavenge wait]: runtime.gopark(0xc000074000?, 0xc4d350?, 0x0?, 0x0?, 0x0?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000057f70 sp=0xc000057f50 pc=0x438f96 runtime.goparkunlock(...) /usr/local/go/src/runtime/proc.go:387 runtime.(*scavengerState).park(0x1e7ade0) /usr/local/go/src/runtime/mgcscavenge.go:400 +0x53 fp=0xc000057fa0 sp=0xc000057f70 pc=0x422053 runtime.bgscavenge(0x0?) /usr/local/go/src/runtime/mgcscavenge.go:633 +0x65 fp=0xc000057fc8 sp=0xc000057fa0 pc=0x422645 runtime.gcenable.func2() /usr/local/go/src/runtime/mgc.go:179 +0x26 fp=0xc000057fe0 sp=0xc000057fc8 pc=0x419386 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000057fe8 sp=0xc000057fe0 pc=0x4693e1 created by runtime.gcenable /usr/local/go/src/runtime/mgc.go:179 +0xaa goroutine 5 [finalizer wait]: runtime.gopark(0x439312?, 0x7fa56538e9a8?, 0x0?, 0x0?, 0xc000056770?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000056628 sp=0xc000056608 pc=0x438f96 runtime.runfinq() /usr/local/go/src/runtime/mfinal.go:193 +0x107 fp=0xc0000567e0 sp=0xc000056628 pc=0x418427 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc0000567e8 sp=0xc0000567e0 pc=0x4693e1 created by runtime.createfing /usr/local/go/src/runtime/mfinal.go:163 +0x45 goroutine 6 [select]: runtime.gopark(0xc000058788?, 0x3?, 0x90?, 0x0?, 0xc000058772?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc0000585f8 sp=0xc0000585d8 pc=0x438f96 runtime.selectgo(0xc000058788, 0xc00005876c, 0xc0000ff900?, 0x0, 0x0?, 0x1) /usr/local/go/src/runtime/select.go:327 +0x7be fp=0xc000058738 sp=0xc0000585f8 pc=0x44909e go.opencensus.io/stats/view.(*worker).start(0xc0000ff900) /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/vendor/go.opencensus.io/stats/view/worker.go:276 +0xad fp=0xc0000587c8 sp=0xc000058738 pc=0x882ead go.opencensus.io/stats/view.init.0.func1() /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/vendor/go.opencensus.io/stats/view/worker.go:34 +0x26 fp=0xc0000587e0 sp=0xc0000587c8 pc=0x882126 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc0000587e8 sp=0xc0000587e0 pc=0x4693e1 created by go.opencensus.io/stats/view.init.0 /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/vendor/go.opencensus.io/stats/view/worker.go:34 +0x96 goroutine 17 [GC worker (idle)]: runtime.gopark(0xba08bdf1f?, 0x0?, 0x0?, 0x0?, 0x0?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000052750 sp=0xc000052730 pc=0x438f96 runtime.gcBgMarkWorker() /usr/local/go/src/runtime/mgc.go:1275 +0xf1 fp=0xc0000527e0 sp=0xc000052750 pc=0x41b151 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc0000527e8 sp=0xc0000527e0 pc=0x4693e1 created by runtime.gcBgMarkStartWorkers /usr/local/go/src/runtime/mgc.go:1199 +0x25 goroutine 18 [GC worker (idle)]: runtime.gopark(0xba08c0ab7?, 0x0?, 0x0?, 0x0?, 0x0?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000052f50 sp=0xc000052f30 pc=0x438f96 runtime.gcBgMarkWorker() /usr/local/go/src/runtime/mgc.go:1275 +0xf1 fp=0xc000052fe0 sp=0xc000052f50 pc=0x41b151 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000052fe8 sp=0xc000052fe0 pc=0x4693e1 created by runtime.gcBgMarkStartWorkers /usr/local/go/src/runtime/mgc.go:1199 +0x25 goroutine 21 [chan receive]: runtime.gopark(0xc000455740?, 0xc001121ae8?, 0xc8?, 0x1a?, 0x4bf1aa?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc001121a88 sp=0xc001121a68 pc=0x438f96 runtime.chanrecv(0xc00117e840, 0xc001121c60, 0x1) /usr/local/go/src/runtime/chan.go:583 +0x49d fp=0xc001121b18 sp=0xc001121a88 pc=0x406f5d runtime.chanrecv1(0xc00128ed80?, 0xc89f08?) /usr/local/go/src/runtime/chan.go:442 +0x18 fp=0xc001121b40 sp=0xc001121b18 pc=0x406a98 github.com/google/syzkaller/pkg/ipc.(*command).wait(...) /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:739 github.com/google/syzkaller/pkg/ipc.(*command).exec(0xc0003e2230, 0x7fa53d8f8000?, {0x0, 0x0, 0x0}) /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:820 +0x871 fp=0xc001121ce8 sp=0xc001121b40 pc=0x8e4471 github.com/google/syzkaller/pkg/ipc.(*Env).Exec(0xc000484090, 0xc00007a0d0?, 0xc001069f00) /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:287 +0x24e fp=0xc001121dc8 sp=0xc001121ce8 pc=0x8e018e main.(*Context).execute(0xc0003e2000, 0x0?, 0x0?, 0x0?) /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/tools/syz-execprog/execprog.go:172 +0x150 fp=0xc001121f08 sp=0xc001121dc8 pc=0x8e6bf0 main.(*Context).run(0xc0003e2000, 0x0?) /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/tools/syz-execprog/execprog.go:157 +0xed fp=0xc001121fa0 sp=0xc001121f08 pc=0x8e694d main.main.func3() /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/tools/syz-execprog/execprog.go:120 +0x5c fp=0xc001121fe0 sp=0xc001121fa0 pc=0x8e671c runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc001121fe8 sp=0xc001121fe0 pc=0x4693e1 created by main.main /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/tools/syz-execprog/execprog.go:118 +0x617 goroutine 22 [chan receive]: runtime.gopark(0xc000053e88?, 0xc000053ee0?, 0xf3?, 0x33?, 0xc000053ee0?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000053eb0 sp=0xc000053e90 pc=0x438f96 runtime.chanrecv(0xc000079560, 0x0, 0x1) /usr/local/go/src/runtime/chan.go:583 +0x49d fp=0xc000053f40 sp=0xc000053eb0 pc=0x406f5d runtime.chanrecv1(0xc000079560?, 0xc000053fb0?) /usr/local/go/src/runtime/chan.go:442 +0x18 fp=0xc000053f68 sp=0xc000053f40 pc=0x406a98 github.com/google/syzkaller/pkg/osutil.HandleInterrupts.func1() /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:79 +0x8a fp=0xc000053fe0 sp=0xc000053f68 pc=0x69516a runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000053fe8 sp=0xc000053fe0 pc=0x4693e1 created by github.com/google/syzkaller/pkg/osutil.HandleInterrupts /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/osutil/osutil_unix.go:76 +0x56 goroutine 23 [select, locked to thread]: runtime.gopark(0xc0000547a8?, 0x2?, 0x12?, 0x93?, 0xc0000547a4?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc000054618 sp=0xc0000545f8 pc=0x438f96 runtime.selectgo(0xc0000547a8, 0xc0000547a0, 0x0?, 0x0, 0x0?, 0x1) /usr/local/go/src/runtime/select.go:327 +0x7be fp=0xc000054758 sp=0xc000054618 pc=0x44909e runtime.ensureSigM.func1() /usr/local/go/src/runtime/signal_unix.go:1000 +0x1af fp=0xc0000547e0 sp=0xc000054758 pc=0x46122f runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc0000547e8 sp=0xc0000547e0 pc=0x4693e1 created by runtime.ensureSigM /usr/local/go/src/runtime/signal_unix.go:983 +0xbd goroutine 24 [syscall]: runtime.notetsleepg(0x0?, 0x0?) /usr/local/go/src/runtime/lock_futex.go:236 +0x34 fp=0xc000054fa0 sp=0xc000054f68 pc=0x40c534 os/signal.signal_recv() /usr/local/go/src/runtime/sigqueue.go:152 +0x2f fp=0xc000054fc0 sp=0xc000054fa0 pc=0x4659af os/signal.loop() /usr/local/go/src/os/signal/signal_unix.go:23 +0x19 fp=0xc000054fe0 sp=0xc000054fc0 pc=0x6937f9 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000054fe8 sp=0xc000054fe0 pc=0x4693e1 created by os/signal.Notify.func1.1 /usr/local/go/src/os/signal/signal.go:151 +0x2a goroutine 240 [chan send]: runtime.gopark(0x1?, 0x2?, 0x0?, 0x0?, 0xc000044000?) /usr/local/go/src/runtime/proc.go:381 +0xd6 fp=0xc0000556a0 sp=0xc000055680 pc=0x438f96 runtime.chansend(0xc00128ede0, 0xc83648, 0x1, 0xc001290558?) /usr/local/go/src/runtime/chan.go:259 +0x42e fp=0xc000055728 sp=0xc0000556a0 pc=0x40618e runtime.chansend1(0xc0000557b0?, 0xc000055788?) /usr/local/go/src/runtime/chan.go:145 +0x1d fp=0xc000055758 sp=0xc000055728 pc=0x405d3d github.com/google/syzkaller/pkg/ipc.(*command).exec.func1() /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:778 +0xac fp=0xc0000557e0 sp=0xc000055758 pc=0x8e482c runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:1598 +0x1 fp=0xc0000557e8 sp=0xc0000557e0 pc=0x4693e1 created by github.com/google/syzkaller/pkg/ipc.(*command).exec /syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:770 +0x25b