Extracting prog: 32m24.585304466s Minimizing prog: 33m40.877831192s Simplifying prog options: 0s Extracting C: 1m18.899744457s Simplifying C: 1h2m21.415466457s 36 programs, timeouts [6m0s] extracting reproducer from 36 programs testing a last program of every proc single: executing 6 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dir-symlinkat-syz_genetlink_get_family_id$nl80211-socket$inet6-prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-sched_setaffinity-syz_open_dev$MSR-read$msr-sendmmsg$inet-get_robust_list-close_range-socket$nl_netfilter-sendmsg$IPCTNL_MSG_CT_GET_STATS_CPU-sendmsg$IPCTNL_MSG_CT_GET_DYING detailed listing: executing program 0: r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000032680)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x408882, 0x13) symlinkat(&(0x7f000001ff80)='./file0\x00', r0, 0x0) syz_genetlink_get_family_id$nl80211(0x0, 0xffffffffffffffff) socket$inet6(0xa, 0x3, 0x5) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f0000000040)=0x400100bce) r1 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0) read$msr(r1, &(0x7f0000019680)=""/102392, 0x18ff8) sendmmsg$inet(0xffffffffffffffff, 0x0, 0x0, 0xf00) get_robust_list(0x0, &(0x7f0000000280)=&(0x7f0000000240), 0x0) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) r2 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPCTNL_MSG_CT_GET_STATS_CPU(r2, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000080)={0x0}, 0x1, 0x0, 0x0, 0x4008009}, 0x0) sendmsg$IPCTNL_MSG_CT_GET_DYING(0xffffffffffffffff, &(0x7f00000006c0)={0x0, 0x0, &(0x7f0000000680)={&(0x7f0000000640)={0x14, 0x6, 0x1, 0x9e91dd09233669f1}, 0x14}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prctl$PR_SET_TAGGED_ADDR_CTRL-getpid-prlimit64-sched_setscheduler-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-mount-tgkill-sendmsg$TIPC_CMD_SHOW_NAME_TABLE-socket$inet6_mptcp-openat$fb0-socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-socketpair-ioctl$ifreq_SIOCGIFINDEX_batadv_hard-sendmsg$BATADV_CMD_GET_NEIGHBORS-read$fb-openat$uhid-syz_open_dev$vcsa-writev-ioctl$SIOCPNDELRESOURCE-write$UHID_CREATE2 detailed listing: executing program 0: prctl$PR_SET_TAGGED_ADDR_CTRL(0x37, 0x1) r0 = getpid() prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7) sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4) mount(0x0, 0x0, 0x0, 0x0, 0x0) tgkill(0x0, r0, 0x9) sendmsg$TIPC_CMD_SHOW_NAME_TABLE(0xffffffffffffffff, 0x0, 0x0) socket$inet6_mptcp(0xa, 0x1, 0x106) r3 = openat$fb0(0xffffffffffffff9c, &(0x7f00000004c0), 0x0, 0x0) r4 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff) ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r4, 0x8933, &(0x7f0000000140)) socketpair(0x1, 0x100000005, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r5, 0x8933, &(0x7f0000000700)={'batadv_slave_1\x00'}) sendmsg$BATADV_CMD_GET_NEIGHBORS(r4, &(0x7f0000004340)={0x0, 0x0, &(0x7f0000000280)={0x0}}, 0x0) read$fb(r3, 0x0, 0x0) r6 = openat$uhid(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) r7 = syz_open_dev$vcsa(&(0x7f0000000040), 0x1, 0x2) writev(r7, &(0x7f00000008c0)=[{&(0x7f00000005c0)="647c8c047faf63cc87546889ea31f7e20b96f11b3f9ad036cebdce8f6523b32a3c19862108a6b7d6093b8ca9863670b59f6f6fb6ec0d3aa5a36c97715b87d0bd6e15d61838", 0x45}, {&(0x7f0000000380)}, {&(0x7f00000006c0)="8d", 0x1}], 0x3) ioctl$SIOCPNDELRESOURCE(r7, 0x89ef, &(0x7f0000000000)=0x8) write$UHID_CREATE2(r6, &(0x7f0000000100)=ANY=[@ANYBLOB="0b00000073790101000000000000000000000000000af7f4f0c55de8ca0000000000000000000000000000000000000000f3c800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000073797a3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000073797a3100"/221], 0x138) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$pidfd-fchdir-mlockall-syz_clone-setsockopt$inet6_tcp_buf-mremap-mount detailed listing: executing program 0: r0 = openat$pidfd(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0) fchdir(r0) mlockall(0x1) syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0) setsockopt$inet6_tcp_buf(0xffffffffffffffff, 0x6, 0x3d, &(0x7f00000004c0)="90cbdb3e87", 0x5) mremap(&(0x7f0000ff5000/0x2000)=nil, 0x2000, 0x5000000, 0x3, &(0x7f0000ffd000/0x1000)=nil) mount(0x0, &(0x7f0000000240)='./cgroup/file0\x00', 0x0, 0x2040008, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bpf$MAP_CREATE-bpf$MAP_UPDATE_ELEM_TAIL_CALL-bpf$PROG_LOAD-bpf$BPF_RAW_TRACEPOINT_OPEN-syz_clone detailed listing: executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000180)=@base={0xb, 0x7, 0x10001, 0x9, 0x1}, 0x48) bpf$MAP_UPDATE_ELEM_TAIL_CALL(0x2, &(0x7f0000000000)={{r0, 0xffffffffffffffff}, &(0x7f0000000580), &(0x7f00000005c0)}, 0x20) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x11, 0xd, &(0x7f0000000680)=@framed={{}, [@ringbuf_output={{0x18, 0x1, 0x1, 0x0, r1}, {}, {}, {}, {}, {}, {}, {0x85, 0x0, 0x0, 0x3}}, @call={0x85, 0x0, 0x0, 0xe}]}, &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000001c0)={&(0x7f0000000180)='kfree\x00', r2}, 0x10) syz_clone(0x42164000, 0x0, 0x0, 0x0, 0x0, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect$cdc_ncm-syz_usb_connect$hid-syz_usb_disconnect-syz_usb_connect detailed listing: executing program 0: r0 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000080)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0xd5}}]}}, 0x0) syz_usb_connect$cdc_ncm(0x0, 0x0, 0x0, &(0x7f0000000200)={0x0, 0x0, 0x13, &(0x7f00000000c0)={0x5, 0xf, 0x13, 0x2, [@ext_cap={0x7}, @ext_cap={0x7}]}}) syz_usb_connect$hid(0x0, 0x0, 0x0, 0x0) syz_usb_disconnect(r0) syz_usb_connect(0x0, 0x24, &(0x7f0000000440)={{0x12, 0x1, 0x0, 0x4c, 0x99, 0x14, 0x40, 0xbda, 0x8179, 0x594f, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff}}]}}]}}, 0x0) program crashed: INFO: rcu detected stall in corrupted single: successfully extracted reproducer found reproducer with 5 syscalls minimizing guilty program testing program (duration=7m0.920460954s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect$cdc_ncm-syz_usb_connect$hid-syz_usb_disconnect detailed listing: executing program 0: r0 = syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000080)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0xd5}}]}}, 0x0) syz_usb_connect$cdc_ncm(0x0, 0x0, 0x0, &(0x7f0000000200)={0x0, 0x0, 0x13, &(0x7f00000000c0)={0x5, 0xf, 0x13, 0x2, [@ext_cap={0x7}, @ext_cap={0x7}]}}) syz_usb_connect$hid(0x0, 0x0, 0x0, 0x0) syz_usb_disconnect(r0) program did not crash testing program (duration=7m0.920460954s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect$cdc_ncm-syz_usb_connect$hid-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000080)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0xd5}}]}}, 0x0) syz_usb_connect$cdc_ncm(0x0, 0x0, 0x0, &(0x7f0000000200)={0x0, 0x0, 0x13, &(0x7f00000000c0)={0x5, 0xf, 0x13, 0x2, [@ext_cap={0x7}, @ext_cap={0x7}]}}) syz_usb_connect$hid(0x0, 0x0, 0x0, 0x0) syz_usb_connect(0x0, 0x24, &(0x7f0000000440)={{0x12, 0x1, 0x0, 0x4c, 0x99, 0x14, 0x40, 0xbda, 0x8179, 0x594f, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff}}]}}]}}, 0x0) program crashed: INFO: rcu detected stall in x64_sys_call testing program (duration=7m0.920460954s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect$cdc_ncm-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000080)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0xd5}}]}}, 0x0) syz_usb_connect$cdc_ncm(0x0, 0x0, 0x0, &(0x7f0000000200)={0x0, 0x0, 0x13, &(0x7f00000000c0)={0x5, 0xf, 0x13, 0x2, [@ext_cap={0x7}, @ext_cap={0x7}]}}) syz_usb_connect(0x0, 0x24, &(0x7f0000000440)={{0x12, 0x1, 0x0, 0x4c, 0x99, 0x14, 0x40, 0xbda, 0x8179, 0x594f, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff}}]}}]}}, 0x0) program crashed: INFO: rcu detected stall in sys_openat testing program (duration=7m0.920460954s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000080)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0xd5}}]}}, 0x0) syz_usb_connect(0x0, 0x24, &(0x7f0000000440)={{0x12, 0x1, 0x0, 0x4c, 0x99, 0x14, 0x40, 0xbda, 0x8179, 0x594f, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff}}]}}]}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=7m0.920460954s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x0, 0x24, &(0x7f0000000440)={{0x12, 0x1, 0x0, 0x4c, 0x99, 0x14, 0x40, 0xbda, 0x8179, 0x594f, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff}}]}}]}}, 0x0) program did not crash testing program (duration=7m0.920460954s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x0, 0x0, 0x0) syz_usb_connect(0x0, 0x24, &(0x7f0000000440)={{0x12, 0x1, 0x0, 0x4c, 0x99, 0x14, 0x40, 0xbda, 0x8179, 0x594f, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff}}]}}]}}, 0x0) program did not crash testing program (duration=7m0.920460954s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000080)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0xd5}}]}}, 0x0) syz_usb_connect(0x0, 0x0, 0x0, 0x0) program crashed: INFO: rcu detected stall in corrupted extracting C reproducer testing compiled C program (duration=7m0.920460954s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in corrupted simplifying C reproducer testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=7m0.920460954s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in mac80211_hwsim_beacon a never seen crash title: INFO: rcu detected stall in mac80211_hwsim_beacon, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: task hung in kernfs_dop_revalidate a never seen crash title: INFO: task hung in kernfs_dop_revalidate, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in worker_thread a never seen crash title: INFO: rcu detected stall in worker_thread, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: task hung in ath9k_hif_usb_firmware_cb a never seen crash title: INFO: task hung in ath9k_hif_usb_firmware_cb, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in mac80211_hwsim_beacon a never seen crash title: INFO: rcu detected stall in mac80211_hwsim_beacon, ignore testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in corrupted reproducing took 2h9m45.778362578s repro crashed as (corrupted=true): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9/2:b..l rcu: (detected by 0, t=10502 jiffies, g=8649, q=1095 ncpus=2) task:kworker/0:1 state:R running task stack:22096 pid:9 tgid:9 ppid:2 flags:0x00004000 Workqueue: mld mld_ifc_work Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __local_bh_enable_ip+0x179/0x200 kernel/softirq.c:389 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:908 [inline] __dev_queue_xmit+0x1763/0x3e90 net/core/dev.c:4450 neigh_output include/net/neighbour.h:542 [inline] ip6_finish_output2+0x1003/0x1730 net/ipv6/ip6_output.c:141 ip6_finish_output+0x41e/0x810 net/ipv6/ip6_output.c:226 NF_HOOK+0x9e/0x430 include/linux/netfilter.h:314 mld_sendpack+0x843/0xdb0 net/ipv6/mcast.c:1818 mld_send_cr net/ipv6/mcast.c:2119 [inline] mld_ifc_work+0x7d9/0xd90 net/ipv6/mcast.c:2650 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 report is corrupted, running repro again testing compiled C program (duration=7m0.920460954s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect_ath9k-syz_usb_connect program crashed: INFO: rcu detected stall in ieee80211_handle_queued_frames final repro crashed as (corrupted=false): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5329/1:b..l P25/1:b..l P4668/1:b..l rcu: (detected by 0, t=10502 jiffies, g=9045, q=1541 ncpus=2) task:klogd state:R running task stack:23536 pid:4668 tgid:4668 ppid:1 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 unwind_next_frame+0x2124/0x2a00 arch/x86/kernel/unwind_orc.c:672 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x430 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1094 [inline] free_unref_page+0xd22/0xea0 mm/page_alloc.c:2612 discard_slab mm/slub.c:2583 [inline] __put_partials+0xeb/0x130 mm/slub.c:3051 put_cpu_partial+0x17c/0x250 mm/slub.c:3126 __slab_free+0x2ea/0x3d0 mm/slub.c:4343 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3988 [inline] slab_alloc_node mm/slub.c:4037 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4080 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:664 alloc_skb include/linux/skbuff.h:1320 [inline] alloc_skb_with_frags+0xc3/0x770 net/core/skbuff.c:6526 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2815 unix_dgram_sendmsg+0x6d3/0x1f80 net/unix/af_unix.c:2030 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x223/0x270 net/socket.c:745 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2212 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5333f549b5 RSP: 002b:00007ffe06625c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5333f549b5 RDX: 0000000000000054 RSI: 000055c0464932a0 RDI: 0000000000000003 RBP: 000055c04648e910 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013 R13: 00007f53340e2212 R14: 00007ffe06625d78 R15: 0000000000000000 task:kworker/1:0 state:R running task stack:24952 pid:25 tgid:25 ppid:2 flags:0x00004000 Workqueue: events nsim_fib_event_work Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 unwind_next_frame+0x2124/0x2a00 arch/x86/kernel/unwind_orc.c:672 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x430 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1094 [inline] free_unref_page+0xd22/0xea0 mm/page_alloc.c:2612 discard_slab mm/slub.c:2583 [inline] __put_partials+0xeb/0x130 mm/slub.c:3051 put_cpu_partial+0x17c/0x250 mm/slub.c:3126 __slab_free+0x2ea/0x3d0 mm/slub.c:4343 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3988 [inline] slab_alloc_node mm/slub.c:4037 [inline] __kmalloc_cache_noprof+0x132/0x2c0 mm/slub.c:4184 kmalloc_noprof include/linux/slab.h:681 [inline] kzalloc_noprof include/linux/slab.h:807 [inline] nsim_fib6_rt_create drivers/net/netdevsim/fib.c:547 [inline] nsim_fib6_rt_insert drivers/net/netdevsim/fib.c:752 [inline] nsim_fib6_event drivers/net/netdevsim/fib.c:856 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:889 [inline] nsim_fib_event_work+0x19c5/0x4130 drivers/net/netdevsim/fib.c:1492 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 task:syz-executor189 state:R running task stack:26576 pid:5329 tgid:5329 ppid:5251 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1688 [inline] zap_pmd_range mm/memory.c:1736 [inline] zap_pud_range mm/memory.c:1765 [inline] zap_p4d_range mm/memory.c:1786 [inline] unmap_page_range+0x3818/0x42c0 mm/memory.c:1807 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897 exit_mmap+0x264/0xc80 mm/mmap.c:3412 __mmput+0x115/0x390 kernel/fork.c:1345 exit_mm+0x220/0x310 kernel/exit.c:571 do_exit+0x9b2/0x27f0 kernel/exit.c:869 do_group_exit+0x207/0x2c0 kernel/exit.c:1031 get_signal+0x16a1/0x1740 kernel/signal.c:2917 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3bd4e63d0b RSP: 002b:00007ffeff8d8b30 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffffc RBX: 00007ffeff8d9c20 RCX: 00007f3bd4e63d0b RDX: 00007ffeff8d9c20 RSI: 0000000080085502 RDI: 0000000000000003 RBP: 0000000080085502 R08: 00007f3bd4ed93ec R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000800000000 R13: 00007ffeff8d8c18 R14: 00007f3bd4e248a0 R15: 0000000000000003 rcu: rcu_preempt kthread starved for 8177 jiffies! g9045 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:25656 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 23 Comm: migration/1 Not tainted 6.11.0-rc6-syzkaller-00019-g67784a74e258 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Stopper: 0x0 <- 0x0 RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x514/0x2a00 arch/x86/kernel/unwind_orc.c:494 Code: c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 34 48 63 2b 48 01 dd 48 89 ef 4c 89 f6 e8 b0 62 52 00 48 8d 43 04 <4c> 39 f5 4c 0f 46 e8 48 8d 43 fc 4c 0f 47 e0 4c 0f 46 fb 4d 39 e5 RSP: 0018:ffffc90000a16c28 EFLAGS: 00000006 RAX: ffffffff908e41cc RBX: ffffffff908e41c8 RCX: ffff88801d2f5a00 RDX: ffff88801d2f5a00 RSI: ffffffff8b254ba6 RDI: ffffffff8b254308 RBP: ffffffff8b254308 R08: ffffffff81412c60 R09: ffffc90000a16df0 R10: 0000000000000003 R11: ffffffff817f2f80 R12: ffffffff908e41c8 R13: ffffffff908e41c8 R14: ffffffff8b254ba6 R15: ffffffff908e41c8 FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055df59201010 CR3: 000000002e69e000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __kmalloc_cache_noprof+0x19c/0x2c0 mm/slub.c:4189 kmalloc_noprof include/linux/slab.h:681 [inline] dummy_urb_enqueue+0x7d/0x760 drivers/usb/gadget/udc/dummy_hcd.c:1271 usb_hcd_submit_urb+0x36e/0x1e80 drivers/usb/core/hcd.c:1533 ath9k_hif_usb_reg_in_cb+0x472/0x650 drivers/net/wireless/ath/ath9k/hif_usb.c:792 __usb_hcd_giveback_urb+0x42e/0x6e0 drivers/usb/core/hcd.c:1650 dummy_timer+0x830/0x45a0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x112/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_get_return_address+0x7/0xc0 arch/x86/kernel/unwind_orc.c:365 Code: 8b 74 24 14 e9 dd fe ff ff e8 25 74 78 0a 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 <41> 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df e8 04 67 52 00 48 RSP: 0018:ffffc90000a17ac8 EFLAGS: 00000246 RAX: ffffffff8137868f RBX: ffffffff8b2f87b2 RCX: ffff88801d2f5a00 RDX: 0000000000000100 RSI: 0000000080000302 RDI: ffffc90000a17ae0 RBP: ffffc90000a17b70 R08: ffffffff814145c5 R09: ffffffff814140bf R10: 0000000000000003 R11: ffff88801d2f5a00 R12: ffff88801d2f5a00 R13: ffffffff817f2f80 R14: ffffc90000a17bc0 R15: ffffc90000a17ae0 arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2252 [inline] slab_free mm/slub.c:4473 [inline] kfree+0x149/0x360 mm/slub.c:4594 ieee80211_inform_bss+0xbb2/0x1080 net/mac80211/scan.c:160 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline] cfg80211_inform_single_bss_data+0xe95/0x2030 net/wireless/scan.c:2335 cfg80211_inform_bss_data+0x3dd/0x5a70 net/wireless/scan.c:3159 cfg80211_inform_bss_frame_data+0x3b8/0x720 net/wireless/scan.c:3254 ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x526/0x9c0 net/mac80211/scan.c:340 __ieee80211_rx_handle_packet net/mac80211/rx.c:5225 [inline] ieee80211_rx_list+0x2b02/0x3780 net/mac80211/rx.c:5462 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485 ieee80211_rx include/net/mac80211.h:5124 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439 tasklet_action_common+0x323/0x4d0 kernel/softirq.c:785 handle_softirqs+0x2c6/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5062 Code: c9 50 e8 d9 b6 0b 00 48 83 c4 08 4c 89 f7 e8 7d 38 00 00 0f 1f 44 00 00 4c 89 f7 e8 a0 a3 5f 0a e8 ab db 36 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc RSP: 0018:ffffc900001d7ba8 EFLAGS: 00000286 RAX: c4c3a66fc77b1d00 RBX: ffff88801d2f5a00 RCX: ffffffff9a33b903 RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: ffffffff8c608d40 RBP: ffffc900001d7bf0 R08: ffffffff90186f2f R09: 1ffffffff2030de5 R10: dffffc0000000000 R11: fffffbfff2030de6 R12: 1ffff11017127eeb R13: dffffc0000000000 R14: ffff8880b893e9c0 R15: ffff8880b893f758 context_switch kernel/sched/core.c:5191 [inline] __schedule+0x1808/0x4a60 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 smpboot_thread_fn+0x61e/0xa30 kernel/smpboot.c:160 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244