Extracting prog: 4m23.847812061s
Minimizing prog: 1h7m15.92891848s
Simplifying prog options: 0s
Extracting C: 6m6.839649563s
Simplifying C: 35m52.69882256s


extracting reproducer from 51 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-unshare-socket-ioctl$FAT_IOCTL_GET_VOLUME_ID-socket$nl_route-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
r0 = syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
unshare(0x6a040000)
r1 = socket(0x8, 0x4, 0x0)
ioctl$FAT_IOCTL_GET_VOLUME_ID(r0, 0x80047213, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_netrom_SIOCADDRT(r1, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r1, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program crashed: INFO: rcu detected stall in corrupted
single: successfully extracted reproducer
found reproducer with 10 syscalls
minimizing guilty program
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-unshare-socket-ioctl$FAT_IOCTL_GET_VOLUME_ID-socket$nl_route-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
r0 = syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
unshare(0x6a040000)
r1 = socket(0x8, 0x4, 0x0)
ioctl$FAT_IOCTL_GET_VOLUME_ID(r0, 0x80047213, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_netrom_SIOCADDRT(r1, 0x6180, 0x0)

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-unshare-socket-ioctl$FAT_IOCTL_GET_VOLUME_ID-socket$nl_route-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
r0 = syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
unshare(0x6a040000)
r1 = socket(0x8, 0x4, 0x0)
ioctl$FAT_IOCTL_GET_VOLUME_ID(r0, 0x80047213, 0x0)
socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_netrom_SIOCADDRT(r1, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-unshare-socket-ioctl$FAT_IOCTL_GET_VOLUME_ID-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
r0 = syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
unshare(0x6a040000)
r1 = socket(0x8, 0x4, 0x0)
ioctl$FAT_IOCTL_GET_VOLUME_ID(r0, 0x80047213, 0x0)
ioctl$sock_netrom_SIOCADDRT(r1, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r1, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program crashed: INFO: rcu detected stall in x64_sys_call
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-unshare-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
unshare(0x6a040000)
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-unshare-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
unshare(0x6a040000)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(0xffffffffffffffff, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, 0x0)
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program did not crash
testing program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: INFO: rcu detected stall in x64_sys_call
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
validation run: crashed=false
testing program (duration=6m0s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program crashed: INFO: rcu detected stall in rtnl_newlink
validation run: crashed=true
testing program (duration=6m0s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program crashed: INFO: rcu detected stall in sys_openat
validation run: crashed=true
testing program (duration=6m0s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
detailed listing:
executing program 0:
socket$inet_icmp_raw(0x2, 0x3, 0x1)
syz_init_net_socket$bt_hci(0x1f, 0x3, 0x5)
close(0x4)
syz_open_procfs$namespace(0x0, &(0x7f0000000200)='ns/pid_for_children\x00')
r0 = socket(0x8, 0x4, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, 0x0)
ioctl$sock_netrom_SIOCADDRT(r0, 0x6180, &(0x7f0000000040)={0x0, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @rose={'rose', 0x0}, 0x6, 'syz0\x00', @bcast, 0xffffffff, 0x0, [@bcast, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x2}, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}]})

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
reproducing took 2h22m25.683445071s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=57837, q=319 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10500 (4294977752-4294967252), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10500 jiffies! g57837 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27912 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5325 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929
 __schedule_loop kernel/sched/core.c:7011 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7026
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 22093 Comm: syz.3.3936 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:atm_dev_release_vccs+0xcf/0x3d0 net/atm/common.c:273
Code: 8b 5e 68 4d 8d a6 90 05 00 00 4c 89 e0 48 c1 e8 03 80 3c 08 00 74 08 4c 89 e7 e8 6c eb ae f7 4d 39 2c 24 74 13 e8 a1 29 49 f7 <48> 85 db 0f 85 22 02 00 00 e9 b1 02 00 00 4d 8d a6 70 05 00 00 4c
RSP: 0018:ffffc9000560fc00 EFLAGS: 00000093
RAX: ffffffff8a76da1f RBX: ffff88807c577068 RCX: ffff888024481e40
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc9000560fae0
RBP: 1ffff1100f8aee0d R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000ac1f5c R12: ffff88807c577590
R13: ffff88807b245000 R14: ffff88807c577000 R15: ffff88807c577068
FS:  00005555804f5500(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f492cfced90 CR3: 000000002e954000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 atm_dev_deregister+0x187/0x2e0 net/atm/resources.c:151
 atmtcp_c_close+0x102/0x150 drivers/atm/atmtcp.c:257
 vcc_destroy_socket net/atm/common.c:181 [inline]
 vcc_release+0x10a/0x460 net/atm/common.c:205
 __sock_release net/socket.c:662 [inline]
 sock_close+0xc3/0x240 net/socket.c:1455
 __fput+0x44c/0xa70 fs/file_table.c:468
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e4d78f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffcb5a1da8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000000498a0 RCX: 00007f2e4d78f749
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f2e4d9e7da0 R08: 0000000000000001 R09: 00000007cb5a209f
R10: 0000001b31620000 R11: 0000000000000246 R12: 00007f2e4d9e5fac
R13: 00007f2e4d9e5fa0 R14: ffffffffffffffff R15: 00007fffcb5a1ec0
 </TASK>

report is corrupted, running repro again
testing compiled C program (duration=6m0s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_icmp_raw-syz_init_net_socket$bt_hci-close-syz_open_procfs$namespace-socket-ioctl$sock_netrom_SIOCADDRT-ioctl$sock_netrom_SIOCADDRT
program crashed: INFO: rcu detected stall in corrupted
final repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=9697, q=335 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10498 (4294956255-4294945757), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10498 jiffies! g9697 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27224 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5325 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929
 __schedule_loop kernel/sched/core.c:7011 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7026
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 5867 Comm: modprobe Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline]
RIP: 0010:smp_call_function_many_cond+0xd33/0x12d0 kernel/smp.c:877
Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 e6 73 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 91 6f 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 75 6f
RSP: 0018:ffffc9000402f580 EFLAGS: 00000293
RAX: ffffffff81b4944b RBX: 1ffff11017127ffd RCX: ffff888054f05ac0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000402f700 R08: ffffffff8f7cee77 R09: 1ffffffff1ef9dce
R10: dffffc0000000000 R11: fffffbfff1ef9dcf R12: ffff8880b893ffe8
R13: dffffc0000000000 R14: ffff8880b883b240 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa00a32b6b0 CR3: 000000000dd38000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1043
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:1381 [inline]
 flush_tlb_mm_range+0x6b1/0x12d0 arch/x86/mm/tlb.c:1471
 tlb_flush arch/x86/include/asm/tlb.h:23 [inline]
 tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:490 [inline]
 tlb_flush_mmu+0x1a7/0x680 mm/mmu_gather.c:403
 tlb_finish_mmu+0xc3/0x1d0 mm/mmu_gather.c:497
 free_ldt_pgtables+0x17b/0x320 arch/x86/kernel/ldt.c:411
 arch_exit_mmap arch/x86/include/asm/mmu_context.h:234 [inline]
 exit_mmap+0x174/0xb40 mm/mmap.c:1266
 __mmput+0x118/0x430 kernel/fork.c:1133
 exit_mm+0x1da/0x2c0 kernel/exit.c:582
 do_exit+0x648/0x2300 kernel/exit.c:954
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 __do_sys_exit_group kernel/exit.c:1118 [inline]
 __se_sys_exit_group kernel/exit.c:1116 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1116
 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa00a32b6c5
Code: Unable to access opcode bytes at 0x7fa00a32b69b.
RSP: 002b:00007fff51ee4cf8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fa00a42cfe8 RCX: 00007fa00a32b6c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000001
RBP: 0000000000000001 R08: 00007fff51ee4c88 R09: 0000000000000000
R10: 00007fff51ee4b20 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fa00a42b680 R15: 00007fa00a42d000
 </TASK>
sched: DL replenish lagged too much