Extracting prog: 2m14.213516954s Minimizing prog: 31m36.421681909s Simplifying prog options: 0s Extracting C: 35.645158792s Simplifying C: 7m53.064669874s extracting reproducer from 2 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-openat$vnet-pipe-socket$inet_udp-write$binfmt_misc-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0) pipe(0x0) r4 = socket$inet_udp(0x2, 0x2, 0x0) write$binfmt_misc(0xffffffffffffffff, &(0x7f0000000000), 0xfffffecc) splice(0xffffffffffffffff, 0x0, r4, 0x0, 0x4ffe6, 0x0) program crashed: WARNING: refcount bug in bt_tags_iter single: successfully extracted reproducer found reproducer with 17 syscalls minimizing guilty program testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-openat$vnet-pipe-socket$inet_udp-write$binfmt_misc detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0) pipe(0x0) socket$inet_udp(0x2, 0x2, 0x0) write$binfmt_misc(0xffffffffffffffff, &(0x7f0000000000), 0xfffffecc) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-openat$vnet-pipe-socket$inet_udp-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0) pipe(0x0) r4 = socket$inet_udp(0x2, 0x2, 0x0) splice(0xffffffffffffffff, 0x0, r4, 0x0, 0x4ffe6, 0x0) program crashed: WARNING: refcount bug in blk_mq_dispatch_rq_list testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-openat$vnet-pipe-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0) pipe(0x0) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program crashed: WARNING: refcount bug in blk_done_softirq testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-openat$vnet-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) openat$vnet(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program crashed: WARNING: refcount bug in blk_mq_dispatch_rq_list testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program crashed: WARNING: refcount bug in blk_done_softirq testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r2, 0xab00, r3) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-syz_open_dev$ndb-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) r2 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) ioctl$NBD_SET_SOCK(r2, 0xab00, 0xffffffffffffffff) ioctl$NBD_SET_SIZE_BLOCKS(r2, 0xab07, 0x4) ioctl$NBD_DO_IT(r2, 0xab03) ioctl$NBD_CLEAR_SOCK(r2, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-connect$bt_l2cap-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r1 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) ioctl$NBD_SET_SIZE_BLOCKS(0xffffffffffffffff, 0xab07, 0x4) ioctl$NBD_DO_IT(0xffffffffffffffff, 0xab03) ioctl$NBD_CLEAR_SOCK(0xffffffffffffffff, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_init_net_socket$bt_l2cap-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r0 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r1, 0xab00, r2) ioctl$NBD_SET_SIZE_BLOCKS(r1, 0xab07, 0x4) ioctl$NBD_DO_IT(r1, 0xab03) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program crashed: WARNING: refcount bug in blk_done_softirq testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r0 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r1, 0xab00, r2) ioctl$NBD_SET_SIZE_BLOCKS(r1, 0xab07, 0x4) ioctl$NBD_DO_IT(r1, 0xab03) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program crashed: WARNING: refcount bug in blk_mq_dispatch_rq_list testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_create-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r0 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc)) r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r1, 0xab00, r2) ioctl$NBD_SET_SIZE_BLOCKS(r1, 0xab07, 0x4) ioctl$NBD_DO_IT(r1, 0xab03) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-gettid-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) gettid() timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) r0 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r0, 0xab00, r1) ioctl$NBD_SET_SIZE_BLOCKS(r0, 0xab07, 0x4) ioctl$NBD_DO_IT(r0, 0xab03) ioctl$NBD_CLEAR_SOCK(r0, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$cgroup_ro-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) r0 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r0, 0xab00, r1) ioctl$NBD_SET_SIZE_BLOCKS(r0, 0xab07, 0x4) ioctl$NBD_DO_IT(r0, 0xab03) ioctl$NBD_CLEAR_SOCK(r0, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r1, 0xab00, r2) ioctl$NBD_SET_SIZE_BLOCKS(r1, 0xab07, 0x4) ioctl$NBD_DO_IT(r1, 0xab03) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program crashed: WARNING: refcount bug in blk_mq_dispatch_rq_list testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: gettid() timer_create(0x0, 0x0, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) r0 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r0, 0xab00, r1) ioctl$NBD_SET_SIZE_BLOCKS(r0, 0xab07, 0x4) ioctl$NBD_DO_IT(r0, 0xab03) ioctl$NBD_CLEAR_SOCK(r0, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, 0x0) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r1, 0xab00, r2) ioctl$NBD_SET_SIZE_BLOCKS(r1, 0xab07, 0x4) ioctl$NBD_DO_IT(r1, 0xab03) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, 0x0, 0x0) r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r1, 0xab00, r2) ioctl$NBD_SET_SIZE_BLOCKS(r1, 0xab07, 0x4) ioctl$NBD_DO_IT(r1, 0xab03) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) r1 = syz_open_dev$ndb(0x0, 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r1, 0xab00, r2) ioctl$NBD_SET_SIZE_BLOCKS(r1, 0xab07, 0x4) ioctl$NBD_DO_IT(r1, 0xab03) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash testing program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice detailed listing: executing program 0: r0 = gettid() timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc)) timer_settime(0x0, 0x0, &(0x7f0000000280)={{0x0, 0x3938700}, {0x0, 0x3938700}}, 0x0) r1 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x2) socketpair$nbd(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(r1, 0xab00, 0xffffffffffffffff) ioctl$NBD_SET_SIZE_BLOCKS(r1, 0xab07, 0x4) ioctl$NBD_DO_IT(r1, 0xab03) ioctl$NBD_CLEAR_SOCK(r1, 0xab04) splice(0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0, 0x4ffe6, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program crashed: WARNING: refcount bug in bt_tags_iter simplifying C reproducer testing compiled C program (duration=58.686702042s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program did not crash testing compiled C program (duration=58.686702042s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program did not crash testing compiled C program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program did not crash testing compiled C program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program crashed: WARNING: refcount bug in bt_tags_iter testing compiled C program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program crashed: WARNING: refcount bug in bt_tags_iter testing compiled C program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program crashed: WARNING: refcount bug in blk_done_softirq testing compiled C program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program crashed: WARNING: refcount bug in blk_mq_dispatch_rq_list testing compiled C program (duration=58.686702042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): gettid-timer_create-timer_settime-syz_open_dev$ndb-socketpair$nbd-ioctl$NBD_SET_SOCK-ioctl$NBD_SET_SIZE_BLOCKS-ioctl$NBD_DO_IT-ioctl$NBD_CLEAR_SOCK-splice program crashed: WARNING: refcount bug in blk_mq_dispatch_rq_list reproducing took 42m19.345077508s repro crashed as (corrupted=false): Buffer I/O error on dev nbd4, logical block 0, async page read ------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 0 PID: 4739 at lib/refcount.c:28 refcount_warn_saturate+0x14e/0x1a0 lib/refcount.c:28 Modules linked in: CPU: 0 PID: 4739 Comm: kworker/0:2H Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: kblockd blk_mq_run_work_fn RIP: 0010:refcount_warn_saturate+0x14e/0x1a0 lib/refcount.c:28 Code: 09 01 48 c7 c7 c0 b5 f9 8a e8 2e 42 38 fd 0f 0b eb 8d e8 85 a8 6c fd c6 05 cb 10 e3 09 01 48 c7 c7 20 b6 f9 8a e8 12 42 38 fd <0f> 0b e9 6e ff ff ff e8 66 a8 6c fd c6 05 ad 10 e3 09 01 48 c7 c7 RSP: 0018:ffffc90003f7f788 EFLAGS: 00010246 RAX: 0c35e3aff4926b00 RBX: 0000000000000003 RCX: ffff888078993b80 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 0000000000000003 R08: ffffffff8166aa8c R09: ffffed10171c4f24 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802120a000 R13: dffffc0000000000 R14: ffffc90003f7fa20 R15: ffff88802136fc00 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbcd60abd58 CR3: 000000007443e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_end_request block/blk-mq.c:577 [inline] blk_mq_dispatch_rq_list+0xc47/0x1f30 block/blk-mq.c:1408 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:200 [inline] blk_mq_do_dispatch_sched+0x755/0xd50 block/blk-mq-sched.c:214 __blk_mq_sched_dispatch_requests+0x39b/0x490 blk_mq_sched_dispatch_requests+0xf3/0x1b0 block/blk-mq-sched.c:366 __blk_mq_run_hw_queue+0x11a/0x1b0 block/blk-mq.c:1511 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 final repro crashed as (corrupted=false): Buffer I/O error on dev nbd4, logical block 0, async page read ------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 0 PID: 4739 at lib/refcount.c:28 refcount_warn_saturate+0x14e/0x1a0 lib/refcount.c:28 Modules linked in: CPU: 0 PID: 4739 Comm: kworker/0:2H Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: kblockd blk_mq_run_work_fn RIP: 0010:refcount_warn_saturate+0x14e/0x1a0 lib/refcount.c:28 Code: 09 01 48 c7 c7 c0 b5 f9 8a e8 2e 42 38 fd 0f 0b eb 8d e8 85 a8 6c fd c6 05 cb 10 e3 09 01 48 c7 c7 20 b6 f9 8a e8 12 42 38 fd <0f> 0b e9 6e ff ff ff e8 66 a8 6c fd c6 05 ad 10 e3 09 01 48 c7 c7 RSP: 0018:ffffc90003f7f788 EFLAGS: 00010246 RAX: 0c35e3aff4926b00 RBX: 0000000000000003 RCX: ffff888078993b80 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 0000000000000003 R08: ffffffff8166aa8c R09: ffffed10171c4f24 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802120a000 R13: dffffc0000000000 R14: ffffc90003f7fa20 R15: ffff88802136fc00 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbcd60abd58 CR3: 000000007443e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_end_request block/blk-mq.c:577 [inline] blk_mq_dispatch_rq_list+0xc47/0x1f30 block/blk-mq.c:1408 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:200 [inline] blk_mq_do_dispatch_sched+0x755/0xd50 block/blk-mq-sched.c:214 __blk_mq_sched_dispatch_requests+0x39b/0x490 blk_mq_sched_dispatch_requests+0xf3/0x1b0 block/blk-mq-sched.c:366 __blk_mq_run_hw_queue+0x11a/0x1b0 block/blk-mq.c:1511 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287