Extracting prog: 7m28.737630043s
Minimizing prog: 2h52m6.230210882s
Simplifying prog options: 18m31.788411329s
Extracting C: 5m16.194486684s
Simplifying C: 0s


extracting reproducer from 27 programs
testing a last program of every proc
single: executing 7 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG-socket-sendmmsg$auto-socket$nl_generic-openat$auto_kvm_chardev_ops_kvm_main-mmap$auto-close_range$auto-socket-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)
r5 = socket(0x10, 0x2, 0x0)
sendmmsg$auto(r5, &(0x7f0000000200)={{0x0, 0x1f00, &(0x7f0000000100)={0x0, 0xfdef}, 0x2, 0x0, 0x7, 0xa505}, 0x700}, 0x7, 0x4008)
socket$nl_generic(0x10, 0x3, 0x10)
openat$auto_kvm_chardev_ops_kvm_main(0xffffffffffffff9c, &(0x7f0000000000), 0x101000, 0x0)
mmap$auto(0x0, 0xe983, 0xdf, 0xeb1, 0x401, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
r6 = socket(0xf, 0x2, 0xffffffff)
ioctl$sock_SIOCGIFINDEX(r6, 0x8933, 0x0)

program crashed: INFO: task hung in remove_one
single: successfully extracted reproducer
found reproducer with 28 syscalls
minimizing guilty program
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG-socket-sendmmsg$auto-socket$nl_generic-openat$auto_kvm_chardev_ops_kvm_main-mmap$auto-close_range$auto-socket
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)
r5 = socket(0x10, 0x2, 0x0)
sendmmsg$auto(r5, &(0x7f0000000200)={{0x0, 0x1f00, &(0x7f0000000100)={0x0, 0xfdef}, 0x2, 0x0, 0x7, 0xa505}, 0x700}, 0x7, 0x4008)
socket$nl_generic(0x10, 0x3, 0x10)
openat$auto_kvm_chardev_ops_kvm_main(0xffffffffffffff9c, &(0x7f0000000000), 0x101000, 0x0)
mmap$auto(0x0, 0xe983, 0xdf, 0xeb1, 0x401, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
socket(0xf, 0x2, 0xffffffff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG-socket-sendmmsg$auto-socket$nl_generic-openat$auto_kvm_chardev_ops_kvm_main-mmap$auto-close_range$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)
r5 = socket(0x10, 0x2, 0x0)
sendmmsg$auto(r5, &(0x7f0000000200)={{0x0, 0x1f00, &(0x7f0000000100)={0x0, 0xfdef}, 0x2, 0x0, 0x7, 0xa505}, 0x700}, 0x7, 0x4008)
socket$nl_generic(0x10, 0x3, 0x10)
openat$auto_kvm_chardev_ops_kvm_main(0xffffffffffffff9c, &(0x7f0000000000), 0x101000, 0x0)
mmap$auto(0x0, 0xe983, 0xdf, 0xeb1, 0x401, 0x8000)
close_range$auto(0x2, 0x8, 0x0)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG-socket-sendmmsg$auto-socket$nl_generic-openat$auto_kvm_chardev_ops_kvm_main-mmap$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)
r5 = socket(0x10, 0x2, 0x0)
sendmmsg$auto(r5, &(0x7f0000000200)={{0x0, 0x1f00, &(0x7f0000000100)={0x0, 0xfdef}, 0x2, 0x0, 0x7, 0xa505}, 0x700}, 0x7, 0x4008)
socket$nl_generic(0x10, 0x3, 0x10)
openat$auto_kvm_chardev_ops_kvm_main(0xffffffffffffff9c, &(0x7f0000000000), 0x101000, 0x0)
mmap$auto(0x0, 0xe983, 0xdf, 0xeb1, 0x401, 0x8000)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG-socket-sendmmsg$auto-socket$nl_generic-openat$auto_kvm_chardev_ops_kvm_main
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)
r5 = socket(0x10, 0x2, 0x0)
sendmmsg$auto(r5, &(0x7f0000000200)={{0x0, 0x1f00, &(0x7f0000000100)={0x0, 0xfdef}, 0x2, 0x0, 0x7, 0xa505}, 0x700}, 0x7, 0x4008)
socket$nl_generic(0x10, 0x3, 0x10)
openat$auto_kvm_chardev_ops_kvm_main(0xffffffffffffff9c, &(0x7f0000000000), 0x101000, 0x0)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG-socket-sendmmsg$auto-socket$nl_generic
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)
r5 = socket(0x10, 0x2, 0x0)
sendmmsg$auto(r5, &(0x7f0000000200)={{0x0, 0x1f00, &(0x7f0000000100)={0x0, 0xfdef}, 0x2, 0x0, 0x7, 0xa505}, 0x700}, 0x7, 0x4008)
socket$nl_generic(0x10, 0x3, 0x10)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG-socket-sendmmsg$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)
r5 = socket(0x10, 0x2, 0x0)
sendmmsg$auto(r5, &(0x7f0000000200)={{0x0, 0x1f00, &(0x7f0000000100)={0x0, 0xfdef}, 0x2, 0x0, 0x7, 0xa505}, 0x700}, 0x7, 0x4008)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG-socket
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)
socket(0x10, 0x2, 0x0)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL-sendmsg$auto_NL80211_CMD_GET_REG
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)
sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000180)=ANY=[], 0x1ac}}, 0x40000)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto-sendmsg$auto_OVS_VPORT_CMD_DEL
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)
sendmsg$auto_OVS_VPORT_CMD_DEL(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000180)=ANY=[@ANYBLOB, @ANYBLOB="11002d"], 0x3c}, 0x1, 0x0, 0x0, 0x8000}, 0x8000)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl-statmount$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)
statmount$auto(0x0, &(0x7f0000000180)={0x8, 0x3ff, 0x9, 0x5, 0x14, 0x944, 0x1ffe4, 0x3, 0x6, 0x4, 0x9, 0x400005, 0x4000fff, 0x8000007, 0x8001, 0xd, 0x5, 0x3, 0x4, 0x7, 0x20, 0x309, 0x8, 0x0, 0x7fffffff, 0x0, 0x0, 0x0, 0x78, 0x0, 0x0, [0x3, 0x0, 0x0, 0x200, 0x9, 0x0, 0x0, 0x4, 0xffffffffffffffff, 0x0, 0x0, 0x4000000000000, 0x2000000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x82, 0x800000000002, 0x9, 0x0, 0xbec, 0x0, 0x0, 0xe, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x10, 0xfffffffffffffffe, 0xffffffffffffd059, 0x0, 0x0, 0x0, 0x2961, 0x0, 0x2]}, 0x2001fb, 0x7f)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT-openat$auto_proc_sys_file_operations_proc_sysctl
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/kernel/perf_event_max_contexts_per_stack\x00', 0x202, 0x0)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd-sendmsg$auto_NBD_CMD_CONNECT
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
r3 = socket$nl_generic(0x10, 0x3, 0x10)
r4 = syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)
sendmsg$auto_NBD_CMD_CONNECT(r3, &(0x7f0000001e00)={0x0, 0x0, &(0x7f0000001dc0)={&(0x7f0000000200)={0x34, r4, 0x1, 0x703d25, 0x25dfdbfd, {}, [@NBD_ATTR_SOCKETS={0x14, 0x7, 0x0, 0x1, [@nested={0xc, 0x1, 0x0, 0x1, [@nested={0x8, 0x1, 0x0, 0x1, [@generic='\x00\x00\x00\x00']}]}, @nested={0x4, 0x89}]}, @NBD_ATTR_SIZE_BYTES={0xc, 0x2, 0x6}]}, 0x34}, 0x1, 0x0, 0x0, 0x804}, 0x8880)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic-syz_genetlink_get_family_id$auto_nbd
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
syz_genetlink_get_family_id$auto_nbd(&(0x7f0000001d00), 0xffffffffffffffff)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto-socket$nl_generic
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto-socketpair$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)
socketpair$auto(0x1, 0x1, 0x8000000000000000, 0x0)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto-close_range$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)
close_range$auto(0x0, 0xfffffffffffff000, 0x2)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto-mmap$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)
mmap$auto(0x0, 0x2020009, 0x3, 0xeb1, 0xfffffffffffffffa, 0x8000)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r2 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r2, &(0x7f0000003900)='\t', 0x1)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto_ocfs2_control_fops_stack_user
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
r1 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto_ocfs2_control_fops_stack_user(r1, &(0x7f0000003900)='\t', 0x1)

program did not crash
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-openat$auto_kernfs_file_fops_kernfs_internal-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000480)='/sys/devices/virtual/net/bond0/bonding/arp_ip_target\x00', 0xa0002, 0x0)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
r1 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r1, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-write$auto_seq_oss_f_ops_seq_oss-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
write$auto_seq_oss_f_ops_seq_oss(r0, &(0x7f0000000040)="f6e6812018deadf7e88f819e30236ce79200e01532f2ed0d", 0x18)
write$auto(0xffffffffffffffff, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program did not crash
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_seq_oss_f_ops_seq_oss-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
openat$auto_seq_oss_f_ops_seq_oss(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x2, 0x0)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-bind$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
bind$auto(0x3, &(0x7f0000000000)=@generic={0x10, "a500acb75c9cedd1b5e9a0d76293"}, 0x68)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-socket$nl_generic-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
socket$nl_generic(0x10, 0x3, 0x10)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_tty_fops_tty_io-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/pts/ptmx\x00', 0x0, 0x0)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): close_range$auto-openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
close_range$auto(0x2, 0x8, 0x0)
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, 0x0, 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program did not crash
testing program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, 0x0, 0x1e1)

program did not crash
extracting C reproducer
testing compiled C program (duration=8m15.714294042s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=8m15.714294042s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
extracting C reproducer
testing compiled C program (duration=8m15.714294042s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=8m15.714294042s, {Threaded:false 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program did not crash
testing program (duration=8m15.714294042s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
validation run: crashed=true
testing program (duration=8m15.714294042s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
validation run: crashed=true
testing program (duration=8m15.714294042s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$auto_nsim_dev_health_break_fops_health-write$auto
detailed listing:
executing program 0:
r0 = openat$auto_nsim_dev_health_break_fops_health(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/debug/netdevsim/netdevsim2/health/break_health\x00', 0x48081, 0x0)
write$auto(r0, &(0x7f0000000080)=')@-!\x00', 0x1e1)

program crashed: INFO: task hung in remove_one
validation run: crashed=true
reproducing took 3h37m31.507032771s
repro crashed as (corrupted=false):
INFO: task kworker/u8:1:13 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:1    state:D stack:24576 pid:13    tgid:13    ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_timeout+0x1b2/0x280 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common+0x2e7/0x4c0 kernel/sched/completion.c:121
 __debugfs_file_removed fs/debugfs/inode.c:751 [inline]
 remove_one+0x312/0x420 fs/debugfs/inode.c:758
 __simple_recursive_removal+0x148/0x5c0 fs/libfs.c:624
 debugfs_remove+0x5d/0x80 fs/debugfs/inode.c:781
 nsim_dev_health_exit+0x3b/0xe0 drivers/net/netdevsim/health.c:227
 nsim_dev_reload_destroy+0x144/0x4a0 drivers/net/netdevsim/dev.c:1788
 nsim_dev_reload_down+0x66/0xd0 drivers/net/netdevsim/dev.c:1038
 devlink_reload+0x1ae/0x7a0 net/devlink/dev.c:462
 devlink_pernet_pre_exit+0x247/0x370 net/devlink/core.c:560
 ops_pre_exit_list net/core/net_namespace.c:161 [inline]
 ops_undo_list+0x187/0xab0 net/core/net_namespace.c:234
 cleanup_net+0x499/0x920 net/core/net_namespace.c:702
 process_one_work+0xa0e/0x1980 kernel/workqueue.c:3314
 process_scheduled_works kernel/workqueue.c:3397 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3478
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task syz-executor:9277 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:23976 pid:9277  tgid:9277  ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0xced/0x1b10 kernel/locking/mutex.c:820
 device_lock include/linux/device.h:1040 [inline]
 device_del+0xa0/0x9b0 drivers/base/core.c:3857
 device_unregister+0x1d/0xe0 drivers/base/core.c:3936
 nsim_bus_dev_del drivers/net/netdevsim/bus.c:491 [inline]
 del_device_store+0x346/0x480 drivers/net/netdevsim/bus.c:244
 bus_attr_store+0x74/0xb0 drivers/base/bus.c:172
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:142
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:352
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1070 fs/read_write.c:688
 ksys_write+0x12a/0x250 fs/read_write.c:740
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcdc2d5d68e
RSP: 002b:00007ffd5a0fb698 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555568291500 RCX: 00007fcdc2d5d68e
RDX: 0000000000000001 RSI: 00007ffd5a0fb720 RDI: 0000000000000005
RBP: 00007fcdc2e335f2 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd5a0fb720 R14: 00007fcdc3b44620 R15: 0000000000000003
 </TASK>
INFO: task syz.1.3257:9291 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.3257      state:D stack:28456 pid:9291  tgid:9291  ppid:8214   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0xced/0x1b10 kernel/locking/mutex.c:820
 devlink_health_report+0x66c/0xb20 net/devlink/health.c:680
 nsim_dev_health_break_write+0x166/0x210 drivers/net/netdevsim/health.c:162
 full_proxy_write+0x135/0x1a0 fs/debugfs/file.c:388
 vfs_write+0x2aa/0x1070 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:740
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efce219ce59
RSP: 002b:00007fff955a0a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007efce2415fa0 RCX: 00007efce219ce59
RDX: 00000000000001e1 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007efce2232d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efce2415fac R14: 00007efce2415fa0 R15: 00007efce2415fa0
 </TASK>
INFO: task syz.0.3282:9322 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.3282      state:D stack:27696 pid:9322  tgid:9322  ppid:8741   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 rwsem_down_read_slowpath+0x5af/0xb40 kernel/locking/rwsem.c:1114
 __down_read_common kernel/locking/rwsem.c:1291 [inline]
 __down_read kernel/locking/rwsem.c:1304 [inline]
 down_read+0xed/0x450 kernel/locking/rwsem.c:1570
 inode_lock_shared include/linux/fs.h:1044 [inline]
 open_last_lookups fs/namei.c:4610 [inline]
 path_openat+0xa16/0x31a0 fs/namei.c:4855
 do_file_open+0x20e/0x430 fs/namei.c:4887
 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5354f9ce59
RSP: 002b:00007ffe2cb7afb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5355215fa0 RCX: 00007f5354f9ce59
RDX: 0000000000048081 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007f5355032d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5355215fac R14: 00007f5355215fa0 R15: 00007f5355215fa0
 </TASK>
INFO: task syz.3.3283:9323 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3283      state:D stack:27800 pid:9323  tgid:9323  ppid:5805   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 rwsem_down_read_slowpath+0x5af/0xb40 kernel/locking/rwsem.c:1114
 __down_read_common kernel/locking/rwsem.c:1291 [inline]
 __down_read kernel/locking/rwsem.c:1304 [inline]
 down_read+0xed/0x450 kernel/locking/rwsem.c:1570
 inode_lock_shared include/linux/fs.h:1044 [inline]
 open_last_lookups fs/namei.c:4610 [inline]
 path_openat+0xa16/0x31a0 fs/namei.c:4855
 do_file_open+0x20e/0x430 fs/namei.c:4887
 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc82d59ce59
RSP: 002b:00007fff8fd15088 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc82d815fa0 RCX: 00007fc82d59ce59
RDX: 0000000000048081 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007fc82d632d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc82d815fac R14: 00007fc82d815fa0 R15: 00007fc82d815fa0
 </TASK>

Showing all locks held in the system:
6 locks held by kworker/u8:1/13:
 #0: ffff88801c6a6140 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12d6/0x1980 kernel/workqueue.c:3289
 #1: ffffc90000127d08 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x973/0x1980 kernel/workqueue.c:3290
 #2: ffffffff905edf08 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xb8/0x920 net/core/net_namespace.c:673
 #3: ffff888079592128 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
 #3: ffff888079592128 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:124 [inline]
 #3: ffff888079592128 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x19e/0x370 net/devlink/core.c:557
 #4: ffff888079591258 (&devlink->lock_key#4){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:292 [inline]
 #4: ffff888079591258 (&devlink->lock_key#4){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:125 [inline]
 #4: ffff888079591258 (&devlink->lock_key#4){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x1b4/0x370 net/devlink/core.c:557
 #5: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#9/2){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1074 [inline]
 #5: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#9/2){+.+.}-{4:4}, at: __simple_recursive_removal+0xe0/0x5c0 fs/libfs.c:620
1 lock held by khungtaskd/30:
 #0: ffffffff8e7e5360 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 #0: ffffffff8e7e5360 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
 #0: ffffffff8e7e5360 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x3d/0x184 kernel/locking/lockdep.c:6775
2 locks held by getty/5390:
 #0: ffff8880374e60a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x419/0x14f0 drivers/tty/n_tty.c:2211
5 locks held by syz-executor/9277:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88805bcdf880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
 #4: ffff888079592128 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
 #4: ffff888079592128 (&dev->mutex){....}-{4:4}, at: device_del+0xa0/0x9b0 drivers/base/core.c:3857
2 locks held by syz.1.3257/9291:
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888079591258 (&devlink->lock_key#4){+.+.}-{4:4}, at: devlink_health_report+0x66c/0xb20 net/devlink/health.c:680
2 locks held by syz.0.3282/9322:
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:4600 [inline]
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: path_openat+0x9b1/0x31a0 fs/namei.c:4855
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1044 [inline]
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: open_last_lookups fs/namei.c:4610 [inline]
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: path_openat+0xa16/0x31a0 fs/namei.c:4855
2 locks held by syz.3.3283/9323:
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:4600 [inline]
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: path_openat+0x9b1/0x31a0 fs/namei.c:4855
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1044 [inline]
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: open_last_lookups fs/namei.c:4610 [inline]
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: path_openat+0xa16/0x31a0 fs/namei.c:4855
4 locks held by syz-executor/9340:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888058e2a080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9360:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888025fb5080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9362:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88807b1dc080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9405:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88807ed45880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9425:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888072393880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9445:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff8880330aa080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9447:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88802a724080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9489:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88805b95dc80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9510:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888056b53c80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9530:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88807a1c0480 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9532:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88807368cc80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x12d/0x151 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x1d7/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x141/0x190 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0xcb1/0x1030 kernel/hung_task.c:561
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 57 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:cond_mitigation arch/x86/mm/tlb.c:670 [inline]
RIP: 0010:switch_mm_irqs_off+0xcc/0x7a0 arch/x86/mm/tlb.c:907
Code: 84 79 02 00 00 48 85 db 0f 84 86 00 00 00 4c 8d b3 c0 05 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 00 <0f> 85 28 06 00 00 48 8b ab c0 05 00 00 48 85 ed 74 58 48 b8 00 00
RSP: 0018:ffffc900015e78a0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88801c7f3e00 RCX: 000000013fe76000
RDX: 1ffff110038fe878 RSI: 0000000000000000 RDI: ffff88813fe76000
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1027fd02f8
R10: ffff88813fe817c7 R11: 0000000000000000 R12: ffff88813fe80c40
R13: 0000000000000000 R14: ffff88801c7f43c0 R15: ffffffff8e9b8080
FS:  0000000000000000(0000) GS:ffff88812438e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005571176c0d08 CR3: 000000013fe76000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 unuse_temporary_mm+0xbe/0x160 arch/x86/mm/tlb.c:1035
 __text_poke+0x5eb/0xae0 arch/x86/kernel/alternative.c:2629
 smp_text_poke_batch_finish+0x57d/0xc60 arch/x86/kernel/alternative.c:3005
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x37a/0x550 kernel/jump_label.c:910
 static_key_disable_cpuslocked+0x162/0x1c0 kernel/jump_label.c:240
 static_key_disable+0x1a/0x20 kernel/jump_label.c:248
 toggle_allocation_gate mm/kfence/core.c:913 [inline]
 toggle_allocation_gate+0x149/0x2d0 mm/kfence/core.c:898
 process_one_work+0xa0e/0x1980 kernel/workqueue.c:3314
 process_scheduled_works kernel/workqueue.c:3397 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3478
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

final repro crashed as (corrupted=false):
INFO: task kworker/u8:1:13 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:1    state:D stack:24576 pid:13    tgid:13    ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_timeout+0x1b2/0x280 kernel/time/sleep_timeout.c:75
 do_wait_for_common kernel/sched/completion.c:100 [inline]
 __wait_for_common+0x2e7/0x4c0 kernel/sched/completion.c:121
 __debugfs_file_removed fs/debugfs/inode.c:751 [inline]
 remove_one+0x312/0x420 fs/debugfs/inode.c:758
 __simple_recursive_removal+0x148/0x5c0 fs/libfs.c:624
 debugfs_remove+0x5d/0x80 fs/debugfs/inode.c:781
 nsim_dev_health_exit+0x3b/0xe0 drivers/net/netdevsim/health.c:227
 nsim_dev_reload_destroy+0x144/0x4a0 drivers/net/netdevsim/dev.c:1788
 nsim_dev_reload_down+0x66/0xd0 drivers/net/netdevsim/dev.c:1038
 devlink_reload+0x1ae/0x7a0 net/devlink/dev.c:462
 devlink_pernet_pre_exit+0x247/0x370 net/devlink/core.c:560
 ops_pre_exit_list net/core/net_namespace.c:161 [inline]
 ops_undo_list+0x187/0xab0 net/core/net_namespace.c:234
 cleanup_net+0x499/0x920 net/core/net_namespace.c:702
 process_one_work+0xa0e/0x1980 kernel/workqueue.c:3314
 process_scheduled_works kernel/workqueue.c:3397 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3478
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task syz-executor:9277 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:23976 pid:9277  tgid:9277  ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0xced/0x1b10 kernel/locking/mutex.c:820
 device_lock include/linux/device.h:1040 [inline]
 device_del+0xa0/0x9b0 drivers/base/core.c:3857
 device_unregister+0x1d/0xe0 drivers/base/core.c:3936
 nsim_bus_dev_del drivers/net/netdevsim/bus.c:491 [inline]
 del_device_store+0x346/0x480 drivers/net/netdevsim/bus.c:244
 bus_attr_store+0x74/0xb0 drivers/base/bus.c:172
 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:142
 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:352
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x6ac/0x1070 fs/read_write.c:688
 ksys_write+0x12a/0x250 fs/read_write.c:740
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcdc2d5d68e
RSP: 002b:00007ffd5a0fb698 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555568291500 RCX: 00007fcdc2d5d68e
RDX: 0000000000000001 RSI: 00007ffd5a0fb720 RDI: 0000000000000005
RBP: 00007fcdc2e335f2 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd5a0fb720 R14: 00007fcdc3b44620 R15: 0000000000000003
 </TASK>
INFO: task syz.1.3257:9291 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.3257      state:D stack:28456 pid:9291  tgid:9291  ppid:8214   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0xced/0x1b10 kernel/locking/mutex.c:820
 devlink_health_report+0x66c/0xb20 net/devlink/health.c:680
 nsim_dev_health_break_write+0x166/0x210 drivers/net/netdevsim/health.c:162
 full_proxy_write+0x135/0x1a0 fs/debugfs/file.c:388
 vfs_write+0x2aa/0x1070 fs/read_write.c:686
 ksys_write+0x12a/0x250 fs/read_write.c:740
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efce219ce59
RSP: 002b:00007fff955a0a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007efce2415fa0 RCX: 00007efce219ce59
RDX: 00000000000001e1 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007efce2232d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efce2415fac R14: 00007efce2415fa0 R15: 00007efce2415fa0
 </TASK>
INFO: task syz.0.3282:9322 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.3282      state:D stack:27696 pid:9322  tgid:9322  ppid:8741   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 rwsem_down_read_slowpath+0x5af/0xb40 kernel/locking/rwsem.c:1114
 __down_read_common kernel/locking/rwsem.c:1291 [inline]
 __down_read kernel/locking/rwsem.c:1304 [inline]
 down_read+0xed/0x450 kernel/locking/rwsem.c:1570
 inode_lock_shared include/linux/fs.h:1044 [inline]
 open_last_lookups fs/namei.c:4610 [inline]
 path_openat+0xa16/0x31a0 fs/namei.c:4855
 do_file_open+0x20e/0x430 fs/namei.c:4887
 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5354f9ce59
RSP: 002b:00007ffe2cb7afb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5355215fa0 RCX: 00007f5354f9ce59
RDX: 0000000000048081 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007f5355032d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5355215fac R14: 00007f5355215fa0 R15: 00007f5355215fa0
 </TASK>
INFO: task syz.3.3283:9323 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.3283      state:D stack:27800 pid:9323  tgid:9323  ppid:5805   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1295/0x67a0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7340
 rwsem_down_read_slowpath+0x5af/0xb40 kernel/locking/rwsem.c:1114
 __down_read_common kernel/locking/rwsem.c:1291 [inline]
 __down_read kernel/locking/rwsem.c:1304 [inline]
 down_read+0xed/0x450 kernel/locking/rwsem.c:1570
 inode_lock_shared include/linux/fs.h:1044 [inline]
 open_last_lookups fs/namei.c:4610 [inline]
 path_openat+0xa16/0x31a0 fs/namei.c:4855
 do_file_open+0x20e/0x430 fs/namei.c:4887
 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x12d/0x210 fs/open.c:1381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc82d59ce59
RSP: 002b:00007fff8fd15088 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc82d815fa0 RCX: 00007fc82d59ce59
RDX: 0000000000048081 RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007fc82d632d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc82d815fac R14: 00007fc82d815fa0 R15: 00007fc82d815fa0
 </TASK>

Showing all locks held in the system:
6 locks held by kworker/u8:1/13:
 #0: ffff88801c6a6140 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x12d6/0x1980 kernel/workqueue.c:3289
 #1: ffffc90000127d08 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x973/0x1980 kernel/workqueue.c:3290
 #2: ffffffff905edf08 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xb8/0x920 net/core/net_namespace.c:673
 #3: ffff888079592128 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
 #3: ffff888079592128 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:124 [inline]
 #3: ffff888079592128 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x19e/0x370 net/devlink/core.c:557
 #4: ffff888079591258 (&devlink->lock_key#4){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:292 [inline]
 #4: ffff888079591258 (&devlink->lock_key#4){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:125 [inline]
 #4: ffff888079591258 (&devlink->lock_key#4){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x1b4/0x370 net/devlink/core.c:557
 #5: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#9/2){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1074 [inline]
 #5: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#9/2){+.+.}-{4:4}, at: __simple_recursive_removal+0xe0/0x5c0 fs/libfs.c:620
1 lock held by khungtaskd/30:
 #0: ffffffff8e7e5360 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 #0: ffffffff8e7e5360 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
 #0: ffffffff8e7e5360 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x3d/0x184 kernel/locking/lockdep.c:6775
2 locks held by getty/5390:
 #0: ffff8880374e60a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x419/0x14f0 drivers/tty/n_tty.c:2211
5 locks held by syz-executor/9277:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88805bcdf880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
 #4: ffff888079592128 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1040 [inline]
 #4: ffff888079592128 (&dev->mutex){....}-{4:4}, at: device_del+0xa0/0x9b0 drivers/base/core.c:3857
2 locks held by syz.1.3257/9291:
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888079591258 (&devlink->lock_key#4){+.+.}-{4:4}, at: devlink_health_report+0x66c/0xb20 net/devlink/health.c:680
2 locks held by syz.0.3282/9322:
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:4600 [inline]
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: path_openat+0x9b1/0x31a0 fs/namei.c:4855
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1044 [inline]
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: open_last_lookups fs/namei.c:4610 [inline]
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: path_openat+0xa16/0x31a0 fs/namei.c:4855
2 locks held by syz.3.3283/9323:
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:4600 [inline]
 #0: ffff88801fee4410 (sb_writers#8){.+.+}-{0:0}, at: path_openat+0x9b1/0x31a0 fs/namei.c:4855
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: inode_lock_shared include/linux/fs.h:1044 [inline]
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: open_last_lookups fs/namei.c:4610 [inline]
 #1: ffff88805b2bcfb0 (&sb->s_type->i_mutex_key#17){++++}-{4:4}, at: path_openat+0xa16/0x31a0 fs/namei.c:4855
4 locks held by syz-executor/9340:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888058e2a080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9360:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888025fb5080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9362:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88807b1dc080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9405:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88807ed45880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9425:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888072393880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9445:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff8880330aa080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9447:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88802a724080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9489:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88805b95dc80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9510:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff888056b53c80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9530:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88807a1c0480 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234
4 locks held by syz-executor/9532:
 #0: ffff888037402410 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:740
 #1: ffff88807368cc80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:343
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline]
 #2: ffff88802acb75a8 (kn->active#58){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:344
 #3: ffffffff8fb87a80 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x480 drivers/net/netdevsim/bus.c:234

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x12d/0x151 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x1d7/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x141/0x190 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0xcb1/0x1030 kernel/hung_task.c:561
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 57 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:cond_mitigation arch/x86/mm/tlb.c:670 [inline]
RIP: 0010:switch_mm_irqs_off+0xcc/0x7a0 arch/x86/mm/tlb.c:907
Code: 84 79 02 00 00 48 85 db 0f 84 86 00 00 00 4c 8d b3 c0 05 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 00 <0f> 85 28 06 00 00 48 8b ab c0 05 00 00 48 85 ed 74 58 48 b8 00 00
RSP: 0018:ffffc900015e78a0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88801c7f3e00 RCX: 000000013fe76000
RDX: 1ffff110038fe878 RSI: 0000000000000000 RDI: ffff88813fe76000
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1027fd02f8
R10: ffff88813fe817c7 R11: 0000000000000000 R12: ffff88813fe80c40
R13: 0000000000000000 R14: ffff88801c7f43c0 R15: ffffffff8e9b8080
FS:  0000000000000000(0000) GS:ffff88812438e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005571176c0d08 CR3: 000000013fe76000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 unuse_temporary_mm+0xbe/0x160 arch/x86/mm/tlb.c:1035
 __text_poke+0x5eb/0xae0 arch/x86/kernel/alternative.c:2629
 smp_text_poke_batch_finish+0x57d/0xc60 arch/x86/kernel/alternative.c:3005
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x37a/0x550 kernel/jump_label.c:910
 static_key_disable_cpuslocked+0x162/0x1c0 kernel/jump_label.c:240
 static_key_disable+0x1a/0x20 kernel/jump_label.c:248
 toggle_allocation_gate mm/kfence/core.c:913 [inline]
 toggle_allocation_gate+0x149/0x2d0 mm/kfence/core.c:898
 process_one_work+0xa0e/0x1980 kernel/workqueue.c:3314
 process_scheduled_works kernel/workqueue.c:3397 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3478
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>