last executing test programs: 43.668625243s ago: executing program 0 (id=170): socket$nl_generic(0x10, 0x3, 0x10) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7) fsconfig$FSCONFIG_SET_STRING(0xffffffffffffffff, 0x1, 0x0, 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, 0x0, &(0x7f00000003c0), 0x0) fsconfig$FSCONFIG_SET_STRING(0xffffffffffffffff, 0x1, &(0x7f0000000340)='\xf5\xfc\xd2\xec]\x95zx8*\xa2d\x11\xb5\xb1\xa4y\x9e>\xe49{\x8a{\x81s\xea$\xdfg\xb1\x03DY!\x97\xadM\xd7\xff\x8a\xcd[>\x12e\xc3]d8\xba\x8ec\x00\x00\x00\x00\x00\x00\x00\xa0\xe2\xd5y\xec\x90\x00\x98Y\x91\x19\x16\x89\xd0\x1a\x8dr\xd5\xcd\xf2P\r.\"\x03\xa9\xab\xfa#\x01\xcd\x05\xd0\xc6\xb9\xeb\x95\xd3\x9cl\x9cu#\xb4\xee\xe5\x9d\t\fV\xd4\xda\xfc`2?\x15P\xba\x14b\x1c\xcc\xd5\xb9\x01\x00\x00\x00\xb9g3\x15M\xd9\xb9 \xca[\xc7\xec\xa9;\xee\x01\xc9\xc4\x1f\xc3\xe4\xfa\xd3fU\x0e\x86\xc8\xa7\xaf\xaf\x04p\xa3\x8bb\xbf\\\xdb\x83\x00\x96sy\x14\x1eo\xcc9&\x946\xf9\xf5v\xee\xb5m$;\x01\xb8\xeau\x00\xd1S=\x920H\xc2z\xb5\xbe\x95\xef\xeb\xd1\xc8\xa1\xba[h\xbef\xa8\x86\xc2\x18\x9cC\x15\x9c^\xcf\xe9\xbcp\xb4Ff\x00\xb3\x00\x00\x00\x00\x00\x00\x00~\xae\xdb\a59f\xb8?\xba\xf2\x8e\xa5y\\\x1a\x80=\xa72)\xd2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9aZ\x1c\x12Y)\x1e1x\xa1\x87]y\x89>\xc6WO\xae\x95\xdd\xc7Q.\xbf^\xd9\x9d\xe2\a\x01\xb3\x05\xf9\"\xa6h\x8d\xcd\xc5\xf8\x91\x90\x173I\x94\x06\xb9\xe8\xc2\xdd\xc0RI\xda\x8f8\xf9\xd2\x93\xd65@\x1d-B\n\xfb\x92\xfd\xa1j\x8e\xea\xe8\x03\xc3\r\x06', 0x0, 0x0) tkill(0x0, 0x0) sched_setscheduler(0x0, 0x1, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$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) r3 = socket(0x10, 0x3, 0x0) syz_genetlink_get_family_id$ethtool(0x0, 0xffffffffffffffff) arch_prctl$ARCH_REQ_XCOMP_GUEST_PERM(0x1023, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r3, 0x8933, &(0x7f00000001c0)={'batadv_slave_1\x00'}) sendmsg$ETHTOOL_MSG_LINKINFO_GET(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x4008032, 0xffffffffffffffff, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f00000000c0)={0x12, 0x1f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0xf}, 0x90) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x0, 0x803, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000001c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x60}}, 0x0) creat(&(0x7f0000000000)='./file0\x00', 0x0) 42.695865198s ago: executing program 0 (id=171): r0 = userfaultfd(0x801) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)) syz_emit_vhci(&(0x7f0000000280)=ANY=[@ANYBLOB="02c8200a00d3000504010502000600"], 0xf) r1 = socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$devlink(&(0x7f0000000040), 0xffffffffffffffff) syz_usb_connect(0x0, 0x24, &(0x7f00000000c0)={{0x12, 0x1, 0x0, 0xe8, 0x6b, 0x33, 0x40, 0x93b, 0xa102, 0x1, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x0, 0x29, 0xf0, 0x1f}}]}}]}}, 0x0) sendmsg$DEVLINK_CMD_SB_PORT_POOL_GET(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000580)=ANY=[@ANYBLOB="b829764d", @ANYRES16=r0, @ANYBLOB="02000000000000000000130000000e0001006e657464657673696d0000000f0002006e657464657673696d300000080003000100000008000b000000000006001100000000000e0001006e657464657673696d0000000f0002006e657464657673696d300000080003000100000008000b00500f00000600110003000000080001007063690011000200303030303a30303a31302e3000000000080003000200000008000b00000000000600110003000000"], 0xb8}, 0x1, 0x0, 0x0, 0x20008800}, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f0000000040)=0x10001) r2 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) preadv(r2, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r3 = socket$inet6(0xa, 0x0, 0x0) bind$inet6(r3, &(0x7f0000000000)={0xa, 0x2, 0x0, @local}, 0x1c) socket(0x2, 0x2, 0x0) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x2e, &(0x7f0000000100)={0x1, &(0x7f0000000440)=[{0x8, 0x0, 0x3}]}) r4 = socket$netlink(0x10, 0x3, 0x8) syz_genetlink_get_family_id$batadv(&(0x7f00000002c0), r4) r5 = openat$vicodec0(0xffffffffffffff9c, &(0x7f0000000000), 0x2, 0x0) r6 = socket$netlink(0x10, 0x3, 0x4) capset(&(0x7f0000000000)={0x19980330}, &(0x7f0000000080)) writev(r6, &(0x7f0000000300)=[{&(0x7f0000000340)="580000001400192340834b80040d8c560a117436c379000000000000000058000b4824ca945f6400940f6a0325010ebc000000000000008000f0fffeffe809005300fff5dd000000100001000b0c100000000000224e0000", 0x58}], 0x1) fsopen(&(0x7f00000003c0)='ncpfs\x00', 0x1) ioctl$VIDIOC_S_STD(r5, 0x40085618, &(0x7f00000017c0)=0x8000) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x2) socket$rxrpc(0x21, 0x2, 0xa) r7 = syz_open_procfs(0x0, &(0x7f0000000480)='net/icmp6\x00') mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000400)='./cgroup.net/syz1\x00', 0x1ff) ioctl$sock_inet_SIOCADDRT(r7, 0x890b, &(0x7f0000000300)={0x0, {0x2, 0x4e24, @loopback}, {0x2, 0x4e22, @remote}, {0x2, 0x4e20, @empty}, 0xa, 0x0, 0x0, 0x0, 0xfff7, &(0x7f0000000180), 0x3800000, 0x3, 0x3}) preadv(r7, &(0x7f0000000080)=[{&(0x7f00000001c0)=""/133, 0x85}], 0x1, 0xa3, 0x0) 37.427251798s ago: executing program 0 (id=179): socket$nl_generic(0x10, 0x3, 0x10) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7) fsconfig$FSCONFIG_SET_STRING(0xffffffffffffffff, 0x1, 0x0, 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0) fsconfig$FSCONFIG_SET_BINARY(0xffffffffffffffff, 0x2, 0x0, &(0x7f00000003c0), 0x0) fsconfig$FSCONFIG_SET_STRING(0xffffffffffffffff, 0x1, &(0x7f0000000340)='\xf5\xfc\xd2\xec]\x95zx8*\xa2d\x11\xb5\xb1\xa4y\x9e>\xe49{\x8a{\x81s\xea$\xdfg\xb1\x03DY!\x97\xadM\xd7\xff\x8a\xcd[>\x12e\xc3]d8\xba\x8ec\x00\x00\x00\x00\x00\x00\x00\xa0\xe2\xd5y\xec\x90\x00\x98Y\x91\x19\x16\x89\xd0\x1a\x8dr\xd5\xcd\xf2P\r.\"\x03\xa9\xab\xfa#\x01\xcd\x05\xd0\xc6\xb9\xeb\x95\xd3\x9cl\x9cu#\xb4\xee\xe5\x9d\t\fV\xd4\xda\xfc`2?\x15P\xba\x14b\x1c\xcc\xd5\xb9\x01\x00\x00\x00\xb9g3\x15M\xd9\xb9 \xca[\xc7\xec\xa9;\xee\x01\xc9\xc4\x1f\xc3\xe4\xfa\xd3fU\x0e\x86\xc8\xa7\xaf\xaf\x04p\xa3\x8bb\xbf\\\xdb\x83\x00\x96sy\x14\x1eo\xcc9&\x946\xf9\xf5v\xee\xb5m$;\x01\xb8\xeau\x00\xd1S=\x920H\xc2z\xb5\xbe\x95\xef\xeb\xd1\xc8\xa1\xba[h\xbef\xa8\x86\xc2\x18\x9cC\x15\x9c^\xcf\xe9\xbcp\xb4Ff\x00\xb3\x00\x00\x00\x00\x00\x00\x00~\xae\xdb\a59f\xb8?\xba\xf2\x8e\xa5y\\\x1a\x80=\xa72)\xd2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9aZ\x1c\x12Y)\x1e1x\xa1\x87]y\x89>\xc6WO\xae\x95\xdd\xc7Q.\xbf^\xd9\x9d\xe2\a\x01\xb3\x05\xf9\"\xa6h\x8d\xcd\xc5\xf8\x91\x90\x173I\x94\x06\xb9\xe8\xc2\xdd\xc0RI\xda\x8f8\xf9\xd2\x93\xd65@\x1d-B\n\xfb\x92\xfd\xa1j\x8e\xea\xe8\x03\xc3\r\x06', 0x0, 0x0) tkill(0x0, 0x0) sched_setscheduler(0x0, 0x1, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4) r3 = socket(0x10, 0x3, 0x0) syz_genetlink_get_family_id$ethtool(0x0, 0xffffffffffffffff) arch_prctl$ARCH_REQ_XCOMP_GUEST_PERM(0x1023, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r3, 0x8933, &(0x7f00000001c0)={'batadv_slave_1\x00'}) sendmsg$ETHTOOL_MSG_LINKINFO_GET(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x4008032, 0xffffffffffffffff, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f00000000c0)={0x12, 0x1f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0xf}, 0x90) r4 = socket$nl_route(0x10, 0x3, 0x0) r5 = socket(0x0, 0x803, 0x0) getsockname$packet(r5, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f00000001c0)=0x14) sendmsg$nl_route(r4, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={0x0, 0x60}}, 0x0) creat(&(0x7f0000000000)='./file0\x00', 0x0) 36.47739467s ago: executing program 0 (id=180): prctl$PR_SCHED_CORE(0x3e, 0x0, 0x0, 0x2, 0x0) r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0) preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) write$binfmt_elf32(0xffffffffffffffff, 0x0, 0x82) mknod(&(0x7f0000000200)='./file0\x00', 0x8001420, 0x0) r1 = open(&(0x7f0000000140)='./file0\x00', 0x2, 0x0) write$FUSE_IOCTL(r1, &(0x7f0000000100)={0x20}, 0xfdef) socket$nl_netfilter(0x10, 0x3, 0xc) r2 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f0000000000)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0x0, 0x7fff0000}]}) close_range(r2, 0xffffffffffffffff, 0x0) 34.856466253s ago: executing program 0 (id=183): creat(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4) socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@file={0x0, './file0\x00'}, 0x6e) sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) prctl$PR_SET_IO_FLUSHER(0x39, 0x1) bpf$MAP_CREATE(0x0, &(0x7f0000000840)=@base={0xa, 0x101, 0x7fff, 0xcc}, 0x48) 33.759263503s ago: executing program 0 (id=187): socket$netlink(0x10, 0x3, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000280)={0x26, 'skcipher\x00', 0x0, 0x0, 'ecb(cipher_null)\x00'}, 0x58) r1 = accept4(r0, 0x0, 0x0, 0x0) recvmmsg(r1, &(0x7f00000005c0)=[{{0x0, 0xfffffffffffffea3, 0x0}}], 0x3ffffffffffff62, 0x0, 0x0) readv(r1, &(0x7f0000000300)=[{&(0x7f0000000000)=""/154, 0x9a}], 0x1) sendmsg$ETHTOOL_MSG_DEBUG_SET(r1, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000240)={0x0}}, 0x24048050) 14.480846114s ago: executing program 1 (id=229): r0 = creat(&(0x7f0000000000)='./bus\x00', 0x0) r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) r2 = ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0) ioctl$KVM_IOEVENTFD(0xffffffffffffffff, 0x4040ae79, &(0x7f0000000100)={0x0, 0x0, 0x4, r0}) r3 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000340)='cpuset.memory_pressure\x00', 0x275a, 0x0) syz_emit_ethernet(0x36, &(0x7f0000000100)=ANY=[@ANYBLOB="000002f0d31209000000bc2e79e995"], 0x0) write$binfmt_script(r3, &(0x7f0000000100), 0x208e24b) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r3, 0x0) preadv(r3, &(0x7f00000015c0)=[{&(0x7f0000000080)=""/124, 0xffffff23}], 0x3e, 0x0, 0x0) syz_emit_ethernet(0x4a, &(0x7f0000000000)=ANY=[@ANYRES32=0x41424344], 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r2, 0x4020ae46, &(0x7f0000000400)={0x0, 0x0, 0x0, 0x20002000, &(0x7f0000000000/0x2000)=nil}) openat$binderfs_ctrl(0xffffffffffffff9c, &(0x7f0000000140)='./binderfs2/binder-control\x00', 0x0, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000180)={0x0, 0x0, 0x0, &(0x7f0000000080)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2}, 0x90) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000327000/0x18000)=nil, &(0x7f0000000040)=[@text16={0x10, &(0x7f0000000180)="66b9800000c00f326635000800000f300f0f1c9a65660ff3b20618baa000ec672e660f38803d004000000f285473f61366b9800000c00f326635004000000f300f20e06635800000000f22e0f30fa6c8", 0x50}], 0x1, 0x0, 0x0, 0x0) r4 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r4, &(0x7f0000000000/0x18000)=nil, &(0x7f00000004c0)=[@text32={0x20, 0x0}], 0x1, 0x0, 0x0, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f0000000180)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000002540)=""/211, 0xd3}}], 0x1, 0x0, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000000)={0x0}, 0x10) ioctl$KVM_RUN(r4, 0xae80, 0x0) 13.730893781s ago: executing program 1 (id=232): r0 = socket$inet_smc(0x2b, 0x1, 0x0) setsockopt$IP_VS_SO_SET_ADD(r0, 0x0, 0x482, &(0x7f0000000000)={0x6, @loopback, 0x0, 0x3, 'lblcr\x00'}, 0x2c) r1 = socket$inet_smc(0x2b, 0x1, 0x0) setsockopt$IP_VS_SO_SET_ADD(r1, 0x0, 0x48f, &(0x7f0000000000)={0x6, @multicast1, 0x0, 0x0, 'dh\x00'}, 0x2c) 13.493568084s ago: executing program 1 (id=234): syz_mount_image$f2fs(&(0x7f0000000040), &(0x7f0000000240)='./bus\x00', 0x0, &(0x7f0000000540)=ANY=[@ANYBLOB="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"], 0x1, 0x54f4, &(0x7f0000005600)="$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pipe2$9p(0x0, 0x0) r0 = creat(&(0x7f0000000100)='./bus\x00', 0x0) write$P9_RVERSION(0xffffffffffffffff, &(0x7f0000000500)=ANY=[], 0x15) splice(0xffffffffffffffff, 0x0, r0, 0x0, 0x12, 0x0) 12.080230953s ago: executing program 4 (id=238): socket$inet_icmp_raw(0x2, 0x3, 0x1) socket$igmp6(0xa, 0x3, 0x2) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0) socket(0x840000000002, 0x3, 0x100) io_uring_setup(0x30d3, &(0x7f0000000000)) r0 = syz_io_uring_setup(0x94c, &(0x7f0000000240)={0x0, 0x0, 0x10100}, &(0x7f0000000100)=0x0, &(0x7f0000000140)=0x0) r3 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0) socket$nl_xfrm(0x10, 0x3, 0x6) syz_io_uring_submit(0x0, 0x0, &(0x7f00000001c0)=@IORING_OP_TEE={0x21, 0x0, 0x0, @fd_index}) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000001c0)) write$UHID_CREATE2(0xffffffffffffffff, &(0x7f00000001c0)=ANY=[], 0x118) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x5, 0x12, r3, 0x0) syz_io_uring_submit(r1, r2, &(0x7f0000000000)=@IORING_OP_RECVMSG={0xa, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}) io_uring_enter(r0, 0x2d3e, 0x0, 0x0, 0x0, 0x0) 11.823469327s ago: executing program 4 (id=239): prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) mkdir(&(0x7f0000002200)='./file0\x00', 0x0) r0 = socket$inet6_udp(0xa, 0x2, 0x0) sendto$inet6(r0, &(0x7f0000000700)="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", 0xfe, 0x4004046, &(0x7f00000002c0)={0xa, 0x4e23, 0x5, @mcast2, 0x8}, 0x1c) mount$cgroup(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x0, &(0x7f0000000280)={[{@noprefix}, {@subsystem='cpuacct'}]}) syz_emit_vhci(&(0x7f0000000180)=ANY=[@ANYBLOB="05c9"], 0x11) r1 = getpid() r2 = socket$inet6_sctp(0xa, 0x1, 0x84) sendto$inet6(r2, &(0x7f0000000340), 0x0, 0x0, &(0x7f0000000080)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @broadcast}}, 0x1c) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x11, 0xc, &(0x7f0000000800)=ANY=[@ANYBLOB="18010000000000000000000000000000850000006d0000001801000020696c2500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000008000000b703000000000000850000007000000095"], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000004c0)={&(0x7f0000000240)='xdp_exception\x00', r3}, 0x10) process_vm_readv(r1, &(0x7f0000000500)=[{&(0x7f0000000300)=""/54, 0x36}, {&(0x7f0000006180)=""/152, 0x98}], 0x1, &(0x7f0000000380)=[{&(0x7f0000008480)=""/95, 0x5f}, {&(0x7f0000000140)=""/60, 0xfffffffffffffd15}], 0x2, 0x0) r4 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000100), 0x0) ioctl$SNDRV_SEQ_IOCTL_SET_PORT_INFO(0xffffffffffffffff, 0xc0a85320, &(0x7f00000003c0)={{0x80}, 'port1\x00', 0xe3, 0x131867, 0xffffffff, 0x0, 0x1, 0x0, 0xfffffff2}) r5 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r5, 0x1, r4, &(0x7f0000000000)) openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r6 = bpf$MAP_CREATE(0x0, &(0x7f00000000c0)=@base={0x0, 0x0, 0x0, 0x8000}, 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x4, 0xd, &(0x7f0000000ac0)=ANY=[@ANYBLOB="18020000eeff180000f2ffffff00000085000000610003007b7bb7e5e80a96fed2807064f75aa6d5f54e2ee6d38b57e8d2c26c45e1757fbf7aa8c2e01a0475e8a435ac0aa3f424c29ace0602c9a759b821417cd82f8956281ea741c1a705711ad93ac52683aa7aeee57eed7f4c03eb5888baf33feb575cf1b924ed590c846a438fdd1bee0059897895d810d819449ec76c1653d8e91209c1896e8d583c4e9a9652403f7b39759d670cf72185e83106735d80b88193d7cd", @ANYBLOB="b571803b91f3b46ad87af8792a13d13e333f28b70db0dadf241a96d8cfeae0bf640402541a323e81505eb684decb6afb2ec5c574f7cd2e21c4271acccdf803b69041203a55f022ae3df17186c3f293ea917f2f2b68fab21f6e0a37cc0fa12aa37b654a3ee34c21cb2fb876db5e18af95b0e73eb362058942530f0753b6d60a15c80745ac4c8001d88647ad6e93de373f6fc5aaa7f3866bc27ab71117215aa2cf423cc7dec116d90f89f0dd83d9394d21447f97d7aa3ce444bc341dc74e5caaf14c37c832f801c10ba3aa2d8d40b33336a1283101fdfe071fd467a49ffa78dd36", @ANYRES32=r6], &(0x7f0000000080)='GPL\x00', 0x8000, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x200}, 0x90) r7 = socket$inet6(0xa, 0x2, 0x0) setsockopt$inet6_int(r7, 0x29, 0x33, &(0x7f0000000040)=0x200007b, 0x4) prctl$PR_SET_VMA(0x53564d41, 0x0, &(0x7f0000fc7000/0x2000)=nil, 0xfffffffffffff000, &(0x7f0000000840)='\x00XL\xc9\xe9+%\xf6\x83\x92D\xeb\xc4\xf6x\x86&q\f\x05\xf2N\x91\xf6\xa0\x8c\x06\xe3\xa7*\xcc\x1e\x96\x1e\x00\x00\x00 A\xe3\x0f<\x02\xe9>\xf2\xcb\xf1\x00\x00C4\x94\x01\x1a\xc9\"\xf6\x8aK\xc7]\xc9v#$*\x0f\xe2\x93\x84\xfa\x0f\x0e\x1c\xd4\x90\xc7\x1a_07\x85N\veX\xd7\r\xac\x1b\xeb&\x85\xef>\xe5\xd0Y\v\xd9\xcf\x19\x1c\xc2\x7f,\xb0\x98\xceR\xe7c^\xbd\xa7\xf8XjV\xe98\xd3[2\xfa?&:.\xd31\xf1\xdahg\x01\x01L\xb4\x84z\xf1\xfb\xaa8\x11\xc2\x00\x00\xcf<\xad*\x9f\xe8\r;\xf4Ak/Qn\xe7\xc5\x1dm\x8c\x1a\rV\xff\x1dy$\xc5\x1a\xe1\x9eP\x95\xcc@>a*$&<\x1d\xde\xde\xc3\xb5\x12\x88\x00JG{\x9aH\x96\xfd\x87\x9c)\xd7\x15_\v\xc3e\xc8r\b,A`\x1f~\xc5\x16S\x1a3|g\x8bCU\xd2!\x8c\xd6\x87\xc4\xa0\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\xea\x8c\xab\x96\x9co\xf2\x04\xe1\xad\xfd\xb0\x14\xc4\xa1\xf6h \x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\xb2\xaf%\xe2+\xde\xe3\x8d<\x00\x00\x16\x8f\xe5\xf3\xca\n\xfc\x8cZ\x1e\xb1=x\xdf\x1c\xb5\xda\xb0\x034\xee.\xd3\x04\xd4\xe8\xa5b[\t\x91\xb9AV;h\v@\x902\xc1\xb8R\xfar)cBCn\xeb*\'\x7f2\x81\xeb\xd7\t\xbe\xb8;\xa7\xb1{\x8c)\x87\\i\xd6\x03\x9e\xfc\xd4I\xc4\x14\xe2\xa0\xe2\x1f\x12\x1bPH\xbb$\xfa\x81\xc5\xfaE/\xd3\x8d\x89`\xe0\x1c\x19\xe4\xa4T\x9a\xa3o\x9b\xb0\x10l\xe2\xe3\xf2\x86/\xa6\xf8,\x1c\x16\x85\x84\xd8F[\xd2$w3\x0f\xdbqR\xa8\xdf(\xfb1\x86\xb2\xcd\xb2\xcd\xa6&Gr\xc0\x98\xcb\xb7\xdf\xcd\v\xb61\xcc\xd6Dou=\xadF\xb7\xbfR\xcd\xf3S\xba\xa3\xe7\x8f\xad\x02\xf9\xfd\x9b\xf7RE\xe3\x0e\xeb\xbf\x1cr\xb1\xfb\x9f)\x890\xb8c\b\xeb\xd2Q\xea\x80\xa7K\x03\x9f}\xb4\xe8\xb7J\xed\x8d\x03NwT\xab\xd6\xe7\xc3\xca\x96p\xa5\x14\xa7\xdb\xa7$\xe4\x1c^tk\xaaq\xb1\xfd\x14\xfe*u\\w \x0e\xf9\xee\x8eDd\x9d=\xfc\n\x8da\xa9\x15\xde\x8a\xe0.7gxvc\xcd\x97') ioctl$VHOST_RESET_OWNER(0xffffffffffffffff, 0xaf02, 0x0) syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="040e04"], 0x7) ioctl$UI_DEV_SETUP(0xffffffffffffffff, 0x405c5503, &(0x7f0000000440)={{0x8, 0x5, 0x513, 0x2}, 'syz1\x00', 0x4d}) syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853825b67c84a908adca22e7266dfd4f239a3abbb98f982f6e8d4d652b4cc9d5fdab730c023e7cf262d889069e79c3ea45584d799dfdd019bf9611c91a31edc45c2f064bf78d886991b3c7941edf04673356b94520592b962a1dab9fa4c3c9d49d87496c1ce44b6"], 0x22) r8 = socket$packet(0x11, 0x3, 0x300) socket$netlink(0x10, 0x3, 0x4) setsockopt$packet_int(r8, 0x107, 0x9, &(0x7f0000000000)=0x8, 0x4) 11.501551165s ago: executing program 4 (id=240): r0 = syz_open_dev$sndctrl(&(0x7f0000000100), 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(r0, 0xc0045516, &(0x7f00000000c0)=0x81) r1 = dup(0xffffffffffffffff) read$FUSE(r1, 0x0, 0x0) 11.308604725s ago: executing program 4 (id=241): syz_init_net_socket$nl_rdma(0x10, 0x3, 0x10) socket$nl_netfilter(0x10, 0x3, 0xc) prlimit64(0x0, 0xe, 0x0, 0x0) getpid() sched_setscheduler(0x0, 0x2, &(0x7f0000000100)=0x2) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x0, 0x0) ioctl$USBDEVFS_CLEAR_HALT(0xffffffffffffffff, 0x80045515, &(0x7f0000000180)) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r0, &(0x7f000057eff8)=@file={0x0, './file1\x00'}, 0x6e) sendmmsg$unix(r1, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r0, 0x0, 0x0, 0x2, 0x0) r2 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0) read$msr(r2, &(0x7f0000019680)=""/102392, 0x18ff8) bpf$PROG_LOAD(0x5, 0x0, 0x0) r3 = socket$can_j1939(0x1d, 0x2, 0x7) r4 = syz_genetlink_get_family_id$smc(&(0x7f0000000080), 0xffffffffffffffff) sendmsg$SMC_PNETID_DEL(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f00000021c0)=ANY=[@ANYBLOB=' \x00', @ANYRES16=r4, @ANYBLOB="01000000000000000000030202"], 0x20}, 0x1, 0x40030000000000}, 0x0) ioctl$ifreq_SIOCGIFINDEX_vcan(r3, 0x8933, &(0x7f0000000000)={'vcan0\x00', 0x0}) r6 = socket$can_j1939(0x1d, 0x2, 0x7) bind$can_j1939(r6, &(0x7f0000000080)={0x1d, r5}, 0x18) sendmsg$can_j1939(r6, &(0x7f00000001c0)={&(0x7f0000000040), 0x18, &(0x7f0000000180)={&(0x7f00000000c0)="92", 0x1a000}}, 0xee) 11.274525071s ago: executing program 1 (id=242): r0 = openat$vhost_vsock(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0) ioctl$VHOST_SET_VRING_BASE(r0, 0xaf01, 0x0) r1 = eventfd(0x0) ioctl$VHOST_SET_VRING_BASE(r0, 0x4008af12, &(0x7f0000000080)={0x1, 0x7f}) ioctl$VHOST_SET_LOG_FD(r0, 0x4004af07, &(0x7f0000000240)=r1) ioctl$VHOST_SET_VRING_KICK(r0, 0x4008af20, &(0x7f0000000040)={0x1, r1}) ioctl$VHOST_SET_VRING_ADDR(r0, 0x4028af11, &(0x7f0000000140)={0x0, 0x0, 0x0, &(0x7f0000000500)=""/67, 0x0}) ioctl$VHOST_SET_VRING_ADDR(r0, 0x4028af11, &(0x7f0000000280)={0x1, 0x1, &(0x7f0000000380)=""/247, &(0x7f00000000c0)=""/87, &(0x7f0000000480)=""/74}) ioctl$VHOST_SET_MEM_TABLE(r0, 0x4008af03, &(0x7f0000000680)={0x1, 0x0, [{0x0, 0xfffffeac, &(0x7f00000001c0)=""/115}]}) ioctl$VHOST_VSOCK_SET_RUNNING(r0, 0x4004af61, &(0x7f0000000000)=0x1) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000380)={&(0x7f00000006c0)=@gettaction={0x2c, 0x32, 0x0, 0x0, 0x0, {}, [@action_dump_flags=@TCA_ROOT_TIME_DELTA={0x8}, @action_dump_flags=@TCA_ROOT_FLAGS={0xc}, @action_gd=@TCA_ACT_TAB={0x4}]}, 0x2c}}, 0x0) bpf$MAP_CREATE(0x0, &(0x7f0000000000), 0x48) r2 = socket$inet6(0xa, 0x3, 0x7) setsockopt$inet6_IPV6_XFRM_POLICY(r2, 0x29, 0x23, &(0x7f0000000340)={{{@in6=@dev, @in6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x0, 0x0, 0x0, 0x0, 0xa}}, {{@in=@private, 0x0, 0x33}, 0x0, @in=@dev}}, 0xe8) setsockopt$inet6_IPV6_XFRM_POLICY(r2, 0x29, 0x23, 0x0, 0x0) r3 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) r4 = bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f00000013c0)={0x18, 0x3, &(0x7f0000000080)=@framed, &(0x7f0000000000)='syzkaller\x00'}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000005c0)={&(0x7f0000000600)='cachefiles_mkdir\x00', r4}, 0xfffffffffffffd93) socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_init_net_socket$ax25(0x3, 0x3, 0x0) r6 = dup2(r5, r3) ioctl$TIOCVHANGUP(r6, 0x89e3, 0x1000000000000) 10.32228939s ago: executing program 2 (id=244): ioctl$BINDER_WRITE_READ(0xffffffffffffffff, 0x40046207, 0x0) r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_MSRS(r2, 0x4188aea7, &(0x7f00000002c0)={0x2, 0x0, [{}, {0x2d1}]}) 9.965486532s ago: executing program 2 (id=245): prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f0000000040)=0x10001) r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0) preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) setsockopt$SO_ATTACH_FILTER(0xffffffffffffffff, 0x1, 0x1a, &(0x7f0000000140)={0x1, &(0x7f0000000280)=[{0x0, 0x0, 0x0, 0xe4}]}, 0x10) write$binfmt_elf32(0xffffffffffffffff, 0x0, 0x82) close(0xffffffffffffffff) execve(&(0x7f0000000180)='./file0\x00', 0x0, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) mknod(&(0x7f0000000200)='./file0\x00', 0x8001420, 0x0) open(&(0x7f0000000140)='./file0\x00', 0x2, 0x0) 7.214573925s ago: executing program 2 (id=247): r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_IRQCHIP(r1, 0x8208ae63, &(0x7f00000003c0)={0x1, 0x0, @pic={0x0, 0xfd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x8}}) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000200)={[], 0x0, 0x2c0710}) ioctl$KVM_RUN(r2, 0xae80, 0x0) 6.996378904s ago: executing program 3 (id=248): socket$inet_icmp_raw(0x2, 0x3, 0x1) socket$igmp6(0xa, 0x3, 0x2) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='cpuset.effective_cpus\x00', 0x275a, 0x0) socket(0x840000000002, 0x3, 0x100) io_uring_setup(0x30d3, &(0x7f0000000000)) r0 = syz_io_uring_setup(0x94c, &(0x7f0000000240)={0x0, 0x0, 0x10100}, &(0x7f0000000100)=0x0, &(0x7f0000000140)=0x0) r3 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000080)='cpu.stat\x00', 0x275a, 0x0) socket$nl_xfrm(0x10, 0x3, 0x6) syz_io_uring_submit(0x0, 0x0, &(0x7f00000001c0)=@IORING_OP_TEE={0x21, 0x0, 0x0, @fd_index}) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000001c0)) write$UHID_CREATE2(0xffffffffffffffff, &(0x7f00000001c0)=ANY=[], 0x118) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x5, 0x12, r3, 0x0) syz_io_uring_submit(r1, r2, &(0x7f0000000000)=@IORING_OP_RECVMSG={0xa, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}) io_uring_enter(r0, 0x2d3e, 0x0, 0x0, 0x0, 0x0) 5.733718749s ago: executing program 4 (id=249): prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) mkdir(&(0x7f0000002200)='./file0\x00', 0x0) r0 = socket$inet6_udp(0xa, 0x2, 0x0) sendto$inet6(r0, &(0x7f0000000700)="a86e9f434018b1d660cc4d4caae1409c81c8bde3b84c404981eefe8ba42c8e0527c7501e4da79febd8d884af89f31e5986b462a071382d4892bd3586ce23e7bbb5cbd083b207a63f21e0c51c5880af8cacea34e20a8e398af8b944ecac979bc8fb6cf65448f540ebfbd372c91e116d869480cc5f513bb4537318f38fed172675decd26e36c776e50d4815f15d77cdb7a9ad442fd78198596ef0e6b6b20b59d7afd2395e90fff92a8d2cdffb834ddf44a21c8e33962ae6c7fe3d5ce3ff314397b48d1fa00d0b72e0a7e965e8c40fd81a71bcd7310aca6d1979e5e6b7f01dad3b8b67a6b12c3333ddb7368329ce57b676d613e26d7eaf27c09d684ccb9ee93", 0xfe, 0x4004046, &(0x7f00000002c0)={0xa, 0x4e23, 0x5, @mcast2, 0x8}, 0x1c) mount$cgroup(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x0, &(0x7f0000000280)={[{@noprefix}, {@subsystem='cpuacct'}]}) syz_emit_vhci(&(0x7f0000000180)=ANY=[@ANYBLOB="05c9"], 0x11) r1 = getpid() r2 = socket$inet6_sctp(0xa, 0x1, 0x84) sendto$inet6(r2, &(0x7f0000000340)='b', 0x1, 0x0, 0x0, 0x0) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000880)={0x11, 0xc, &(0x7f0000000800)=ANY=[@ANYBLOB="18010000000000000000000000000000850000006d0000001801000020696c2500000000002020207b1af8ff00000000bfa100000000000007010000f8ffffffb702000008000000b703000000000000850000007000000095"], &(0x7f0000000000)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f00000004c0)={&(0x7f0000000240)='xdp_exception\x00', r3}, 0x10) process_vm_readv(r1, &(0x7f0000000500)=[{&(0x7f0000000300)=""/54, 0x36}, {&(0x7f0000006180)=""/152, 0x98}], 0x1, &(0x7f0000000380)=[{&(0x7f0000008480)=""/95, 0x5f}, {&(0x7f0000000140)=""/60, 0xfffffffffffffd15}], 0x2, 0x0) r4 = openat$sndseq(0xffffffffffffff9c, &(0x7f0000000100), 0x0) ioctl$SNDRV_SEQ_IOCTL_SET_PORT_INFO(0xffffffffffffffff, 0xc0a85320, &(0x7f00000003c0)={{0x80}, 'port1\x00', 0xe3, 0x131867, 0xffffffff, 0x0, 0x1, 0x0, 0xfffffff2}) r5 = epoll_create1(0x0) epoll_ctl$EPOLL_CTL_ADD(r5, 0x1, r4, &(0x7f0000000000)) openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r6 = bpf$MAP_CREATE(0x0, &(0x7f00000000c0)=@base={0x0, 0x0, 0x0, 0x8000}, 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x4, 0xd, &(0x7f0000000ac0)=ANY=[@ANYBLOB="18020000eeff180000f2ffffff00000085000000610003007b7bb7e5e80a96fed2807064f75aa6d5f54e2ee6d38b57e8d2c26c45e1757fbf7aa8c2e01a0475e8a435ac0aa3f424c29ace0602c9a759b821417cd82f8956281ea741c1a705711ad93ac52683aa7aeee57eed7f4c03eb5888baf33feb575cf1b924ed590c846a438fdd1bee0059897895d810d819449ec76c1653d8e91209c1896e8d583c4e9a9652403f7b39759d670cf72185e83106735d80b88193d7cd", @ANYBLOB="b571803b91f3b46ad87af8792a13d13e333f28b70db0dadf241a96d8cfeae0bf640402541a323e81505eb684decb6afb2ec5c574f7cd2e21c4271acccdf803b69041203a55f022ae3df17186c3f293ea917f2f2b68fab21f6e0a37cc0fa12aa37b654a3ee34c21cb2fb876db5e18af95b0e73eb362058942530f0753b6d60a15c80745ac4c8001d88647ad6e93de373f6fc5aaa7f3866bc27ab71117215aa2cf423cc7dec116d90f89f0dd83d9394d21447f97d7aa3ce444bc341dc74e5caaf14c37c832f801c10ba3aa2d8d40b33336a1283101fdfe071fd467a49ffa78dd36", @ANYRES32=r6], &(0x7f0000000080)='GPL\x00', 0x8000, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x200}, 0x90) r7 = socket$inet6(0xa, 0x2, 0x0) setsockopt$inet6_int(r7, 0x29, 0x33, &(0x7f0000000040)=0x200007b, 0x4) prctl$PR_SET_VMA(0x53564d41, 0x0, &(0x7f0000fc7000/0x2000)=nil, 0xfffffffffffff000, &(0x7f0000000840)='\x00XL\xc9\xe9+%\xf6\x83\x92D\xeb\xc4\xf6x\x86&q\f\x05\xf2N\x91\xf6\xa0\x8c\x06\xe3\xa7*\xcc\x1e\x96\x1e\x00\x00\x00 A\xe3\x0f<\x02\xe9>\xf2\xcb\xf1\x00\x00C4\x94\x01\x1a\xc9\"\xf6\x8aK\xc7]\xc9v#$*\x0f\xe2\x93\x84\xfa\x0f\x0e\x1c\xd4\x90\xc7\x1a_07\x85N\veX\xd7\r\xac\x1b\xeb&\x85\xef>\xe5\xd0Y\v\xd9\xcf\x19\x1c\xc2\x7f,\xb0\x98\xceR\xe7c^\xbd\xa7\xf8XjV\xe98\xd3[2\xfa?&:.\xd31\xf1\xdahg\x01\x01L\xb4\x84z\xf1\xfb\xaa8\x11\xc2\x00\x00\xcf<\xad*\x9f\xe8\r;\xf4Ak/Qn\xe7\xc5\x1dm\x8c\x1a\rV\xff\x1dy$\xc5\x1a\xe1\x9eP\x95\xcc@>a*$&<\x1d\xde\xde\xc3\xb5\x12\x88\x00JG{\x9aH\x96\xfd\x87\x9c)\xd7\x15_\v\xc3e\xc8r\b,A`\x1f~\xc5\x16S\x1a3|g\x8bCU\xd2!\x8c\xd6\x87\xc4\xa0\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\xea\x8c\xab\x96\x9co\xf2\x04\xe1\xad\xfd\xb0\x14\xc4\xa1\xf6h \x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\xb2\xaf%\xe2+\xde\xe3\x8d<\x00\x00\x16\x8f\xe5\xf3\xca\n\xfc\x8cZ\x1e\xb1=x\xdf\x1c\xb5\xda\xb0\x034\xee.\xd3\x04\xd4\xe8\xa5b[\t\x91\xb9AV;h\v@\x902\xc1\xb8R\xfar)cBCn\xeb*\'\x7f2\x81\xeb\xd7\t\xbe\xb8;\xa7\xb1{\x8c)\x87\\i\xd6\x03\x9e\xfc\xd4I\xc4\x14\xe2\xa0\xe2\x1f\x12\x1bPH\xbb$\xfa\x81\xc5\xfaE/\xd3\x8d\x89`\xe0\x1c\x19\xe4\xa4T\x9a\xa3o\x9b\xb0\x10l\xe2\xe3\xf2\x86/\xa6\xf8,\x1c\x16\x85\x84\xd8F[\xd2$w3\x0f\xdbqR\xa8\xdf(\xfb1\x86\xb2\xcd\xb2\xcd\xa6&Gr\xc0\x98\xcb\xb7\xdf\xcd\v\xb61\xcc\xd6Dou=\xadF\xb7\xbfR\xcd\xf3S\xba\xa3\xe7\x8f\xad\x02\xf9\xfd\x9b\xf7RE\xe3\x0e\xeb\xbf\x1cr\xb1\xfb\x9f)\x890\xb8c\b\xeb\xd2Q\xea\x80\xa7K\x03\x9f}\xb4\xe8\xb7J\xed\x8d\x03NwT\xab\xd6\xe7\xc3\xca\x96p\xa5\x14\xa7\xdb\xa7$\xe4\x1c^tk\xaaq\xb1\xfd\x14\xfe*u\\w \x0e\xf9\xee\x8eDd\x9d=\xfc\n\x8da\xa9\x15\xde\x8a\xe0.7gxvc\xcd\x97') ioctl$VHOST_RESET_OWNER(0xffffffffffffffff, 0xaf02, 0x0) syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="040e04"], 0x7) ioctl$UI_DEV_SETUP(0xffffffffffffffff, 0x405c5503, &(0x7f0000000440)={{0x8, 0x5, 0x513, 0x2}, 'syz1\x00', 0x4d}) syz_emit_vhci(&(0x7f0000000540)=ANY=[@ANYBLOB="043e1f0a0000050000000000fc00ff00d87a970000100010000037ab7d818c7880beaf95677040357bab7d7a05c1bb0aa6aebef67ce4b0c51100f43ed1ed9f97ec6a859d46f82853825b67c84a908adca22e7266dfd4f239a3abbb98f982f6e8d4d652b4cc9d5fdab730c023e7cf262d889069e79c3ea45584d799dfdd019bf9611c91a31edc45c2f064bf78d886991b3c7941edf04673356b94520592b962a1dab9fa4c3c9d49d87496c1ce44b6"], 0x22) r8 = socket$packet(0x11, 0x3, 0x300) socket$netlink(0x10, 0x3, 0x4) setsockopt$packet_int(r8, 0x107, 0x9, &(0x7f0000000000)=0x8, 0x4) 5.733357823s ago: executing program 3 (id=250): r0 = syz_open_dev$sndctrl(&(0x7f0000000100), 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS(r0, 0xc0045516, &(0x7f00000000c0)=0x81) r1 = dup(0xffffffffffffffff) read$FUSE(r1, 0x0, 0x0) 5.733118903s ago: executing program 3 (id=251): socket$inet6_sctp(0xa, 0x0, 0x84) r0 = io_uring_setup(0x2e35, &(0x7f0000000180)={0x0, 0x0, 0x0, 0x2, 0x400001e6}) fsopen(&(0x7f0000000040)='afs\x00', 0x0) socket$l2tp6(0xa, 0x2, 0x73) socket$xdp(0x2c, 0x3, 0x0) connect$can_bcm(0xffffffffffffffff, 0x0, 0x0) futex(0x0, 0x8, 0x0, &(0x7f0000000040)={0x77359400}, 0x0, 0x1) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f0000000040)=0x10001) r1 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0) preadv(r1, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) getpid() mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x200000f, 0x10, 0xffffffffffffffff, 0x0) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, 0x0, 0x0) syz_open_dev$tty1(0xc, 0x4, 0x1) r2 = syz_open_dev$usbfs(&(0x7f0000000100), 0x77, 0x0) ioctl$USBDEVFS_ALLOW_SUSPEND(r2, 0x5522) setsockopt$inet6_MCAST_LEAVE_GROUP(0xffffffffffffffff, 0x29, 0x3c, 0x0, 0x0) close_range(r0, 0xffffffffffffffff, 0x0) syz_open_dev$dri(&(0x7f0000000080), 0x1, 0x0) 5.599325069s ago: executing program 1 (id=252): r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$SO_ATTACH_FILTER(0xffffffffffffffff, 0x1, 0x1a, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x7) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, 0x0, 0x0) connect$unix(r2, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r3, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r2, &(0x7f00000000c0), 0x10106, 0x2, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4) keyctl$KEYCTL_WATCH_KEY(0x12, 0x0, 0xffffffffffffffff, 0x0) connect$inet(r0, &(0x7f0000000000)={0x2, 0x4e20, @local}, 0x10) sendmsg$inet(r0, &(0x7f00000015c0)={0x0, 0x0, &(0x7f0000000180)}, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(0xffffffffffffffff, 0x29, 0x20, &(0x7f0000000280)={@mcast2, 0x800, 0x3, 0x103, 0x0, 0x4001}, 0x20) sendmsg$inet6(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000080)={0xa, 0x0, 0x80000, @mcast1}, 0x22, 0x0, 0x0, &(0x7f0000000680)=ANY=[@ANYBLOB="1800000000000000290000000400000000000000000000001800800000000000290000003600000000b3a40000000000"], 0x30}, 0x0) recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x2, 0x0) r4 = ioctl$TUNGETDEVNETNS(0xffffffffffffffff, 0x54e3, 0x0) mmap(&(0x7f0000ffc000/0x1000)=nil, 0x1000, 0x1000000, 0x1010, r4, 0x0) 5.51387158s ago: executing program 2 (id=253): r0 = socket$inet_smc(0x2b, 0x1, 0x0) setsockopt$IP_VS_SO_SET_ADD(r0, 0x0, 0x482, &(0x7f0000000000)={0x6, @loopback, 0x0, 0x3, 'lblcr\x00'}, 0x2c) r1 = socket$inet_smc(0x2b, 0x1, 0x0) setsockopt$IP_VS_SO_SET_ADD(r1, 0x0, 0x48f, &(0x7f0000000000)={0x6, @multicast1, 0x0, 0x0, 'dh\x00'}, 0x2c) 5.494196949s ago: executing program 4 (id=254): socket$netlink(0x10, 0x3, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000000280)={0x26, 'skcipher\x00', 0x0, 0x0, 'ecb(cipher_null)\x00'}, 0x58) r1 = accept4(r0, 0x0, 0x0, 0x0) recvmmsg(r1, &(0x7f00000005c0)=[{{0x0, 0xfffffffffffffea3, 0x0}}], 0x3ffffffffffff62, 0x0, 0x0) readv(r1, &(0x7f0000000300)=[{&(0x7f0000000000)=""/154, 0x9a}], 0x1) sendmsg$ETHTOOL_MSG_DEBUG_SET(r1, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000240)={0x0}}, 0x24048050) 4.811885998s ago: executing program 2 (id=255): r0 = openat$vhost_vsock(0xffffffffffffff9c, &(0x7f0000000180), 0x2, 0x0) ioctl$VHOST_SET_VRING_BASE(r0, 0xaf01, 0x0) r1 = eventfd(0x0) ioctl$VHOST_SET_VRING_BASE(r0, 0x4008af12, &(0x7f0000000080)={0x1, 0x7f}) ioctl$VHOST_SET_LOG_FD(r0, 0x4004af07, &(0x7f0000000240)=r1) ioctl$VHOST_SET_VRING_KICK(r0, 0x4008af20, &(0x7f0000000040)={0x1, r1}) ioctl$VHOST_SET_VRING_ADDR(r0, 0x4028af11, &(0x7f0000000140)={0x0, 0x0, 0x0, &(0x7f0000000500)=""/67, 0x0}) ioctl$VHOST_SET_VRING_ADDR(r0, 0x4028af11, &(0x7f0000000280)={0x1, 0x1, &(0x7f0000000380)=""/247, &(0x7f00000000c0)=""/87, &(0x7f0000000480)=""/74}) ioctl$VHOST_SET_MEM_TABLE(r0, 0x4008af03, &(0x7f0000000680)={0x1, 0x0, [{0x0, 0xfffffeac, &(0x7f00000001c0)=""/115}]}) ioctl$VHOST_VSOCK_SET_RUNNING(r0, 0x4004af61, &(0x7f0000000000)=0x1) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000380)={&(0x7f00000006c0)=@gettaction={0x2c, 0x32, 0x0, 0x0, 0x0, {}, [@action_dump_flags=@TCA_ROOT_TIME_DELTA={0x8}, @action_dump_flags=@TCA_ROOT_FLAGS={0xc}, @action_gd=@TCA_ACT_TAB={0x4}]}, 0x2c}}, 0x0) bpf$MAP_CREATE(0x0, &(0x7f0000000000), 0x48) r2 = socket$inet6(0xa, 0x3, 0x7) setsockopt$inet6_IPV6_XFRM_POLICY(r2, 0x29, 0x23, &(0x7f0000000340)={{{@in6=@dev, @in6=@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x0, 0x0, 0x0, 0x0, 0xa}}, {{@in=@private, 0x0, 0x33}, 0x0, @in=@dev}}, 0xe8) setsockopt$inet6_IPV6_XFRM_POLICY(r2, 0x29, 0x23, 0x0, 0x0) r3 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) r4 = syz_init_net_socket$ax25(0x3, 0x3, 0x0) r5 = dup2(r4, r3) ioctl$TIOCVHANGUP(r5, 0x89e3, 0x1000000000000) 3.214797152s ago: executing program 1 (id=256): socket$qrtr(0x2a, 0x2, 0x0) openat$hwrng(0xffffffffffffff9c, 0x0, 0x0, 0x0) r0 = syz_open_dev$ndb(&(0x7f0000000000), 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) ioctl$NBD_SET_SOCK(r0, 0xab00, r1) r2 = syz_open_dev$ndb(&(0x7f00000000c0), 0x0, 0x0) ioctl$NBD_SET_FLAGS(r2, 0xab0a, 0x1000001000104) ioctl$NBD_SET_SOCK(r2, 0xab00, r1) ioctl$NBD_DO_IT(r0, 0xab03) socketpair$nbd(0x1, 0x1, 0x0, 0x0) ioctl$NBD_CLEAR_SOCK(0xffffffffffffffff, 0xab04) pipe2(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) splice(0xffffffffffffffff, 0x0, r3, 0x0, 0x0, 0x0) socket(0x1d, 0x2, 0x6) r4 = socket$inet6(0xa, 0x0, 0x0) setsockopt$inet6_int(r4, 0x29, 0x1000000000021, 0x0, 0x1000000) 3.120797129s ago: executing program 3 (id=257): open(0x0, 0x141042, 0x0) mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0) r0 = open(&(0x7f00000002c0)='./bus\x00', 0xec902, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f000000c380)='./file0\x00', 0x20842, 0x0) write$binfmt_elf64(r1, 0x0, 0xa78) splice(r1, 0x0, r0, 0x0, 0x600, 0x0) 2.928116461s ago: executing program 3 (id=258): creat(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000080)=0x7) r0 = getpid() sched_setscheduler(r0, 0x0, &(0x7f0000000200)=0x4) socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@file={0x0, './file0\x00'}, 0x6e) sendmmsg$unix(r2, &(0x7f00000bd000), 0x318, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) prctl$PR_SET_IO_FLUSHER(0x39, 0x1) bpf$MAP_CREATE(0x0, &(0x7f0000000840)=@base={0xa, 0x101, 0x7fff, 0xcc}, 0x48) 2.402542319s ago: executing program 2 (id=259): prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f00000000c0)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) connect$unix(0xffffffffffffffff, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000000), 0x651, 0x0) recvmmsg(0xffffffffffffffff, &(0x7f00000000c0), 0x10106, 0x2, 0x0) sched_setscheduler(0x0, 0x2, 0x0) clock_adjtime(0x0, &(0x7f0000000100)={0x5cb}) 0s ago: executing program 3 (id=260): prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f0000000040)=0x10001) r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0) preadv(r0, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) setsockopt$SO_ATTACH_FILTER(0xffffffffffffffff, 0x1, 0x1a, &(0x7f0000000140)={0x1, &(0x7f0000000280)=[{0x0, 0x0, 0x0, 0xe4}]}, 0x10) write$binfmt_elf32(0xffffffffffffffff, 0x0, 0x82) close(0xffffffffffffffff) execve(&(0x7f0000000180)='./file0\x00', 0x0, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) mknod(&(0x7f0000000200)='./file0\x00', 0x8001420, 0x0) open(&(0x7f0000000140)='./file0\x00', 0x2, 0x0) kernel console output (not intermixed with test programs): [ C1] Call Trace: [ 223.094132][ C1] [ 223.094151][ C1] __schedule+0x1800/0x4a60 [ 223.094197][ C1] ? __pfx___schedule+0x10/0x10 [ 223.094226][ C1] ? __pfx_lock_release+0x10/0x10 [ 223.094250][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 223.094278][ C1] ? kthread_data+0x52/0xd0 [ 223.094299][ C1] ? schedule+0x90/0x320 [ 223.094319][ C1] ? wq_worker_sleeping+0x66/0x240 [ 223.094343][ C1] ? schedule+0x90/0x320 [ 223.094363][ C1] schedule+0x14b/0x320 [ 223.094386][ C1] schedule_preempt_disabled+0x13/0x30 [ 223.094406][ C1] __mutex_lock+0x6a4/0xd70 [ 223.094428][ C1] ? mark_lock+0x9a/0x360 [ 223.094454][ C1] ? __mutex_lock+0x527/0xd70 [ 223.094480][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 223.094504][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 223.094539][ C1] ? get_rtnl_holder+0x144/0x190 [ 223.094561][ C1] addrconf_dad_work+0xd0/0x16f0 [ 223.094595][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 223.094618][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 223.094655][ C1] ? process_scheduled_works+0x945/0x1830 [ 223.094676][ C1] process_scheduled_works+0xa2c/0x1830 [ 223.094729][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 223.094761][ C1] ? assign_work+0x364/0x3d0 [ 223.094789][ C1] worker_thread+0x86d/0xd40 [ 223.094827][ C1] ? __kthread_parkme+0x169/0x1d0 [ 223.094854][ C1] ? __pfx_worker_thread+0x10/0x10 [ 223.094882][ C1] kthread+0x2f0/0x390 [ 223.094906][ C1] ? __pfx_worker_thread+0x10/0x10 [ 223.094927][ C1] ? __pfx_kthread+0x10/0x10 [ 223.094953][ C1] ret_from_fork+0x4b/0x80 [ 223.094975][ C1] ? __pfx_kthread+0x10/0x10 [ 223.095000][ C1] ret_from_fork_asm+0x1a/0x30 [ 223.095041][ C1] [ 223.095048][ C1] DEBUG: holding rtnl_mutex for 2642 jiffies. [ 223.095057][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 223.095086][ C1] Workqueue: netns cleanup_net [ 223.095104][ C1] Call Trace: [ 223.095111][ C1] [ 223.095123][ C1] __schedule+0x1800/0x4a60 [ 223.095169][ C1] ? __pfx___schedule+0x10/0x10 [ 223.095194][ C1] ? __pfx_lock_release+0x10/0x10 [ 223.095214][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 223.095246][ C1] ? kthread_data+0x52/0xd0 [ 223.095269][ C1] ? wq_worker_sleeping+0x66/0x240 [ 223.095293][ C1] ? schedule+0x90/0x320 [ 223.095313][ C1] schedule+0x14b/0x320 [ 223.095337][ C1] synchronize_rcu_expedited+0x684/0x830 [ 223.095368][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 223.095413][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 223.095440][ C1] ? __pfx___might_resched+0x10/0x10 [ 223.095459][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 223.095481][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 223.095505][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 223.095540][ C1] synchronize_rcu+0x11b/0x360 [ 223.095566][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 223.095607][ C1] lockdep_unregister_key+0x556/0x610 [ 223.095635][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 223.095662][ C1] ? rcu_is_watching+0x15/0xb0 [ 223.095687][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 223.095711][ C1] __qdisc_destroy+0x165/0x410 [ 223.095733][ C1] dev_shutdown+0x357/0x440 [ 223.095762][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 223.095809][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 223.095852][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 223.095883][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 223.095912][ C1] default_device_exit_batch+0xa0f/0xa90 [ 223.095951][ C1] ? __pfx___might_resched+0x10/0x10 [ 223.095972][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 223.096009][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 223.096032][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 223.096062][ C1] cleanup_net+0x89d/0xcc0 [ 223.096088][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 223.096120][ C1] ? process_scheduled_works+0x945/0x1830 [ 223.096140][ C1] process_scheduled_works+0xa2c/0x1830 [ 223.096194][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 223.096231][ C1] ? assign_work+0x364/0x3d0 [ 223.096258][ C1] worker_thread+0x86d/0xd40 [ 223.096290][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 223.096315][ C1] ? __kthread_parkme+0x169/0x1d0 [ 223.096343][ C1] ? __pfx_worker_thread+0x10/0x10 [ 223.096365][ C1] kthread+0x2f0/0x390 [ 223.096389][ C1] ? __pfx_worker_thread+0x10/0x10 [ 223.096410][ C1] ? __pfx_kthread+0x10/0x10 [ 223.096436][ C1] ret_from_fork+0x4b/0x80 [ 223.096458][ C1] ? __pfx_kthread+0x10/0x10 [ 223.096482][ C1] ret_from_fork_asm+0x1a/0x30 [ 223.096523][ C1] [ 223.096532][ C1] [ 223.096532][ C1] Showing all locks held in the system: [ 223.096547][ C1] 5 locks held by kworker/u8:3/52: [ 223.096563][ C1] 5 locks held by kworker/u8:5/143: [ 223.096573][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 223.096625][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 223.096673][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 223.096719][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 223.096772][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 223.096844][ C1] 3 locks held by kworker/u8:7/2422: [ 223.096854][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 223.096903][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 223.096953][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 223.097005][ C1] 3 locks held by kworker/u8:11/2871: [ 223.097018][ C1] 2 locks held by getty/4856: [ 223.097028][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 223.097080][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 223.097133][ C1] 3 locks held by kworker/1:3/5150: [ 223.097142][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 223.097191][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 223.097245][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 223.097298][ C1] 1 lock held by syz-executor/6328: [ 223.097308][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 223.097363][ C1] 3 locks held by syz.4.254/6503: [ 223.097373][ C1] 6 locks held by syz.1.256/6510: [ 223.097383][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 223.097428][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 223.097477][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 223.097528][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 223.097574][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 223.097618][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 223.097669][ C1] [ 223.097674][ C1] ============================================= [ 223.097674][ C1] [ 224.130326][ C1] DEBUG: waiting rtnl_mutex for 2751 jiffies. [ 224.130344][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 224.130378][ C1] Call Trace: [ 224.130386][ C1] [ 224.130400][ C1] __schedule+0x1800/0x4a60 [ 224.130461][ C1] ? __pfx___schedule+0x10/0x10 [ 224.130486][ C1] ? __pfx_lock_release+0x10/0x10 [ 224.130512][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 224.130551][ C1] ? schedule+0x90/0x320 [ 224.130572][ C1] schedule+0x14b/0x320 [ 224.130596][ C1] schedule_preempt_disabled+0x13/0x30 [ 224.130616][ C1] __mutex_lock+0x6a4/0xd70 [ 224.130645][ C1] ? __mutex_lock+0x527/0xd70 [ 224.130670][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 224.130698][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 224.130735][ C1] ? get_rtnl_holder+0x144/0x190 [ 224.130757][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 224.130788][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 224.130817][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 224.130841][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 224.130875][ C1] ? __pfx_validate_chain+0x10/0x10 [ 224.130902][ C1] ? __pfx_validate_chain+0x10/0x10 [ 224.130929][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 224.130959][ C1] ? mark_lock+0x9a/0x360 [ 224.130981][ C1] ? __pfx_validate_chain+0x10/0x10 [ 224.131010][ C1] ? __lock_acquire+0x1359/0x2000 [ 224.131049][ C1] ? mark_lock+0x9a/0x360 [ 224.131078][ C1] ? __lock_acquire+0x1359/0x2000 [ 224.131123][ C1] netlink_rcv_skb+0x1e3/0x430 [ 224.131152][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 224.131183][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 224.131235][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 224.131256][ C1] netlink_unicast+0x7f0/0x990 [ 224.131291][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 224.131313][ C1] ? __virt_addr_valid+0x183/0x530 [ 224.131343][ C1] ? __check_object_size+0x49c/0x900 [ 224.131365][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 224.131392][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 224.131429][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 224.131445][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 224.131470][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 224.131493][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 224.131516][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 224.131543][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 224.131560][ C1] __sock_sendmsg+0x221/0x270 [ 224.131590][ C1] __sys_sendto+0x3a4/0x4f0 [ 224.131617][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 224.131667][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 224.131693][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 224.131723][ C1] __x64_sys_sendto+0xde/0x100 [ 224.131747][ C1] do_syscall_64+0xf3/0x230 [ 224.131765][ C1] ? clear_bhb_loop+0x35/0x90 [ 224.131790][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 224.131811][ C1] RIP: 0033:0x7f87c977796c [ 224.131836][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 224.131855][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 224.131869][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 224.131881][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 224.131892][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 224.131903][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 224.131933][ C1] [ 224.131940][ C1] DEBUG: waiting rtnl_mutex for 2649 jiffies. [ 224.131950][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 224.131982][ C1] Workqueue: events linkwatch_event [ 224.132001][ C1] Call Trace: [ 224.132008][ C1] [ 224.132020][ C1] __schedule+0x1800/0x4a60 [ 224.132066][ C1] ? __pfx___schedule+0x10/0x10 [ 224.132088][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 224.132111][ C1] ? __pfx_lock_release+0x10/0x10 [ 224.132134][ C1] ? kick_pool+0x45c/0x620 [ 224.132165][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 224.132185][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 224.132210][ C1] ? schedule+0x90/0x320 [ 224.132230][ C1] schedule+0x14b/0x320 [ 224.132253][ C1] schedule_preempt_disabled+0x13/0x30 [ 224.132273][ C1] __mutex_lock+0x6a4/0xd70 [ 224.132302][ C1] ? __mutex_lock+0x527/0xd70 [ 224.132327][ C1] ? linkwatch_event+0xe/0x60 [ 224.132347][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 224.132382][ C1] ? get_rtnl_holder+0x144/0x190 [ 224.132402][ C1] ? process_scheduled_works+0x945/0x1830 [ 224.132430][ C1] linkwatch_event+0xe/0x60 [ 224.132448][ C1] process_scheduled_works+0xa2c/0x1830 [ 224.132501][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 224.132534][ C1] ? assign_work+0x364/0x3d0 [ 224.132562][ C1] worker_thread+0x86d/0xd40 [ 224.132594][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 224.132620][ C1] ? __kthread_parkme+0x169/0x1d0 [ 224.132647][ C1] ? __pfx_worker_thread+0x10/0x10 [ 224.132669][ C1] kthread+0x2f0/0x390 [ 224.132693][ C1] ? __pfx_worker_thread+0x10/0x10 [ 224.132714][ C1] ? __pfx_kthread+0x10/0x10 [ 224.132740][ C1] ret_from_fork+0x4b/0x80 [ 224.132763][ C1] ? __pfx_kthread+0x10/0x10 [ 224.132789][ C1] ret_from_fork_asm+0x1a/0x30 [ 224.132831][ C1] [ 224.132838][ C1] DEBUG: waiting rtnl_mutex for 2764 jiffies. [ 224.132848][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 224.132877][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 224.132899][ C1] Call Trace: [ 224.132906][ C1] [ 224.132918][ C1] __schedule+0x1800/0x4a60 [ 224.132964][ C1] ? __pfx___schedule+0x10/0x10 [ 224.132990][ C1] ? __pfx_lock_release+0x10/0x10 [ 224.133013][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 224.133041][ C1] ? kthread_data+0x52/0xd0 [ 224.133062][ C1] ? schedule+0x90/0x320 [ 224.133082][ C1] ? wq_worker_sleeping+0x66/0x240 [ 224.133107][ C1] ? schedule+0x90/0x320 [ 224.133126][ C1] schedule+0x14b/0x320 [ 224.133150][ C1] schedule_preempt_disabled+0x13/0x30 [ 224.133172][ C1] __mutex_lock+0x6a4/0xd70 [ 224.133193][ C1] ? mark_lock+0x9a/0x360 [ 224.133220][ C1] ? __mutex_lock+0x527/0xd70 [ 224.133246][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 224.133270][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 224.133305][ C1] ? get_rtnl_holder+0x144/0x190 [ 224.133328][ C1] addrconf_dad_work+0xd0/0x16f0 [ 224.133362][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 224.133387][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 224.133429][ C1] ? process_scheduled_works+0x945/0x1830 [ 224.133450][ C1] process_scheduled_works+0xa2c/0x1830 [ 224.133503][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 224.133536][ C1] ? assign_work+0x364/0x3d0 [ 224.133564][ C1] worker_thread+0x86d/0xd40 [ 224.133602][ C1] ? __kthread_parkme+0x169/0x1d0 [ 224.133629][ C1] ? __pfx_worker_thread+0x10/0x10 [ 224.133651][ C1] kthread+0x2f0/0x390 [ 224.133675][ C1] ? __pfx_worker_thread+0x10/0x10 [ 224.133696][ C1] ? __pfx_kthread+0x10/0x10 [ 224.133722][ C1] ret_from_fork+0x4b/0x80 [ 224.133744][ C1] ? __pfx_kthread+0x10/0x10 [ 224.133769][ C1] ret_from_fork_asm+0x1a/0x30 [ 224.133810][ C1] [ 224.133817][ C1] DEBUG: holding rtnl_mutex for 2746 jiffies. [ 224.133826][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 224.133855][ C1] Workqueue: netns cleanup_net [ 224.133873][ C1] Call Trace: [ 224.133880][ C1] [ 224.133892][ C1] __schedule+0x1800/0x4a60 [ 224.133938][ C1] ? __pfx___schedule+0x10/0x10 [ 224.133963][ C1] ? __pfx_lock_release+0x10/0x10 [ 224.133983][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 224.134010][ C1] ? kthread_data+0x52/0xd0 [ 224.134034][ C1] ? wq_worker_sleeping+0x66/0x240 [ 224.134059][ C1] ? schedule+0x90/0x320 [ 224.134081][ C1] schedule+0x14b/0x320 [ 224.134105][ C1] synchronize_rcu_expedited+0x684/0x830 [ 224.134137][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 224.134183][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 224.134210][ C1] ? __pfx___might_resched+0x10/0x10 [ 224.134230][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 224.134253][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 224.134276][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 224.134311][ C1] synchronize_rcu+0x11b/0x360 [ 224.134337][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 224.134379][ C1] lockdep_unregister_key+0x556/0x610 [ 224.134410][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 224.134443][ C1] ? rcu_is_watching+0x15/0xb0 [ 224.134468][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 224.134493][ C1] __qdisc_destroy+0x165/0x410 [ 224.134515][ C1] dev_shutdown+0x357/0x440 [ 224.134538][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 224.134585][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 224.134628][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 224.134659][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 224.134688][ C1] default_device_exit_batch+0xa0f/0xa90 [ 224.134727][ C1] ? __pfx___might_resched+0x10/0x10 [ 224.134748][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 224.134785][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 224.134808][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 224.134838][ C1] cleanup_net+0x89d/0xcc0 [ 224.134863][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 224.134896][ C1] ? process_scheduled_works+0x945/0x1830 [ 224.134916][ C1] process_scheduled_works+0xa2c/0x1830 [ 224.134969][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 224.135001][ C1] ? assign_work+0x364/0x3d0 [ 224.135028][ C1] worker_thread+0x86d/0xd40 [ 224.135060][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 224.135085][ C1] ? __kthread_parkme+0x169/0x1d0 [ 224.135112][ C1] ? __pfx_worker_thread+0x10/0x10 [ 224.135134][ C1] kthread+0x2f0/0x390 [ 224.135158][ C1] ? __pfx_worker_thread+0x10/0x10 [ 224.135181][ C1] ? __pfx_kthread+0x10/0x10 [ 224.135206][ C1] ret_from_fork+0x4b/0x80 [ 224.135229][ C1] ? __pfx_kthread+0x10/0x10 [ 224.135254][ C1] ret_from_fork_asm+0x1a/0x30 [ 224.135294][ C1] [ 224.135303][ C1] [ 224.135303][ C1] Showing all locks held in the system: [ 224.135319][ C1] 5 locks held by kworker/u8:3/52: [ 224.135335][ C1] 5 locks held by kworker/u8:5/143: [ 224.135345][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 224.135397][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 224.135450][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 224.135496][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 224.135549][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 224.135620][ C1] 3 locks held by kworker/u8:7/2422: [ 224.135631][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 224.135680][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 224.135729][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 224.135781][ C1] 3 locks held by kworker/u8:11/2871: [ 224.135794][ C1] 2 locks held by getty/4856: [ 224.135803][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 224.135855][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 224.135907][ C1] 3 locks held by kworker/1:3/5150: [ 224.135917][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 224.135965][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 224.136014][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 224.136063][ C1] 1 lock held by syz-executor/6328: [ 224.136073][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 224.136128][ C1] 3 locks held by syz.4.254/6503: [ 224.136139][ C1] 6 locks held by syz.1.256/6510: [ 224.136149][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 224.136196][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 224.136246][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 224.136297][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 224.136342][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 224.136387][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 224.136444][ C1] [ 224.136450][ C1] ============================================= [ 224.136450][ C1] [ 225.169838][ C1] DEBUG: waiting rtnl_mutex for 2855 jiffies. [ 225.169862][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 225.169900][ C1] Call Trace: [ 225.169909][ C1] [ 225.169923][ C1] __schedule+0x1800/0x4a60 [ 225.169983][ C1] ? __pfx___schedule+0x10/0x10 [ 225.170009][ C1] ? __pfx_lock_release+0x10/0x10 [ 225.170034][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 225.170073][ C1] ? schedule+0x90/0x320 [ 225.170097][ C1] schedule+0x14b/0x320 [ 225.170122][ C1] schedule_preempt_disabled+0x13/0x30 [ 225.170142][ C1] __mutex_lock+0x6a4/0xd70 [ 225.170170][ C1] ? __mutex_lock+0x527/0xd70 [ 225.170196][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 225.170225][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 225.170262][ C1] ? get_rtnl_holder+0x144/0x190 [ 225.170283][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 225.170314][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 225.170345][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 225.170369][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 225.170403][ C1] ? __pfx_validate_chain+0x10/0x10 [ 225.170430][ C1] ? __pfx_validate_chain+0x10/0x10 [ 225.170458][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 225.170487][ C1] ? mark_lock+0x9a/0x360 [ 225.170509][ C1] ? __pfx_validate_chain+0x10/0x10 [ 225.170538][ C1] ? __lock_acquire+0x1359/0x2000 [ 225.170578][ C1] ? mark_lock+0x9a/0x360 [ 225.170606][ C1] ? __lock_acquire+0x1359/0x2000 [ 225.170652][ C1] netlink_rcv_skb+0x1e3/0x430 [ 225.170681][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 225.170710][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 225.170762][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 225.170783][ C1] netlink_unicast+0x7f0/0x990 [ 225.170818][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 225.170841][ C1] ? __virt_addr_valid+0x183/0x530 [ 225.170869][ C1] ? __check_object_size+0x49c/0x900 [ 225.170891][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 225.170918][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 225.170950][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 225.170966][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 225.170991][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 225.171014][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 225.171037][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 225.171065][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 225.171086][ C1] __sock_sendmsg+0x221/0x270 [ 225.171117][ C1] __sys_sendto+0x3a4/0x4f0 [ 225.171144][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 225.171194][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 225.171220][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 225.171250][ C1] __x64_sys_sendto+0xde/0x100 [ 225.171274][ C1] do_syscall_64+0xf3/0x230 [ 225.171292][ C1] ? clear_bhb_loop+0x35/0x90 [ 225.171317][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 225.171339][ C1] RIP: 0033:0x7f87c977796c [ 225.171362][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 225.171382][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 225.171396][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 225.171408][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 225.171420][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 225.171431][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 225.171461][ C1] [ 225.171469][ C1] DEBUG: waiting rtnl_mutex for 2753 jiffies. [ 225.171478][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 225.171508][ C1] Workqueue: events linkwatch_event [ 225.171528][ C1] Call Trace: [ 225.171535][ C1] [ 225.171548][ C1] __schedule+0x1800/0x4a60 [ 225.171593][ C1] ? __pfx___schedule+0x10/0x10 [ 225.171616][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 225.171638][ C1] ? __pfx_lock_release+0x10/0x10 [ 225.171662][ C1] ? kick_pool+0x45c/0x620 [ 225.171691][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 225.171710][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 225.171736][ C1] ? schedule+0x90/0x320 [ 225.171755][ C1] schedule+0x14b/0x320 [ 225.171779][ C1] schedule_preempt_disabled+0x13/0x30 [ 225.171799][ C1] __mutex_lock+0x6a4/0xd70 [ 225.171827][ C1] ? __mutex_lock+0x527/0xd70 [ 225.171852][ C1] ? linkwatch_event+0xe/0x60 [ 225.171872][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 225.171907][ C1] ? get_rtnl_holder+0x144/0x190 [ 225.171928][ C1] ? process_scheduled_works+0x945/0x1830 [ 225.171949][ C1] linkwatch_event+0xe/0x60 [ 225.171965][ C1] process_scheduled_works+0xa2c/0x1830 [ 225.172019][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 225.172051][ C1] ? assign_work+0x364/0x3d0 [ 225.172084][ C1] worker_thread+0x86d/0xd40 [ 225.172116][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 225.172142][ C1] ? __kthread_parkme+0x169/0x1d0 [ 225.172169][ C1] ? __pfx_worker_thread+0x10/0x10 [ 225.172191][ C1] kthread+0x2f0/0x390 [ 225.172215][ C1] ? __pfx_worker_thread+0x10/0x10 [ 225.172237][ C1] ? __pfx_kthread+0x10/0x10 [ 225.172262][ C1] ret_from_fork+0x4b/0x80 [ 225.172285][ C1] ? __pfx_kthread+0x10/0x10 [ 225.172310][ C1] ret_from_fork_asm+0x1a/0x30 [ 225.172354][ C1] [ 225.172361][ C1] DEBUG: waiting rtnl_mutex for 2868 jiffies. [ 225.172370][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 225.172399][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 225.172422][ C1] Call Trace: [ 225.172429][ C1] [ 225.172441][ C1] __schedule+0x1800/0x4a60 [ 225.172487][ C1] ? __pfx___schedule+0x10/0x10 [ 225.172512][ C1] ? __pfx_lock_release+0x10/0x10 [ 225.172536][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 225.172564][ C1] ? kthread_data+0x52/0xd0 [ 225.172585][ C1] ? schedule+0x90/0x320 [ 225.172604][ C1] ? wq_worker_sleeping+0x66/0x240 [ 225.172629][ C1] ? schedule+0x90/0x320 [ 225.172649][ C1] schedule+0x14b/0x320 [ 225.172672][ C1] schedule_preempt_disabled+0x13/0x30 [ 225.172692][ C1] __mutex_lock+0x6a4/0xd70 [ 225.172714][ C1] ? mark_lock+0x9a/0x360 [ 225.172741][ C1] ? __mutex_lock+0x527/0xd70 [ 225.172766][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 225.172790][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 225.172826][ C1] ? get_rtnl_holder+0x144/0x190 [ 225.172848][ C1] addrconf_dad_work+0xd0/0x16f0 [ 225.172881][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 225.172904][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 225.172941][ C1] ? process_scheduled_works+0x945/0x1830 [ 225.172961][ C1] process_scheduled_works+0xa2c/0x1830 [ 225.173015][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 225.173047][ C1] ? assign_work+0x364/0x3d0 [ 225.173074][ C1] worker_thread+0x86d/0xd40 [ 225.173117][ C1] ? __kthread_parkme+0x169/0x1d0 [ 225.173144][ C1] ? __pfx_worker_thread+0x10/0x10 [ 225.173166][ C1] kthread+0x2f0/0x390 [ 225.173190][ C1] ? __pfx_worker_thread+0x10/0x10 [ 225.173211][ C1] ? __pfx_kthread+0x10/0x10 [ 225.173237][ C1] ret_from_fork+0x4b/0x80 [ 225.173259][ C1] ? __pfx_kthread+0x10/0x10 [ 225.173284][ C1] ret_from_fork_asm+0x1a/0x30 [ 225.173325][ C1] [ 225.173333][ C1] DEBUG: holding rtnl_mutex for 2850 jiffies. [ 225.173342][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 225.173370][ C1] Workqueue: netns cleanup_net [ 225.173388][ C1] Call Trace: [ 225.173395][ C1] [ 225.173407][ C1] __schedule+0x1800/0x4a60 [ 225.173453][ C1] ? __pfx___schedule+0x10/0x10 [ 225.173478][ C1] ? __pfx_lock_release+0x10/0x10 [ 225.173498][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 225.173525][ C1] ? kthread_data+0x52/0xd0 [ 225.173549][ C1] ? wq_worker_sleeping+0x66/0x240 [ 225.173574][ C1] ? schedule+0x90/0x320 [ 225.173593][ C1] schedule+0x14b/0x320 [ 225.173617][ C1] synchronize_rcu_expedited+0x684/0x830 [ 225.173649][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 225.173693][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 225.173720][ C1] ? __pfx___might_resched+0x10/0x10 [ 225.173739][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 225.173762][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 225.173785][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 225.173821][ C1] synchronize_rcu+0x11b/0x360 [ 225.173847][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 225.173888][ C1] lockdep_unregister_key+0x556/0x610 [ 225.173916][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 225.173944][ C1] ? rcu_is_watching+0x15/0xb0 [ 225.173978][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 225.174003][ C1] __qdisc_destroy+0x165/0x410 [ 225.174025][ C1] dev_shutdown+0x357/0x440 [ 225.174049][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 225.174098][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 225.174141][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 225.174172][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 225.174202][ C1] default_device_exit_batch+0xa0f/0xa90 [ 225.174240][ C1] ? __pfx___might_resched+0x10/0x10 [ 225.174262][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 225.174299][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 225.174322][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 225.174353][ C1] cleanup_net+0x89d/0xcc0 [ 225.174379][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 225.174411][ C1] ? process_scheduled_works+0x945/0x1830 [ 225.174431][ C1] process_scheduled_works+0xa2c/0x1830 [ 225.174484][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 225.174517][ C1] ? assign_work+0x364/0x3d0 [ 225.174544][ C1] worker_thread+0x86d/0xd40 [ 225.174576][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 225.174602][ C1] ? __kthread_parkme+0x169/0x1d0 [ 225.174629][ C1] ? __pfx_worker_thread+0x10/0x10 [ 225.174651][ C1] kthread+0x2f0/0x390 [ 225.174675][ C1] ? __pfx_worker_thread+0x10/0x10 [ 225.174696][ C1] ? __pfx_kthread+0x10/0x10 [ 225.174722][ C1] ret_from_fork+0x4b/0x80 [ 225.174744][ C1] ? __pfx_kthread+0x10/0x10 [ 225.174769][ C1] ret_from_fork_asm+0x1a/0x30 [ 225.174810][ C1] [ 225.174819][ C1] [ 225.174819][ C1] Showing all locks held in the system: [ 225.174834][ C1] 5 locks held by kworker/u8:3/52: [ 225.174850][ C1] 5 locks held by kworker/u8:5/143: [ 225.174860][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 225.174912][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 225.174961][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 225.175006][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 225.175060][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 225.175138][ C1] 3 locks held by kworker/u8:7/2422: [ 225.175148][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 225.175197][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 225.175246][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 225.175298][ C1] 3 locks held by kworker/u8:11/2871: [ 225.175311][ C1] 2 locks held by getty/4856: [ 225.175321][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 225.175375][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 225.175427][ C1] 3 locks held by kworker/1:3/5150: [ 225.175437][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 225.175485][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 225.175534][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 225.175584][ C1] 1 lock held by syz-executor/6328: [ 225.175594][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 225.175648][ C1] 3 locks held by syz.4.254/6503: [ 225.175658][ C1] 6 locks held by syz.1.256/6510: [ 225.175668][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 225.175713][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 225.175763][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 225.175814][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 225.175860][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 225.175904][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 225.175957][ C1] [ 225.175962][ C1] ============================================= [ 225.175962][ C1] [ 226.212709][ C1] DEBUG: waiting rtnl_mutex for 2959 jiffies. [ 226.212729][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 226.212763][ C1] Call Trace: [ 226.212772][ C1] [ 226.212785][ C1] __schedule+0x1800/0x4a60 [ 226.212839][ C1] ? __pfx___schedule+0x10/0x10 [ 226.212864][ C1] ? __pfx_lock_release+0x10/0x10 [ 226.212889][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 226.212928][ C1] ? schedule+0x90/0x320 [ 226.212948][ C1] schedule+0x14b/0x320 [ 226.212972][ C1] schedule_preempt_disabled+0x13/0x30 [ 226.212993][ C1] __mutex_lock+0x6a4/0xd70 [ 226.213021][ C1] ? __mutex_lock+0x527/0xd70 [ 226.213060][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 226.213089][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 226.213126][ C1] ? get_rtnl_holder+0x144/0x190 [ 226.213148][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 226.213179][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 226.213208][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 226.213233][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 226.213267][ C1] ? __pfx_validate_chain+0x10/0x10 [ 226.213293][ C1] ? __pfx_validate_chain+0x10/0x10 [ 226.213320][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 226.213351][ C1] ? mark_lock+0x9a/0x360 [ 226.213373][ C1] ? __pfx_validate_chain+0x10/0x10 [ 226.213402][ C1] ? __lock_acquire+0x1359/0x2000 [ 226.213442][ C1] ? mark_lock+0x9a/0x360 [ 226.213471][ C1] ? __lock_acquire+0x1359/0x2000 [ 226.213516][ C1] netlink_rcv_skb+0x1e3/0x430 [ 226.213545][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 226.213574][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 226.213627][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 226.213648][ C1] netlink_unicast+0x7f0/0x990 [ 226.213684][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 226.213706][ C1] ? __virt_addr_valid+0x183/0x530 [ 226.213735][ C1] ? __check_object_size+0x49c/0x900 [ 226.213758][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 226.213785][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 226.213817][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 226.213833][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 226.213858][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 226.213882][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 226.213905][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 226.213933][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 226.213949][ C1] __sock_sendmsg+0x221/0x270 [ 226.213980][ C1] __sys_sendto+0x3a4/0x4f0 [ 226.214007][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 226.214061][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 226.214087][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 226.214117][ C1] __x64_sys_sendto+0xde/0x100 [ 226.214141][ C1] do_syscall_64+0xf3/0x230 [ 226.214159][ C1] ? clear_bhb_loop+0x35/0x90 [ 226.214184][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 226.214205][ C1] RIP: 0033:0x7f87c977796c [ 226.214228][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 226.214247][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 226.214261][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 226.214274][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 226.214285][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 226.214297][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 226.214327][ C1] [ 226.214335][ C1] DEBUG: waiting rtnl_mutex for 2857 jiffies. [ 226.214344][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 226.214375][ C1] Workqueue: events linkwatch_event [ 226.214395][ C1] Call Trace: [ 226.214402][ C1] [ 226.214414][ C1] __schedule+0x1800/0x4a60 [ 226.214460][ C1] ? __pfx___schedule+0x10/0x10 [ 226.214482][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 226.214505][ C1] ? __pfx_lock_release+0x10/0x10 [ 226.214529][ C1] ? kick_pool+0x45c/0x620 [ 226.214558][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 226.214578][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 226.214621][ C1] ? schedule+0x90/0x320 [ 226.214641][ C1] schedule+0x14b/0x320 [ 226.214664][ C1] schedule_preempt_disabled+0x13/0x30 [ 226.214684][ C1] __mutex_lock+0x6a4/0xd70 [ 226.214712][ C1] ? __mutex_lock+0x527/0xd70 [ 226.214737][ C1] ? linkwatch_event+0xe/0x60 [ 226.214758][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 226.214792][ C1] ? get_rtnl_holder+0x144/0x190 [ 226.214812][ C1] ? process_scheduled_works+0x945/0x1830 [ 226.214833][ C1] linkwatch_event+0xe/0x60 [ 226.214850][ C1] process_scheduled_works+0xa2c/0x1830 [ 226.214903][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 226.214935][ C1] ? assign_work+0x364/0x3d0 [ 226.214963][ C1] worker_thread+0x86d/0xd40 [ 226.214994][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 226.215020][ C1] ? __kthread_parkme+0x169/0x1d0 [ 226.215057][ C1] ? __pfx_worker_thread+0x10/0x10 [ 226.215079][ C1] kthread+0x2f0/0x390 [ 226.215103][ C1] ? __pfx_worker_thread+0x10/0x10 [ 226.215124][ C1] ? __pfx_kthread+0x10/0x10 [ 226.215150][ C1] ret_from_fork+0x4b/0x80 [ 226.215173][ C1] ? __pfx_kthread+0x10/0x10 [ 226.215197][ C1] ret_from_fork_asm+0x1a/0x30 [ 226.215240][ C1] [ 226.215247][ C1] DEBUG: waiting rtnl_mutex for 2972 jiffies. [ 226.215256][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 226.215285][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 226.215308][ C1] Call Trace: [ 226.215315][ C1] [ 226.215327][ C1] __schedule+0x1800/0x4a60 [ 226.215373][ C1] ? __pfx___schedule+0x10/0x10 [ 226.215397][ C1] ? __pfx_lock_release+0x10/0x10 [ 226.215421][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 226.215449][ C1] ? kthread_data+0x52/0xd0 [ 226.215471][ C1] ? schedule+0x90/0x320 [ 226.215490][ C1] ? wq_worker_sleeping+0x66/0x240 [ 226.215515][ C1] ? schedule+0x90/0x320 [ 226.215535][ C1] schedule+0x14b/0x320 [ 226.215559][ C1] schedule_preempt_disabled+0x13/0x30 [ 226.215579][ C1] __mutex_lock+0x6a4/0xd70 [ 226.215601][ C1] ? mark_lock+0x9a/0x360 [ 226.215627][ C1] ? __mutex_lock+0x527/0xd70 [ 226.215653][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 226.215677][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 226.215712][ C1] ? get_rtnl_holder+0x144/0x190 [ 226.215735][ C1] addrconf_dad_work+0xd0/0x16f0 [ 226.215768][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 226.215792][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 226.215829][ C1] ? process_scheduled_works+0x945/0x1830 [ 226.215849][ C1] process_scheduled_works+0xa2c/0x1830 [ 226.215902][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 226.215934][ C1] ? assign_work+0x364/0x3d0 [ 226.215962][ C1] worker_thread+0x86d/0xd40 [ 226.216000][ C1] ? __kthread_parkme+0x169/0x1d0 [ 226.216028][ C1] ? __pfx_worker_thread+0x10/0x10 [ 226.216054][ C1] kthread+0x2f0/0x390 [ 226.216077][ C1] ? __pfx_worker_thread+0x10/0x10 [ 226.216099][ C1] ? __pfx_kthread+0x10/0x10 [ 226.216125][ C1] ret_from_fork+0x4b/0x80 [ 226.216147][ C1] ? __pfx_kthread+0x10/0x10 [ 226.216171][ C1] ret_from_fork_asm+0x1a/0x30 [ 226.216212][ C1] [ 226.216219][ C1] DEBUG: holding rtnl_mutex for 2954 jiffies. [ 226.216229][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 226.216256][ C1] Workqueue: netns cleanup_net [ 226.216273][ C1] Call Trace: [ 226.216280][ C1] [ 226.216292][ C1] __schedule+0x1800/0x4a60 [ 226.216337][ C1] ? __pfx___schedule+0x10/0x10 [ 226.216362][ C1] ? __pfx_lock_release+0x10/0x10 [ 226.216383][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 226.216410][ C1] ? kthread_data+0x52/0xd0 [ 226.216433][ C1] ? wq_worker_sleeping+0x66/0x240 [ 226.216458][ C1] ? schedule+0x90/0x320 [ 226.216478][ C1] schedule+0x14b/0x320 [ 226.216501][ C1] synchronize_rcu_expedited+0x684/0x830 [ 226.216533][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 226.216577][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 226.216604][ C1] ? __pfx___might_resched+0x10/0x10 [ 226.216623][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 226.216646][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 226.216669][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 226.216704][ C1] synchronize_rcu+0x11b/0x360 [ 226.216730][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 226.216772][ C1] lockdep_unregister_key+0x556/0x610 [ 226.216800][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 226.216827][ C1] ? rcu_is_watching+0x15/0xb0 [ 226.216852][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 226.216877][ C1] __qdisc_destroy+0x165/0x410 [ 226.216899][ C1] dev_shutdown+0x357/0x440 [ 226.216922][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 226.216968][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 226.217011][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 226.217047][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 226.217077][ C1] default_device_exit_batch+0xa0f/0xa90 [ 226.217115][ C1] ? __pfx___might_resched+0x10/0x10 [ 226.217136][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 226.217173][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 226.217196][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 226.217226][ C1] cleanup_net+0x89d/0xcc0 [ 226.217252][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 226.217288][ C1] ? process_scheduled_works+0x945/0x1830 [ 226.217308][ C1] process_scheduled_works+0xa2c/0x1830 [ 226.217362][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 226.217394][ C1] ? assign_work+0x364/0x3d0 [ 226.217421][ C1] worker_thread+0x86d/0xd40 [ 226.217453][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 226.217479][ C1] ? __kthread_parkme+0x169/0x1d0 [ 226.217506][ C1] ? __pfx_worker_thread+0x10/0x10 [ 226.217528][ C1] kthread+0x2f0/0x390 [ 226.217552][ C1] ? __pfx_worker_thread+0x10/0x10 [ 226.217573][ C1] ? __pfx_kthread+0x10/0x10 [ 226.217598][ C1] ret_from_fork+0x4b/0x80 [ 226.217621][ C1] ? __pfx_kthread+0x10/0x10 [ 226.217645][ C1] ret_from_fork_asm+0x1a/0x30 [ 226.217687][ C1] [ 226.217696][ C1] [ 226.217696][ C1] Showing all locks held in the system: [ 226.217711][ C1] 5 locks held by kworker/u8:3/52: [ 226.217727][ C1] 5 locks held by kworker/u8:5/143: [ 226.217738][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 226.217789][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 226.217839][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 226.217884][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 226.217938][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 226.218011][ C1] 3 locks held by kworker/u8:7/2422: [ 226.218022][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 226.218077][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 226.218127][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 226.218179][ C1] 3 locks held by kworker/u8:11/2871: [ 226.218192][ C1] 2 locks held by getty/4856: [ 226.218202][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 226.218254][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 226.218307][ C1] 3 locks held by kworker/1:3/5150: [ 226.218317][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 226.218366][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 226.218415][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 226.218465][ C1] 1 lock held by syz-executor/6328: [ 226.218475][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 226.218530][ C1] 3 locks held by syz.4.254/6503: [ 226.218541][ C1] 6 locks held by syz.1.256/6510: [ 226.218551][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 226.218597][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 226.218646][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 226.218698][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 226.218744][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 226.218788][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 226.218841][ C1] [ 226.218846][ C1] ============================================= [ 226.218846][ C1] [ 227.250057][ C1] DEBUG: waiting rtnl_mutex for 3063 jiffies. [ 227.250076][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 227.250111][ C1] Call Trace: [ 227.250119][ C1] [ 227.250132][ C1] __schedule+0x1800/0x4a60 [ 227.250190][ C1] ? __pfx___schedule+0x10/0x10 [ 227.250216][ C1] ? __pfx_lock_release+0x10/0x10 [ 227.250241][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 227.250281][ C1] ? schedule+0x90/0x320 [ 227.250301][ C1] schedule+0x14b/0x320 [ 227.250325][ C1] schedule_preempt_disabled+0x13/0x30 [ 227.250346][ C1] __mutex_lock+0x6a4/0xd70 [ 227.250374][ C1] ? __mutex_lock+0x527/0xd70 [ 227.250400][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 227.250428][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 227.250471][ C1] ? get_rtnl_holder+0x144/0x190 [ 227.250497][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 227.250529][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 227.250558][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 227.250582][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 227.250615][ C1] ? __pfx_validate_chain+0x10/0x10 [ 227.250642][ C1] ? __pfx_validate_chain+0x10/0x10 [ 227.250669][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 227.250699][ C1] ? mark_lock+0x9a/0x360 [ 227.250721][ C1] ? __pfx_validate_chain+0x10/0x10 [ 227.250750][ C1] ? __lock_acquire+0x1359/0x2000 [ 227.250790][ C1] ? mark_lock+0x9a/0x360 [ 227.250818][ C1] ? __lock_acquire+0x1359/0x2000 [ 227.250864][ C1] netlink_rcv_skb+0x1e3/0x430 [ 227.250892][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 227.250921][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 227.250974][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 227.250994][ C1] netlink_unicast+0x7f0/0x990 [ 227.251030][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 227.251052][ C1] ? __virt_addr_valid+0x183/0x530 [ 227.251081][ C1] ? __check_object_size+0x49c/0x900 [ 227.251103][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 227.251130][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 227.251167][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 227.251184][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 227.251209][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 227.251232][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 227.251256][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 227.251284][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 227.251300][ C1] __sock_sendmsg+0x221/0x270 [ 227.251331][ C1] __sys_sendto+0x3a4/0x4f0 [ 227.251358][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 227.251407][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 227.251433][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 227.251463][ C1] __x64_sys_sendto+0xde/0x100 [ 227.251487][ C1] do_syscall_64+0xf3/0x230 [ 227.251504][ C1] ? clear_bhb_loop+0x35/0x90 [ 227.251529][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 227.251550][ C1] RIP: 0033:0x7f87c977796c [ 227.251572][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 227.251591][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 227.251605][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 227.251617][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 227.251629][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 227.251639][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 227.251669][ C1] [ 227.251676][ C1] DEBUG: waiting rtnl_mutex for 2961 jiffies. [ 227.251686][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 227.251717][ C1] Workqueue: events linkwatch_event [ 227.251738][ C1] Call Trace: [ 227.251744][ C1] [ 227.251757][ C1] __schedule+0x1800/0x4a60 [ 227.251803][ C1] ? __pfx___schedule+0x10/0x10 [ 227.251825][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 227.251848][ C1] ? __pfx_lock_release+0x10/0x10 [ 227.251872][ C1] ? kick_pool+0x45c/0x620 [ 227.251901][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 227.251921][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 227.251946][ C1] ? schedule+0x90/0x320 [ 227.251966][ C1] schedule+0x14b/0x320 [ 227.251995][ C1] schedule_preempt_disabled+0x13/0x30 [ 227.252015][ C1] __mutex_lock+0x6a4/0xd70 [ 227.252043][ C1] ? __mutex_lock+0x527/0xd70 [ 227.252069][ C1] ? linkwatch_event+0xe/0x60 [ 227.252089][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 227.252123][ C1] ? get_rtnl_holder+0x144/0x190 [ 227.252144][ C1] ? process_scheduled_works+0x945/0x1830 [ 227.252169][ C1] linkwatch_event+0xe/0x60 [ 227.252186][ C1] process_scheduled_works+0xa2c/0x1830 [ 227.252239][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 227.252271][ C1] ? assign_work+0x364/0x3d0 [ 227.252299][ C1] worker_thread+0x86d/0xd40 [ 227.252331][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 227.252356][ C1] ? __kthread_parkme+0x169/0x1d0 [ 227.252384][ C1] ? __pfx_worker_thread+0x10/0x10 [ 227.252406][ C1] kthread+0x2f0/0x390 [ 227.252430][ C1] ? __pfx_worker_thread+0x10/0x10 [ 227.252451][ C1] ? __pfx_kthread+0x10/0x10 [ 227.252477][ C1] ret_from_fork+0x4b/0x80 [ 227.252500][ C1] ? __pfx_kthread+0x10/0x10 [ 227.252525][ C1] ret_from_fork_asm+0x1a/0x30 [ 227.252566][ C1] [ 227.252574][ C1] DEBUG: waiting rtnl_mutex for 3076 jiffies. [ 227.252583][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 227.252612][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 227.252635][ C1] Call Trace: [ 227.252642][ C1] [ 227.252654][ C1] __schedule+0x1800/0x4a60 [ 227.252700][ C1] ? __pfx___schedule+0x10/0x10 [ 227.252725][ C1] ? __pfx_lock_release+0x10/0x10 [ 227.252749][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 227.252777][ C1] ? kthread_data+0x52/0xd0 [ 227.252798][ C1] ? schedule+0x90/0x320 [ 227.252817][ C1] ? wq_worker_sleeping+0x66/0x240 [ 227.252842][ C1] ? schedule+0x90/0x320 [ 227.252862][ C1] schedule+0x14b/0x320 [ 227.252886][ C1] schedule_preempt_disabled+0x13/0x30 [ 227.252906][ C1] __mutex_lock+0x6a4/0xd70 [ 227.252927][ C1] ? mark_lock+0x9a/0x360 [ 227.252954][ C1] ? __mutex_lock+0x527/0xd70 [ 227.252980][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 227.253004][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 227.253039][ C1] ? get_rtnl_holder+0x144/0x190 [ 227.253062][ C1] addrconf_dad_work+0xd0/0x16f0 [ 227.253095][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 227.253119][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 227.253161][ C1] ? process_scheduled_works+0x945/0x1830 [ 227.253182][ C1] process_scheduled_works+0xa2c/0x1830 [ 227.253235][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 227.253268][ C1] ? assign_work+0x364/0x3d0 [ 227.253295][ C1] worker_thread+0x86d/0xd40 [ 227.253334][ C1] ? __kthread_parkme+0x169/0x1d0 [ 227.253361][ C1] ? __pfx_worker_thread+0x10/0x10 [ 227.253383][ C1] kthread+0x2f0/0x390 [ 227.253407][ C1] ? __pfx_worker_thread+0x10/0x10 [ 227.253428][ C1] ? __pfx_kthread+0x10/0x10 [ 227.253454][ C1] ret_from_fork+0x4b/0x80 [ 227.253476][ C1] ? __pfx_kthread+0x10/0x10 [ 227.253501][ C1] ret_from_fork_asm+0x1a/0x30 [ 227.253543][ C1] [ 227.253549][ C1] DEBUG: holding rtnl_mutex for 3058 jiffies. [ 227.253559][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 227.253587][ C1] Workqueue: netns cleanup_net [ 227.253605][ C1] Call Trace: [ 227.253612][ C1] [ 227.253624][ C1] __schedule+0x1800/0x4a60 [ 227.253669][ C1] ? __pfx___schedule+0x10/0x10 [ 227.253694][ C1] ? __pfx_lock_release+0x10/0x10 [ 227.253715][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 227.253742][ C1] ? kthread_data+0x52/0xd0 [ 227.253766][ C1] ? wq_worker_sleeping+0x66/0x240 [ 227.253791][ C1] ? schedule+0x90/0x320 [ 227.253811][ C1] schedule+0x14b/0x320 [ 227.253834][ C1] synchronize_rcu_expedited+0x684/0x830 [ 227.253868][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 227.253913][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 227.253940][ C1] ? __pfx___might_resched+0x10/0x10 [ 227.253960][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 227.253983][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 227.254006][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 227.254042][ C1] synchronize_rcu+0x11b/0x360 [ 227.254068][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 227.254109][ C1] lockdep_unregister_key+0x556/0x610 [ 227.254137][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 227.254169][ C1] ? rcu_is_watching+0x15/0xb0 [ 227.254194][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 227.254219][ C1] __qdisc_destroy+0x165/0x410 [ 227.254241][ C1] dev_shutdown+0x357/0x440 [ 227.254265][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 227.254311][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 227.254354][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 227.254385][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 227.254415][ C1] default_device_exit_batch+0xa0f/0xa90 [ 227.254453][ C1] ? __pfx___might_resched+0x10/0x10 [ 227.254474][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 227.254511][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 227.254535][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 227.254564][ C1] cleanup_net+0x89d/0xcc0 [ 227.254590][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 227.254622][ C1] ? process_scheduled_works+0x945/0x1830 [ 227.254643][ C1] process_scheduled_works+0xa2c/0x1830 [ 227.254696][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 227.254728][ C1] ? assign_work+0x364/0x3d0 [ 227.254756][ C1] worker_thread+0x86d/0xd40 [ 227.254788][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 227.254819][ C1] ? __kthread_parkme+0x169/0x1d0 [ 227.254847][ C1] ? __pfx_worker_thread+0x10/0x10 [ 227.254869][ C1] kthread+0x2f0/0x390 [ 227.254893][ C1] ? __pfx_worker_thread+0x10/0x10 [ 227.254917][ C1] ? __pfx_kthread+0x10/0x10 [ 227.254942][ C1] ret_from_fork+0x4b/0x80 [ 227.254965][ C1] ? __pfx_kthread+0x10/0x10 [ 227.254990][ C1] ret_from_fork_asm+0x1a/0x30 [ 227.255031][ C1] [ 227.255040][ C1] [ 227.255040][ C1] Showing all locks held in the system: [ 227.255055][ C1] 5 locks held by kworker/u8:3/52: [ 227.255071][ C1] 5 locks held by kworker/u8:5/143: [ 227.255081][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 227.255134][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 227.255188][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 227.255233][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 227.255287][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 227.255359][ C1] 3 locks held by kworker/u8:7/2422: [ 227.255369][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 227.255419][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 227.255469][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 227.255522][ C1] 3 locks held by kworker/u8:11/2871: [ 227.255536][ C1] 2 locks held by getty/4856: [ 227.255545][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 227.255599][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 227.255651][ C1] 3 locks held by kworker/1:3/5150: [ 227.255661][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 227.255710][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 227.255761][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 227.255818][ C1] 1 lock held by syz-executor/6328: [ 227.255829][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 227.255901][ C1] 3 locks held by syz.4.254/6503: [ 227.255914][ C1] 6 locks held by syz.1.256/6510: [ 227.255924][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 227.255970][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 227.256020][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 227.256071][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 227.256117][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 227.256167][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 227.256219][ C1] [ 227.256225][ C1] ============================================= [ 227.256225][ C1] [ 228.296248][ C1] DEBUG: waiting rtnl_mutex for 3167 jiffies. [ 228.296270][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 228.296303][ C1] Call Trace: [ 228.296311][ C1] [ 228.296324][ C1] __schedule+0x1800/0x4a60 [ 228.296376][ C1] ? __pfx___schedule+0x10/0x10 [ 228.296402][ C1] ? __pfx_lock_release+0x10/0x10 [ 228.296427][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 228.296466][ C1] ? schedule+0x90/0x320 [ 228.296486][ C1] schedule+0x14b/0x320 [ 228.296510][ C1] schedule_preempt_disabled+0x13/0x30 [ 228.296531][ C1] __mutex_lock+0x6a4/0xd70 [ 228.296560][ C1] ? __mutex_lock+0x527/0xd70 [ 228.296586][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 228.296615][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 228.296652][ C1] ? get_rtnl_holder+0x144/0x190 [ 228.296674][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 228.296705][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 228.296734][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 228.296758][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 228.296792][ C1] ? __pfx_validate_chain+0x10/0x10 [ 228.296819][ C1] ? __pfx_validate_chain+0x10/0x10 [ 228.296848][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 228.296878][ C1] ? mark_lock+0x9a/0x360 [ 228.296900][ C1] ? __pfx_validate_chain+0x10/0x10 [ 228.296929][ C1] ? __lock_acquire+0x1359/0x2000 [ 228.296968][ C1] ? mark_lock+0x9a/0x360 [ 228.296997][ C1] ? __lock_acquire+0x1359/0x2000 [ 228.297042][ C1] netlink_rcv_skb+0x1e3/0x430 [ 228.297077][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 228.297106][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 228.297159][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 228.297179][ C1] netlink_unicast+0x7f0/0x990 [ 228.297214][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 228.297237][ C1] ? __virt_addr_valid+0x183/0x530 [ 228.297267][ C1] ? __check_object_size+0x49c/0x900 [ 228.297290][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 228.297317][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 228.297354][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 228.297371][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 228.297396][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 228.297419][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 228.297442][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 228.297470][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 228.297486][ C1] __sock_sendmsg+0x221/0x270 [ 228.297517][ C1] __sys_sendto+0x3a4/0x4f0 [ 228.297543][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 228.297594][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 228.297621][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 228.297651][ C1] __x64_sys_sendto+0xde/0x100 [ 228.297675][ C1] do_syscall_64+0xf3/0x230 [ 228.297693][ C1] ? clear_bhb_loop+0x35/0x90 [ 228.297718][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 228.297738][ C1] RIP: 0033:0x7f87c977796c [ 228.297759][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 228.297779][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 228.297793][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 228.297810][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 228.297824][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 228.297836][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 228.297866][ C1] [ 228.297873][ C1] DEBUG: waiting rtnl_mutex for 3065 jiffies. [ 228.297882][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 228.297913][ C1] Workqueue: events linkwatch_event [ 228.297933][ C1] Call Trace: [ 228.297939][ C1] [ 228.297952][ C1] __schedule+0x1800/0x4a60 [ 228.297997][ C1] ? __pfx___schedule+0x10/0x10 [ 228.298020][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 228.298043][ C1] ? __pfx_lock_release+0x10/0x10 [ 228.298067][ C1] ? kick_pool+0x45c/0x620 [ 228.298100][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 228.298120][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 228.298145][ C1] ? schedule+0x90/0x320 [ 228.298165][ C1] schedule+0x14b/0x320 [ 228.298189][ C1] schedule_preempt_disabled+0x13/0x30 [ 228.298208][ C1] __mutex_lock+0x6a4/0xd70 [ 228.298236][ C1] ? __mutex_lock+0x527/0xd70 [ 228.298262][ C1] ? linkwatch_event+0xe/0x60 [ 228.298281][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 228.298316][ C1] ? get_rtnl_holder+0x144/0x190 [ 228.298337][ C1] ? process_scheduled_works+0x945/0x1830 [ 228.298357][ C1] linkwatch_event+0xe/0x60 [ 228.298374][ C1] process_scheduled_works+0xa2c/0x1830 [ 228.298427][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 228.298459][ C1] ? assign_work+0x364/0x3d0 [ 228.298487][ C1] worker_thread+0x86d/0xd40 [ 228.298518][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 228.298544][ C1] ? __kthread_parkme+0x169/0x1d0 [ 228.298571][ C1] ? __pfx_worker_thread+0x10/0x10 [ 228.298593][ C1] kthread+0x2f0/0x390 [ 228.298617][ C1] ? __pfx_worker_thread+0x10/0x10 [ 228.298639][ C1] ? __pfx_kthread+0x10/0x10 [ 228.298665][ C1] ret_from_fork+0x4b/0x80 [ 228.298687][ C1] ? __pfx_kthread+0x10/0x10 [ 228.298712][ C1] ret_from_fork_asm+0x1a/0x30 [ 228.298754][ C1] [ 228.298761][ C1] DEBUG: waiting rtnl_mutex for 3180 jiffies. [ 228.298770][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 228.298799][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 228.298823][ C1] Call Trace: [ 228.298830][ C1] [ 228.298842][ C1] __schedule+0x1800/0x4a60 [ 228.298889][ C1] ? __pfx___schedule+0x10/0x10 [ 228.298913][ C1] ? __pfx_lock_release+0x10/0x10 [ 228.298937][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 228.298966][ C1] ? kthread_data+0x52/0xd0 [ 228.298987][ C1] ? schedule+0x90/0x320 [ 228.299007][ C1] ? wq_worker_sleeping+0x66/0x240 [ 228.299031][ C1] ? schedule+0x90/0x320 [ 228.299051][ C1] schedule+0x14b/0x320 [ 228.299080][ C1] schedule_preempt_disabled+0x13/0x30 [ 228.299100][ C1] __mutex_lock+0x6a4/0xd70 [ 228.299122][ C1] ? mark_lock+0x9a/0x360 [ 228.299149][ C1] ? __mutex_lock+0x527/0xd70 [ 228.299174][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 228.299199][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 228.299234][ C1] ? get_rtnl_holder+0x144/0x190 [ 228.299256][ C1] addrconf_dad_work+0xd0/0x16f0 [ 228.299290][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 228.299313][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 228.299351][ C1] ? process_scheduled_works+0x945/0x1830 [ 228.299371][ C1] process_scheduled_works+0xa2c/0x1830 [ 228.299424][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 228.299456][ C1] ? assign_work+0x364/0x3d0 [ 228.299484][ C1] worker_thread+0x86d/0xd40 [ 228.299523][ C1] ? __kthread_parkme+0x169/0x1d0 [ 228.299550][ C1] ? __pfx_worker_thread+0x10/0x10 [ 228.299572][ C1] kthread+0x2f0/0x390 [ 228.299596][ C1] ? __pfx_worker_thread+0x10/0x10 [ 228.299617][ C1] ? __pfx_kthread+0x10/0x10 [ 228.299643][ C1] ret_from_fork+0x4b/0x80 [ 228.299665][ C1] ? __pfx_kthread+0x10/0x10 [ 228.299690][ C1] ret_from_fork_asm+0x1a/0x30 [ 228.299731][ C1] [ 228.299803][ C1] DEBUG: holding rtnl_mutex for 3163 jiffies. [ 228.299819][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 228.299864][ C1] Workqueue: netns cleanup_net [ 228.299891][ C1] Call Trace: [ 228.299900][ C1] [ 228.299918][ C1] __schedule+0x1800/0x4a60 [ 228.299980][ C1] ? __pfx___schedule+0x10/0x10 [ 228.300015][ C1] ? __pfx_lock_release+0x10/0x10 [ 228.300044][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 228.300089][ C1] ? kthread_data+0x52/0xd0 [ 228.300126][ C1] ? wq_worker_sleeping+0x66/0x240 [ 228.300153][ C1] ? schedule+0x90/0x320 [ 228.300172][ C1] schedule+0x14b/0x320 [ 228.300197][ C1] synchronize_rcu_expedited+0x684/0x830 [ 228.300229][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 228.300274][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 228.300302][ C1] ? __pfx___might_resched+0x10/0x10 [ 228.300321][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 228.300345][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 228.300368][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 228.300404][ C1] synchronize_rcu+0x11b/0x360 [ 228.300431][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 228.300473][ C1] lockdep_unregister_key+0x556/0x610 [ 228.300501][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 228.300529][ C1] ? rcu_is_watching+0x15/0xb0 [ 228.300554][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 228.300582][ C1] __qdisc_destroy+0x165/0x410 [ 228.300604][ C1] dev_shutdown+0x357/0x440 [ 228.300628][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 228.300674][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 228.300718][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 228.300759][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 228.300790][ C1] default_device_exit_batch+0xa0f/0xa90 [ 228.300831][ C1] ? __pfx___might_resched+0x10/0x10 [ 228.300854][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 228.300891][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 228.300915][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 228.300951][ C1] cleanup_net+0x89d/0xcc0 [ 228.300978][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 228.301011][ C1] ? process_scheduled_works+0x945/0x1830 [ 228.301032][ C1] process_scheduled_works+0xa2c/0x1830 [ 228.301091][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 228.301124][ C1] ? assign_work+0x364/0x3d0 [ 228.301152][ C1] worker_thread+0x86d/0xd40 [ 228.301185][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 228.301216][ C1] ? __kthread_parkme+0x169/0x1d0 [ 228.301244][ C1] ? __pfx_worker_thread+0x10/0x10 [ 228.301267][ C1] kthread+0x2f0/0x390 [ 228.301293][ C1] ? __pfx_worker_thread+0x10/0x10 [ 228.301314][ C1] ? __pfx_kthread+0x10/0x10 [ 228.301341][ C1] ret_from_fork+0x4b/0x80 [ 228.301365][ C1] ? __pfx_kthread+0x10/0x10 [ 228.301390][ C1] ret_from_fork_asm+0x1a/0x30 [ 228.301432][ C1] [ 228.301442][ C1] [ 228.301442][ C1] Showing all locks held in the system: [ 228.301457][ C1] 5 locks held by kworker/u8:3/52: [ 228.301474][ C1] 5 locks held by kworker/u8:5/143: [ 228.301485][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 228.301538][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 228.301600][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 228.301661][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 228.301717][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 228.301792][ C1] 3 locks held by kworker/u8:7/2422: [ 228.301803][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 228.301855][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 228.301905][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 228.301958][ C1] 3 locks held by kworker/u8:11/2871: [ 228.301973][ C1] 2 locks held by getty/4856: [ 228.301983][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 228.302037][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 228.302097][ C1] 3 locks held by kworker/1:3/5150: [ 228.302108][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 228.302158][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 228.302207][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 228.302259][ C1] 1 lock held by syz-executor/6328: [ 228.302270][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 228.302325][ C1] 3 locks held by syz.4.254/6503: [ 228.302336][ C1] 6 locks held by syz.1.256/6510: [ 228.302346][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 228.302392][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 228.302443][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 228.302496][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 228.302543][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 228.302588][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 228.302641][ C1] [ 228.302666][ C1] ============================================= [ 228.302666][ C1] [ 229.331394][ C1] DEBUG: waiting rtnl_mutex for 3271 jiffies. [ 229.331412][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 229.331447][ C1] Call Trace: [ 229.331455][ C1] [ 229.331470][ C1] __schedule+0x1800/0x4a60 [ 229.331525][ C1] ? __pfx___schedule+0x10/0x10 [ 229.331551][ C1] ? __pfx_lock_release+0x10/0x10 [ 229.331576][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 229.331616][ C1] ? schedule+0x90/0x320 [ 229.331637][ C1] schedule+0x14b/0x320 [ 229.331661][ C1] schedule_preempt_disabled+0x13/0x30 [ 229.331683][ C1] __mutex_lock+0x6a4/0xd70 [ 229.331711][ C1] ? __mutex_lock+0x527/0xd70 [ 229.331737][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 229.331772][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 229.331809][ C1] ? get_rtnl_holder+0x144/0x190 [ 229.331831][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 229.331863][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 229.331892][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 229.331917][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 229.331951][ C1] ? __pfx_validate_chain+0x10/0x10 [ 229.331979][ C1] ? __pfx_validate_chain+0x10/0x10 [ 229.332006][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 229.332037][ C1] ? mark_lock+0x9a/0x360 [ 229.332060][ C1] ? __pfx_validate_chain+0x10/0x10 [ 229.332089][ C1] ? __lock_acquire+0x1359/0x2000 [ 229.332130][ C1] ? mark_lock+0x9a/0x360 [ 229.332159][ C1] ? __lock_acquire+0x1359/0x2000 [ 229.332205][ C1] netlink_rcv_skb+0x1e3/0x430 [ 229.332235][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 229.332264][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 229.332317][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 229.332338][ C1] netlink_unicast+0x7f0/0x990 [ 229.332374][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 229.332397][ C1] ? __virt_addr_valid+0x183/0x530 [ 229.332427][ C1] ? __check_object_size+0x49c/0x900 [ 229.332449][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 229.332477][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 229.332509][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 229.332526][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 229.332552][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 229.332576][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 229.332600][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 229.332628][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 229.332645][ C1] __sock_sendmsg+0x221/0x270 [ 229.332676][ C1] __sys_sendto+0x3a4/0x4f0 [ 229.332703][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 229.332757][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 229.332785][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 229.332815][ C1] __x64_sys_sendto+0xde/0x100 [ 229.332840][ C1] do_syscall_64+0xf3/0x230 [ 229.332858][ C1] ? clear_bhb_loop+0x35/0x90 [ 229.332884][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 229.332905][ C1] RIP: 0033:0x7f87c977796c [ 229.332930][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 229.332950][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 229.332964][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 229.332977][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 229.332990][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 229.333001][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 229.333032][ C1] [ 229.333039][ C1] DEBUG: waiting rtnl_mutex for 3169 jiffies. [ 229.333049][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 229.333081][ C1] Workqueue: events linkwatch_event [ 229.333101][ C1] Call Trace: [ 229.333108][ C1] [ 229.333121][ C1] __schedule+0x1800/0x4a60 [ 229.333167][ C1] ? __pfx___schedule+0x10/0x10 [ 229.333190][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 229.333213][ C1] ? __pfx_lock_release+0x10/0x10 [ 229.333238][ C1] ? kick_pool+0x45c/0x620 [ 229.333268][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 229.333287][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 229.333313][ C1] ? schedule+0x90/0x320 [ 229.333333][ C1] schedule+0x14b/0x320 [ 229.333357][ C1] schedule_preempt_disabled+0x13/0x30 [ 229.333378][ C1] __mutex_lock+0x6a4/0xd70 [ 229.333406][ C1] ? __mutex_lock+0x527/0xd70 [ 229.333432][ C1] ? linkwatch_event+0xe/0x60 [ 229.333453][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 229.333488][ C1] ? get_rtnl_holder+0x144/0x190 [ 229.333509][ C1] ? process_scheduled_works+0x945/0x1830 [ 229.333530][ C1] linkwatch_event+0xe/0x60 [ 229.333548][ C1] process_scheduled_works+0xa2c/0x1830 [ 229.333601][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 229.333634][ C1] ? assign_work+0x364/0x3d0 [ 229.333662][ C1] worker_thread+0x86d/0xd40 [ 229.333695][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 229.333721][ C1] ? __kthread_parkme+0x169/0x1d0 [ 229.333748][ C1] ? __pfx_worker_thread+0x10/0x10 [ 229.333776][ C1] kthread+0x2f0/0x390 [ 229.333801][ C1] ? __pfx_worker_thread+0x10/0x10 [ 229.333822][ C1] ? __pfx_kthread+0x10/0x10 [ 229.333849][ C1] ret_from_fork+0x4b/0x80 [ 229.333872][ C1] ? __pfx_kthread+0x10/0x10 [ 229.333898][ C1] ret_from_fork_asm+0x1a/0x30 [ 229.333940][ C1] [ 229.333947][ C1] DEBUG: waiting rtnl_mutex for 3284 jiffies. [ 229.333957][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 229.333987][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 229.334010][ C1] Call Trace: [ 229.334017][ C1] [ 229.334030][ C1] __schedule+0x1800/0x4a60 [ 229.334076][ C1] ? __pfx___schedule+0x10/0x10 [ 229.334101][ C1] ? __pfx_lock_release+0x10/0x10 [ 229.334126][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 229.334155][ C1] ? kthread_data+0x52/0xd0 [ 229.334176][ C1] ? schedule+0x90/0x320 [ 229.334197][ C1] ? wq_worker_sleeping+0x66/0x240 [ 229.334222][ C1] ? schedule+0x90/0x320 [ 229.334242][ C1] schedule+0x14b/0x320 [ 229.334266][ C1] schedule_preempt_disabled+0x13/0x30 [ 229.334287][ C1] __mutex_lock+0x6a4/0xd70 [ 229.334309][ C1] ? mark_lock+0x9a/0x360 [ 229.334336][ C1] ? __mutex_lock+0x527/0xd70 [ 229.334363][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 229.334387][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 229.334423][ C1] ? get_rtnl_holder+0x144/0x190 [ 229.334446][ C1] addrconf_dad_work+0xd0/0x16f0 [ 229.334480][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 229.334504][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 229.334542][ C1] ? process_scheduled_works+0x945/0x1830 [ 229.334563][ C1] process_scheduled_works+0xa2c/0x1830 [ 229.334617][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 229.334650][ C1] ? assign_work+0x364/0x3d0 [ 229.334678][ C1] worker_thread+0x86d/0xd40 [ 229.334717][ C1] ? __kthread_parkme+0x169/0x1d0 [ 229.334745][ C1] ? __pfx_worker_thread+0x10/0x10 [ 229.334772][ C1] kthread+0x2f0/0x390 [ 229.334796][ C1] ? __pfx_worker_thread+0x10/0x10 [ 229.334818][ C1] ? __pfx_kthread+0x10/0x10 [ 229.334844][ C1] ret_from_fork+0x4b/0x80 [ 229.334867][ C1] ? __pfx_kthread+0x10/0x10 [ 229.334892][ C1] ret_from_fork_asm+0x1a/0x30 [ 229.334934][ C1] [ 229.334942][ C1] DEBUG: holding rtnl_mutex for 3266 jiffies. [ 229.334951][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 229.334980][ C1] Workqueue: netns cleanup_net [ 229.334998][ C1] Call Trace: [ 229.335005][ C1] [ 229.335018][ C1] __schedule+0x1800/0x4a60 [ 229.335064][ C1] ? __pfx___schedule+0x10/0x10 [ 229.335090][ C1] ? __pfx_lock_release+0x10/0x10 [ 229.335111][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 229.335139][ C1] ? kthread_data+0x52/0xd0 [ 229.335163][ C1] ? wq_worker_sleeping+0x66/0x240 [ 229.335189][ C1] ? schedule+0x90/0x320 [ 229.335209][ C1] schedule+0x14b/0x320 [ 229.335233][ C1] synchronize_rcu_expedited+0x684/0x830 [ 229.335266][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 229.335311][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 229.335339][ C1] ? __pfx___might_resched+0x10/0x10 [ 229.335359][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 229.335382][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 229.335406][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 229.335442][ C1] synchronize_rcu+0x11b/0x360 [ 229.335468][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 229.335510][ C1] lockdep_unregister_key+0x556/0x610 [ 229.335539][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 229.335567][ C1] ? rcu_is_watching+0x15/0xb0 [ 229.335593][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 229.335618][ C1] __qdisc_destroy+0x165/0x410 [ 229.335640][ C1] dev_shutdown+0x357/0x440 [ 229.335665][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 229.335712][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 229.335760][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 229.335792][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 229.335822][ C1] default_device_exit_batch+0xa0f/0xa90 [ 229.335861][ C1] ? __pfx___might_resched+0x10/0x10 [ 229.335883][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 229.335921][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 229.335945][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 229.335975][ C1] cleanup_net+0x89d/0xcc0 [ 229.336001][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 229.336034][ C1] ? process_scheduled_works+0x945/0x1830 [ 229.336055][ C1] process_scheduled_works+0xa2c/0x1830 [ 229.336108][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 229.336141][ C1] ? assign_work+0x364/0x3d0 [ 229.336169][ C1] worker_thread+0x86d/0xd40 [ 229.336201][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 229.336228][ C1] ? __kthread_parkme+0x169/0x1d0 [ 229.336255][ C1] ? __pfx_worker_thread+0x10/0x10 [ 229.336278][ C1] kthread+0x2f0/0x390 [ 229.336302][ C1] ? __pfx_worker_thread+0x10/0x10 [ 229.336324][ C1] ? __pfx_kthread+0x10/0x10 [ 229.336350][ C1] ret_from_fork+0x4b/0x80 [ 229.336373][ C1] ? __pfx_kthread+0x10/0x10 [ 229.336399][ C1] ret_from_fork_asm+0x1a/0x30 [ 229.336440][ C1] [ 229.336450][ C1] [ 229.336450][ C1] Showing all locks held in the system: [ 229.336465][ C1] 5 locks held by kworker/u8:3/52: [ 229.336481][ C1] 5 locks held by kworker/u8:5/143: [ 229.336492][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 229.336544][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 229.336594][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 229.336640][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 229.336695][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 229.336772][ C1] 3 locks held by kworker/u8:7/2422: [ 229.336782][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 229.336833][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 229.336883][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 229.336935][ C1] 3 locks held by kworker/u8:11/2871: [ 229.336949][ C1] 2 locks held by getty/4856: [ 229.336959][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 229.337013][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 229.337065][ C1] 3 locks held by kworker/1:3/5150: [ 229.337076][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 229.337125][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 229.337175][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 229.337225][ C1] 1 lock held by syz-executor/6328: [ 229.337235][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 229.337294][ C1] 3 locks held by syz.4.254/6503: [ 229.337305][ C1] 6 locks held by syz.1.256/6510: [ 229.337315][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 229.337364][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 229.337415][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 229.337466][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 229.337513][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 229.337558][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 229.337611][ C1] [ 229.337616][ C1] ============================================= [ 229.337616][ C1] [ 230.373974][ C1] DEBUG: waiting rtnl_mutex for 3375 jiffies. [ 230.373994][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 230.374028][ C1] Call Trace: [ 230.374037][ C1] [ 230.374052][ C1] __schedule+0x1800/0x4a60 [ 230.374107][ C1] ? __pfx___schedule+0x10/0x10 [ 230.374133][ C1] ? __pfx_lock_release+0x10/0x10 [ 230.374159][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 230.374199][ C1] ? schedule+0x90/0x320 [ 230.374220][ C1] schedule+0x14b/0x320 [ 230.374245][ C1] schedule_preempt_disabled+0x13/0x30 [ 230.374266][ C1] __mutex_lock+0x6a4/0xd70 [ 230.374294][ C1] ? __mutex_lock+0x527/0xd70 [ 230.374321][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 230.374350][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 230.374387][ C1] ? get_rtnl_holder+0x144/0x190 [ 230.374410][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 230.374441][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 230.374471][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 230.374495][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 230.374529][ C1] ? __pfx_validate_chain+0x10/0x10 [ 230.374557][ C1] ? __pfx_validate_chain+0x10/0x10 [ 230.374585][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 230.374615][ C1] ? mark_lock+0x9a/0x360 [ 230.374638][ C1] ? __pfx_validate_chain+0x10/0x10 [ 230.374672][ C1] ? __lock_acquire+0x1359/0x2000 [ 230.374712][ C1] ? mark_lock+0x9a/0x360 [ 230.374741][ C1] ? __lock_acquire+0x1359/0x2000 [ 230.374787][ C1] netlink_rcv_skb+0x1e3/0x430 [ 230.374817][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 230.374846][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 230.374901][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 230.374922][ C1] netlink_unicast+0x7f0/0x990 [ 230.374958][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 230.374981][ C1] ? __virt_addr_valid+0x183/0x530 [ 230.375011][ C1] ? __check_object_size+0x49c/0x900 [ 230.375036][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 230.375063][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 230.375096][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 230.375112][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 230.375138][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 230.375162][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 230.375186][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 230.375214][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 230.375230][ C1] __sock_sendmsg+0x221/0x270 [ 230.375262][ C1] __sys_sendto+0x3a4/0x4f0 [ 230.375289][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 230.375339][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 230.375366][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 230.375396][ C1] __x64_sys_sendto+0xde/0x100 [ 230.375421][ C1] do_syscall_64+0xf3/0x230 [ 230.375439][ C1] ? clear_bhb_loop+0x35/0x90 [ 230.375465][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 230.375486][ C1] RIP: 0033:0x7f87c977796c [ 230.375510][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 230.375531][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 230.375552][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 230.375565][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 230.375577][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 230.375589][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 230.375622][ C1] [ 230.375630][ C1] DEBUG: waiting rtnl_mutex for 3273 jiffies. [ 230.375640][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 230.375675][ C1] Workqueue: events linkwatch_event [ 230.375698][ C1] Call Trace: [ 230.375705][ C1] [ 230.375718][ C1] __schedule+0x1800/0x4a60 [ 230.375765][ C1] ? __pfx___schedule+0x10/0x10 [ 230.375788][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 230.375811][ C1] ? __pfx_lock_release+0x10/0x10 [ 230.375835][ C1] ? kick_pool+0x45c/0x620 [ 230.375865][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 230.375885][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 230.375912][ C1] ? schedule+0x90/0x320 [ 230.375932][ C1] schedule+0x14b/0x320 [ 230.375957][ C1] schedule_preempt_disabled+0x13/0x30 [ 230.375977][ C1] __mutex_lock+0x6a4/0xd70 [ 230.376005][ C1] ? __mutex_lock+0x527/0xd70 [ 230.376032][ C1] ? linkwatch_event+0xe/0x60 [ 230.376052][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 230.376087][ C1] ? get_rtnl_holder+0x144/0x190 [ 230.376108][ C1] ? process_scheduled_works+0x945/0x1830 [ 230.376129][ C1] linkwatch_event+0xe/0x60 [ 230.376147][ C1] process_scheduled_works+0xa2c/0x1830 [ 230.376200][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 230.376233][ C1] ? assign_work+0x364/0x3d0 [ 230.376261][ C1] worker_thread+0x86d/0xd40 [ 230.376294][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 230.376320][ C1] ? __kthread_parkme+0x169/0x1d0 [ 230.376347][ C1] ? __pfx_worker_thread+0x10/0x10 [ 230.376370][ C1] kthread+0x2f0/0x390 [ 230.376395][ C1] ? __pfx_worker_thread+0x10/0x10 [ 230.376416][ C1] ? __pfx_kthread+0x10/0x10 [ 230.376442][ C1] ret_from_fork+0x4b/0x80 [ 230.376466][ C1] ? __pfx_kthread+0x10/0x10 [ 230.376491][ C1] ret_from_fork_asm+0x1a/0x30 [ 230.376533][ C1] [ 230.376540][ C1] DEBUG: waiting rtnl_mutex for 3388 jiffies. [ 230.376550][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 230.376579][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 230.376602][ C1] Call Trace: [ 230.376609][ C1] [ 230.376622][ C1] __schedule+0x1800/0x4a60 [ 230.376673][ C1] ? __pfx___schedule+0x10/0x10 [ 230.376699][ C1] ? __pfx_lock_release+0x10/0x10 [ 230.376723][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 230.376752][ C1] ? kthread_data+0x52/0xd0 [ 230.376773][ C1] ? schedule+0x90/0x320 [ 230.376793][ C1] ? wq_worker_sleeping+0x66/0x240 [ 230.376819][ C1] ? schedule+0x90/0x320 [ 230.376839][ C1] schedule+0x14b/0x320 [ 230.376863][ C1] schedule_preempt_disabled+0x13/0x30 [ 230.376884][ C1] __mutex_lock+0x6a4/0xd70 [ 230.376907][ C1] ? mark_lock+0x9a/0x360 [ 230.376934][ C1] ? __mutex_lock+0x527/0xd70 [ 230.376960][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 230.376985][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 230.377025][ C1] ? get_rtnl_holder+0x144/0x190 [ 230.377048][ C1] addrconf_dad_work+0xd0/0x16f0 [ 230.377083][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 230.377106][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 230.377144][ C1] ? process_scheduled_works+0x945/0x1830 [ 230.377165][ C1] process_scheduled_works+0xa2c/0x1830 [ 230.377219][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 230.377251][ C1] ? assign_work+0x364/0x3d0 [ 230.377283][ C1] worker_thread+0x86d/0xd40 [ 230.377322][ C1] ? __kthread_parkme+0x169/0x1d0 [ 230.377350][ C1] ? __pfx_worker_thread+0x10/0x10 [ 230.377372][ C1] kthread+0x2f0/0x390 [ 230.377397][ C1] ? __pfx_worker_thread+0x10/0x10 [ 230.377418][ C1] ? __pfx_kthread+0x10/0x10 [ 230.377444][ C1] ret_from_fork+0x4b/0x80 [ 230.377467][ C1] ? __pfx_kthread+0x10/0x10 [ 230.377492][ C1] ret_from_fork_asm+0x1a/0x30 [ 230.377534][ C1] [ 230.377541][ C1] DEBUG: holding rtnl_mutex for 3370 jiffies. [ 230.377552][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 230.377581][ C1] Workqueue: netns cleanup_net [ 230.377600][ C1] Call Trace: [ 230.377607][ C1] [ 230.377620][ C1] __schedule+0x1800/0x4a60 [ 230.377683][ C1] ? __pfx___schedule+0x10/0x10 [ 230.377709][ C1] ? __pfx_lock_release+0x10/0x10 [ 230.377730][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 230.377758][ C1] ? kthread_data+0x52/0xd0 [ 230.377782][ C1] ? wq_worker_sleeping+0x66/0x240 [ 230.377807][ C1] ? schedule+0x90/0x320 [ 230.377828][ C1] schedule+0x14b/0x320 [ 230.377852][ C1] synchronize_rcu_expedited+0x684/0x830 [ 230.377884][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 230.377931][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 230.377959][ C1] ? __pfx___might_resched+0x10/0x10 [ 230.377979][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 230.378002][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 230.378026][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 230.378061][ C1] synchronize_rcu+0x11b/0x360 [ 230.378088][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 230.378133][ C1] lockdep_unregister_key+0x556/0x610 [ 230.378161][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 230.378189][ C1] ? rcu_is_watching+0x15/0xb0 [ 230.378215][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 230.378240][ C1] __qdisc_destroy+0x165/0x410 [ 230.378263][ C1] dev_shutdown+0x357/0x440 [ 230.378288][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 230.378335][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 230.378379][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 230.378410][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 230.378440][ C1] default_device_exit_batch+0xa0f/0xa90 [ 230.378479][ C1] ? __pfx___might_resched+0x10/0x10 [ 230.378501][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 230.378539][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 230.378562][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 230.378592][ C1] cleanup_net+0x89d/0xcc0 [ 230.378619][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 230.378657][ C1] ? process_scheduled_works+0x945/0x1830 [ 230.378678][ C1] process_scheduled_works+0xa2c/0x1830 [ 230.378732][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 230.378764][ C1] ? assign_work+0x364/0x3d0 [ 230.378792][ C1] worker_thread+0x86d/0xd40 [ 230.378825][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 230.378851][ C1] ? __kthread_parkme+0x169/0x1d0 [ 230.378879][ C1] ? __pfx_worker_thread+0x10/0x10 [ 230.378903][ C1] kthread+0x2f0/0x390 [ 230.378932][ C1] ? __pfx_worker_thread+0x10/0x10 [ 230.378955][ C1] ? __pfx_kthread+0x10/0x10 [ 230.378983][ C1] ret_from_fork+0x4b/0x80 [ 230.379006][ C1] ? __pfx_kthread+0x10/0x10 [ 230.379031][ C1] ret_from_fork_asm+0x1a/0x30 [ 230.379073][ C1] [ 230.379082][ C1] [ 230.379082][ C1] Showing all locks held in the system: [ 230.379098][ C1] 5 locks held by kworker/u8:3/52: [ 230.379115][ C1] 5 locks held by kworker/u8:5/143: [ 230.379126][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 230.379179][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 230.379228][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 230.379276][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 230.379332][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 230.379404][ C1] 3 locks held by kworker/u8:7/2422: [ 230.379415][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 230.379465][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 230.379515][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 230.379568][ C1] 3 locks held by kworker/u8:11/2871: [ 230.379582][ C1] 2 locks held by getty/4856: [ 230.379592][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 230.379654][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 230.379708][ C1] 3 locks held by kworker/1:3/5150: [ 230.379719][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 230.379840][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 230.379890][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 230.379943][ C1] 1 lock held by syz-executor/6328: [ 230.379954][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 230.380009][ C1] 3 locks held by syz.4.254/6503: [ 230.380021][ C1] 6 locks held by syz.1.256/6510: [ 230.380031][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 230.380078][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 230.380128][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 230.380181][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 230.380228][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 230.380273][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 230.380326][ C1] [ 230.380332][ C1] ============================================= [ 230.380332][ C1] [ 231.413456][ C1] DEBUG: waiting rtnl_mutex for 3479 jiffies. [ 231.413480][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 231.413517][ C1] Call Trace: [ 231.413525][ C1] [ 231.413541][ C1] __schedule+0x1800/0x4a60 [ 231.413611][ C1] ? __pfx___schedule+0x10/0x10 [ 231.413639][ C1] ? __pfx_lock_release+0x10/0x10 [ 231.413665][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 231.413707][ C1] ? schedule+0x90/0x320 [ 231.413728][ C1] schedule+0x14b/0x320 [ 231.413754][ C1] schedule_preempt_disabled+0x13/0x30 [ 231.413776][ C1] __mutex_lock+0x6a4/0xd70 [ 231.413806][ C1] ? __mutex_lock+0x527/0xd70 [ 231.413834][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 231.413864][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 231.413903][ C1] ? get_rtnl_holder+0x144/0x190 [ 231.413926][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 231.413959][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 231.413990][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 231.414016][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 231.414052][ C1] ? __pfx_validate_chain+0x10/0x10 [ 231.414080][ C1] ? __pfx_validate_chain+0x10/0x10 [ 231.414109][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 231.414141][ C1] ? mark_lock+0x9a/0x360 [ 231.414165][ C1] ? __pfx_validate_chain+0x10/0x10 [ 231.414196][ C1] ? __lock_acquire+0x1359/0x2000 [ 231.414238][ C1] ? mark_lock+0x9a/0x360 [ 231.414268][ C1] ? __lock_acquire+0x1359/0x2000 [ 231.414317][ C1] netlink_rcv_skb+0x1e3/0x430 [ 231.414348][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 231.414378][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 231.414434][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 231.414456][ C1] netlink_unicast+0x7f0/0x990 [ 231.414493][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 231.414517][ C1] ? __virt_addr_valid+0x183/0x530 [ 231.414548][ C1] ? __check_object_size+0x49c/0x900 [ 231.414571][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 231.414609][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 231.414643][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 231.414672][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 231.414700][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 231.414725][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 231.414751][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 231.414780][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 231.414797][ C1] __sock_sendmsg+0x221/0x270 [ 231.414830][ C1] __sys_sendto+0x3a4/0x4f0 [ 231.414859][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 231.414911][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 231.414940][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 231.414972][ C1] __x64_sys_sendto+0xde/0x100 [ 231.414998][ C1] do_syscall_64+0xf3/0x230 [ 231.415017][ C1] ? clear_bhb_loop+0x35/0x90 [ 231.415043][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 231.415066][ C1] RIP: 0033:0x7f87c977796c [ 231.415092][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 231.415112][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 231.415128][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 231.415141][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 231.415153][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 231.415165][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 231.415197][ C1] [ 231.415205][ C1] DEBUG: waiting rtnl_mutex for 3377 jiffies. [ 231.415216][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 231.415249][ C1] Workqueue: events linkwatch_event [ 231.415270][ C1] Call Trace: [ 231.415277][ C1] [ 231.415291][ C1] __schedule+0x1800/0x4a60 [ 231.415340][ C1] ? __pfx___schedule+0x10/0x10 [ 231.415364][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 231.415388][ C1] ? __pfx_lock_release+0x10/0x10 [ 231.415413][ C1] ? kick_pool+0x45c/0x620 [ 231.415444][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 231.415465][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 231.415491][ C1] ? schedule+0x90/0x320 [ 231.415512][ C1] schedule+0x14b/0x320 [ 231.415538][ C1] schedule_preempt_disabled+0x13/0x30 [ 231.415560][ C1] __mutex_lock+0x6a4/0xd70 [ 231.415595][ C1] ? __mutex_lock+0x527/0xd70 [ 231.415623][ C1] ? linkwatch_event+0xe/0x60 [ 231.415644][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 231.415681][ C1] ? get_rtnl_holder+0x144/0x190 [ 231.415704][ C1] ? process_scheduled_works+0x945/0x1830 [ 231.415726][ C1] linkwatch_event+0xe/0x60 [ 231.415744][ C1] process_scheduled_works+0xa2c/0x1830 [ 231.415800][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 231.415834][ C1] ? assign_work+0x364/0x3d0 [ 231.415863][ C1] worker_thread+0x86d/0xd40 [ 231.415897][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 231.415924][ C1] ? __kthread_parkme+0x169/0x1d0 [ 231.415954][ C1] ? __pfx_worker_thread+0x10/0x10 [ 231.415977][ C1] kthread+0x2f0/0x390 [ 231.416003][ C1] ? __pfx_worker_thread+0x10/0x10 [ 231.416025][ C1] ? __pfx_kthread+0x10/0x10 [ 231.416053][ C1] ret_from_fork+0x4b/0x80 [ 231.416077][ C1] ? __pfx_kthread+0x10/0x10 [ 231.416103][ C1] ret_from_fork_asm+0x1a/0x30 [ 231.416151][ C1] [ 231.416159][ C1] DEBUG: waiting rtnl_mutex for 3492 jiffies. [ 231.416169][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 231.416201][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 231.416226][ C1] Call Trace: [ 231.416233][ C1] [ 231.416246][ C1] __schedule+0x1800/0x4a60 [ 231.416294][ C1] ? __pfx___schedule+0x10/0x10 [ 231.416321][ C1] ? __pfx_lock_release+0x10/0x10 [ 231.416346][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 231.416376][ C1] ? kthread_data+0x52/0xd0 [ 231.416398][ C1] ? schedule+0x90/0x320 [ 231.416420][ C1] ? wq_worker_sleeping+0x66/0x240 [ 231.416447][ C1] ? schedule+0x90/0x320 [ 231.416467][ C1] schedule+0x14b/0x320 [ 231.416493][ C1] schedule_preempt_disabled+0x13/0x30 [ 231.416514][ C1] __mutex_lock+0x6a4/0xd70 [ 231.416537][ C1] ? mark_lock+0x9a/0x360 [ 231.416565][ C1] ? __mutex_lock+0x527/0xd70 [ 231.416598][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 231.416624][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 231.416662][ C1] ? get_rtnl_holder+0x144/0x190 [ 231.416686][ C1] addrconf_dad_work+0xd0/0x16f0 [ 231.416721][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 231.416746][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 231.416785][ C1] ? process_scheduled_works+0x945/0x1830 [ 231.416807][ C1] process_scheduled_works+0xa2c/0x1830 [ 231.416863][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 231.416897][ C1] ? assign_work+0x364/0x3d0 [ 231.416927][ C1] worker_thread+0x86d/0xd40 [ 231.416967][ C1] ? __kthread_parkme+0x169/0x1d0 [ 231.416996][ C1] ? __pfx_worker_thread+0x10/0x10 [ 231.417020][ C1] kthread+0x2f0/0x390 [ 231.417045][ C1] ? __pfx_worker_thread+0x10/0x10 [ 231.417068][ C1] ? __pfx_kthread+0x10/0x10 [ 231.417095][ C1] ret_from_fork+0x4b/0x80 [ 231.417119][ C1] ? __pfx_kthread+0x10/0x10 [ 231.417145][ C1] ret_from_fork_asm+0x1a/0x30 [ 231.417189][ C1] [ 231.417197][ C1] DEBUG: holding rtnl_mutex for 3474 jiffies. [ 231.417207][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 231.417237][ C1] Workqueue: netns cleanup_net [ 231.417257][ C1] Call Trace: [ 231.417268][ C1] [ 231.417282][ C1] __schedule+0x1800/0x4a60 [ 231.417329][ C1] ? __pfx___schedule+0x10/0x10 [ 231.417356][ C1] ? __pfx_lock_release+0x10/0x10 [ 231.417378][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 231.417407][ C1] ? kthread_data+0x52/0xd0 [ 231.417432][ C1] ? wq_worker_sleeping+0x66/0x240 [ 231.417458][ C1] ? schedule+0x90/0x320 [ 231.417479][ C1] schedule+0x14b/0x320 [ 231.417505][ C1] synchronize_rcu_expedited+0x684/0x830 [ 231.417538][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 231.417590][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 231.417619][ C1] ? __pfx___might_resched+0x10/0x10 [ 231.417640][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 231.417664][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 231.417689][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 231.417726][ C1] synchronize_rcu+0x11b/0x360 [ 231.417766][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 231.417905][ C1] lockdep_unregister_key+0x556/0x610 [ 231.417944][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 231.417974][ C1] ? rcu_is_watching+0x15/0xb0 [ 231.418001][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 231.418028][ C1] __qdisc_destroy+0x165/0x410 [ 231.418052][ C1] dev_shutdown+0x357/0x440 [ 231.418077][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 231.418125][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 231.418169][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 231.418205][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 231.418237][ C1] default_device_exit_batch+0xa0f/0xa90 [ 231.418277][ C1] ? __pfx___might_resched+0x10/0x10 [ 231.418300][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 231.418338][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 231.418363][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 231.418396][ C1] cleanup_net+0x89d/0xcc0 [ 231.418428][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 231.418463][ C1] ? process_scheduled_works+0x945/0x1830 [ 231.418485][ C1] process_scheduled_works+0xa2c/0x1830 [ 231.418540][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 231.418573][ C1] ? assign_work+0x364/0x3d0 [ 231.418602][ C1] worker_thread+0x86d/0xd40 [ 231.418634][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 231.418688][ C1] ? __kthread_parkme+0x169/0x1d0 [ 231.418717][ C1] ? __pfx_worker_thread+0x10/0x10 [ 231.418740][ C1] kthread+0x2f0/0x390 [ 231.418765][ C1] ? __pfx_worker_thread+0x10/0x10 [ 231.418786][ C1] ? __pfx_kthread+0x10/0x10 [ 231.418813][ C1] ret_from_fork+0x4b/0x80 [ 231.418838][ C1] ? __pfx_kthread+0x10/0x10 [ 231.418864][ C1] ret_from_fork_asm+0x1a/0x30 [ 231.418907][ C1] [ 231.418920][ C1] [ 231.418920][ C1] Showing all locks held in the system: [ 231.418940][ C1] 5 locks held by kworker/u8:3/52: [ 231.418961][ C1] 5 locks held by kworker/u8:5/143: [ 231.418972][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 231.419028][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 231.419078][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 231.419125][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 231.419180][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 231.419262][ C1] 3 locks held by kworker/u8:7/2422: [ 231.419274][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 231.419324][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 231.419375][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 231.419432][ C1] 3 locks held by kworker/u8:11/2871: [ 231.419448][ C1] 2 locks held by getty/4856: [ 231.419458][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 231.419514][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 231.419570][ C1] 3 locks held by kworker/1:3/5150: [ 231.419581][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 231.419836][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 231.419915][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 231.419975][ C1] 1 lock held by syz-executor/6328: [ 231.419989][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 231.420046][ C1] 3 locks held by syz.4.254/6503: [ 231.420058][ C1] 6 locks held by syz.1.256/6510: [ 231.420068][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 231.420116][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 231.420168][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 231.420220][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 231.420267][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 231.420332][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 231.420386][ C1] [ 231.420393][ C1] ============================================= [ 231.420393][ C1] [ 232.449992][ C1] DEBUG: waiting rtnl_mutex for 3583 jiffies. [ 232.450014][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 232.450049][ C1] Call Trace: [ 232.450059][ C1] [ 232.450074][ C1] __schedule+0x1800/0x4a60 [ 232.450131][ C1] ? __pfx___schedule+0x10/0x10 [ 232.450157][ C1] ? __pfx_lock_release+0x10/0x10 [ 232.450183][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 232.450223][ C1] ? schedule+0x90/0x320 [ 232.450246][ C1] schedule+0x14b/0x320 [ 232.450277][ C1] schedule_preempt_disabled+0x13/0x30 [ 232.450299][ C1] __mutex_lock+0x6a4/0xd70 [ 232.450328][ C1] ? __mutex_lock+0x527/0xd70 [ 232.450354][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 232.450383][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 232.450421][ C1] ? get_rtnl_holder+0x144/0x190 [ 232.450443][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 232.450475][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 232.450511][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 232.450546][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 232.450580][ C1] ? __pfx_validate_chain+0x10/0x10 [ 232.450608][ C1] ? __pfx_validate_chain+0x10/0x10 [ 232.450636][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 232.450667][ C1] ? mark_lock+0x9a/0x360 [ 232.450690][ C1] ? __pfx_validate_chain+0x10/0x10 [ 232.450720][ C1] ? __lock_acquire+0x1359/0x2000 [ 232.450762][ C1] ? mark_lock+0x9a/0x360 [ 232.450792][ C1] ? __lock_acquire+0x1359/0x2000 [ 232.450838][ C1] netlink_rcv_skb+0x1e3/0x430 [ 232.450868][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 232.450897][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 232.450951][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 232.450972][ C1] netlink_unicast+0x7f0/0x990 [ 232.451017][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 232.451041][ C1] ? __virt_addr_valid+0x183/0x530 [ 232.451070][ C1] ? __check_object_size+0x49c/0x900 [ 232.451094][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 232.451121][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 232.451154][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 232.451171][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 232.451197][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 232.451220][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 232.451244][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 232.451272][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 232.451289][ C1] __sock_sendmsg+0x221/0x270 [ 232.451321][ C1] __sys_sendto+0x3a4/0x4f0 [ 232.451348][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 232.451399][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 232.451426][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 232.451456][ C1] __x64_sys_sendto+0xde/0x100 [ 232.451481][ C1] do_syscall_64+0xf3/0x230 [ 232.451500][ C1] ? clear_bhb_loop+0x35/0x90 [ 232.451530][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 232.451552][ C1] RIP: 0033:0x7f87c977796c [ 232.451577][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 232.451598][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 232.451613][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 232.451625][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 232.451637][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 232.451649][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 232.451679][ C1] [ 232.451702][ C1] DEBUG: waiting rtnl_mutex for 3481 jiffies. [ 232.451719][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 232.451841][ C1] Workqueue: events linkwatch_event [ 232.451870][ C1] Call Trace: [ 232.451879][ C1] [ 232.451899][ C1] __schedule+0x1800/0x4a60 [ 232.451966][ C1] ? __pfx___schedule+0x10/0x10 [ 232.452017][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 232.452051][ C1] ? __pfx_lock_release+0x10/0x10 [ 232.452087][ C1] ? kick_pool+0x45c/0x620 [ 232.452131][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 232.452160][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 232.452198][ C1] ? schedule+0x90/0x320 [ 232.452227][ C1] schedule+0x14b/0x320 [ 232.452263][ C1] schedule_preempt_disabled+0x13/0x30 [ 232.452293][ C1] __mutex_lock+0x6a4/0xd70 [ 232.452335][ C1] ? __mutex_lock+0x527/0xd70 [ 232.452373][ C1] ? linkwatch_event+0xe/0x60 [ 232.452404][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 232.452456][ C1] ? get_rtnl_holder+0x144/0x190 [ 232.452485][ C1] ? process_scheduled_works+0x945/0x1830 [ 232.452519][ C1] linkwatch_event+0xe/0x60 [ 232.452543][ C1] process_scheduled_works+0xa2c/0x1830 [ 232.452621][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 232.452672][ C1] ? assign_work+0x364/0x3d0 [ 232.452714][ C1] worker_thread+0x86d/0xd40 [ 232.452763][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 232.452802][ C1] ? __kthread_parkme+0x169/0x1d0 [ 232.452844][ C1] ? __pfx_worker_thread+0x10/0x10 [ 232.452874][ C1] kthread+0x2f0/0x390 [ 232.452908][ C1] ? __pfx_worker_thread+0x10/0x10 [ 232.452940][ C1] ? __pfx_kthread+0x10/0x10 [ 232.452979][ C1] ret_from_fork+0x4b/0x80 [ 232.453014][ C1] ? __pfx_kthread+0x10/0x10 [ 232.453052][ C1] ret_from_fork_asm+0x1a/0x30 [ 232.453110][ C1] [ 232.453121][ C1] DEBUG: waiting rtnl_mutex for 3596 jiffies. [ 232.453137][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 232.453180][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 232.453215][ C1] Call Trace: [ 232.453224][ C1] [ 232.453241][ C1] __schedule+0x1800/0x4a60 [ 232.453310][ C1] ? __pfx___schedule+0x10/0x10 [ 232.453349][ C1] ? __pfx_lock_release+0x10/0x10 [ 232.453384][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 232.453426][ C1] ? kthread_data+0x52/0xd0 [ 232.453453][ C1] ? schedule+0x90/0x320 [ 232.453483][ C1] ? wq_worker_sleeping+0x66/0x240 [ 232.453529][ C1] ? schedule+0x90/0x320 [ 232.453559][ C1] schedule+0x14b/0x320 [ 232.453596][ C1] schedule_preempt_disabled+0x13/0x30 [ 232.453626][ C1] __mutex_lock+0x6a4/0xd70 [ 232.453658][ C1] ? mark_lock+0x9a/0x360 [ 232.453698][ C1] ? __mutex_lock+0x527/0xd70 [ 232.453737][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 232.453774][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 232.453828][ C1] ? get_rtnl_holder+0x144/0x190 [ 232.453863][ C1] addrconf_dad_work+0xd0/0x16f0 [ 232.453914][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 232.453950][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 232.454005][ C1] ? process_scheduled_works+0x945/0x1830 [ 232.454029][ C1] process_scheduled_works+0xa2c/0x1830 [ 232.454083][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 232.454116][ C1] ? assign_work+0x364/0x3d0 [ 232.454145][ C1] worker_thread+0x86d/0xd40 [ 232.454184][ C1] ? __kthread_parkme+0x169/0x1d0 [ 232.454213][ C1] ? __pfx_worker_thread+0x10/0x10 [ 232.454235][ C1] kthread+0x2f0/0x390 [ 232.454260][ C1] ? __pfx_worker_thread+0x10/0x10 [ 232.454281][ C1] ? __pfx_kthread+0x10/0x10 [ 232.454308][ C1] ret_from_fork+0x4b/0x80 [ 232.454331][ C1] ? __pfx_kthread+0x10/0x10 [ 232.454357][ C1] ret_from_fork_asm+0x1a/0x30 [ 232.454399][ C1] [ 232.454407][ C1] DEBUG: holding rtnl_mutex for 3578 jiffies. [ 232.454418][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 232.454450][ C1] Workqueue: netns cleanup_net [ 232.454470][ C1] Call Trace: [ 232.454477][ C1] [ 232.454490][ C1] __schedule+0x1800/0x4a60 [ 232.454542][ C1] ? __pfx___schedule+0x10/0x10 [ 232.454568][ C1] ? __pfx_lock_release+0x10/0x10 [ 232.454589][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 232.454618][ C1] ? kthread_data+0x52/0xd0 [ 232.454642][ C1] ? wq_worker_sleeping+0x66/0x240 [ 232.454668][ C1] ? schedule+0x90/0x320 [ 232.454688][ C1] schedule+0x14b/0x320 [ 232.454712][ C1] synchronize_rcu_expedited+0x684/0x830 [ 232.454745][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 232.454791][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 232.454819][ C1] ? __pfx___might_resched+0x10/0x10 [ 232.454840][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 232.454863][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 232.454887][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 232.454923][ C1] synchronize_rcu+0x11b/0x360 [ 232.454950][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 232.454993][ C1] lockdep_unregister_key+0x556/0x610 [ 232.455021][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 232.455050][ C1] ? rcu_is_watching+0x15/0xb0 [ 232.455075][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 232.455102][ C1] __qdisc_destroy+0x165/0x410 [ 232.455125][ C1] dev_shutdown+0x357/0x440 [ 232.455150][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 232.455197][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 232.455241][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 232.455272][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 232.455304][ C1] default_device_exit_batch+0xa0f/0xa90 [ 232.455343][ C1] ? __pfx___might_resched+0x10/0x10 [ 232.455365][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 232.455403][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 232.455427][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 232.455458][ C1] cleanup_net+0x89d/0xcc0 [ 232.455484][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 232.455522][ C1] ? process_scheduled_works+0x945/0x1830 [ 232.455544][ C1] process_scheduled_works+0xa2c/0x1830 [ 232.455599][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 232.455632][ C1] ? assign_work+0x364/0x3d0 [ 232.455660][ C1] worker_thread+0x86d/0xd40 [ 232.455693][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 232.455719][ C1] ? __kthread_parkme+0x169/0x1d0 [ 232.455747][ C1] ? __pfx_worker_thread+0x10/0x10 [ 232.455769][ C1] kthread+0x2f0/0x390 [ 232.455794][ C1] ? __pfx_worker_thread+0x10/0x10 [ 232.455816][ C1] ? __pfx_kthread+0x10/0x10 [ 232.455842][ C1] ret_from_fork+0x4b/0x80 [ 232.455865][ C1] ? __pfx_kthread+0x10/0x10 [ 232.455891][ C1] ret_from_fork_asm+0x1a/0x30 [ 232.455932][ C1] [ 232.455942][ C1] [ 232.455942][ C1] Showing all locks held in the system: [ 232.455964][ C1] 5 locks held by kworker/u8:3/52: [ 232.455985][ C1] 5 locks held by kworker/u8:5/143: [ 232.455996][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 232.456049][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 232.456099][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 232.456147][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 232.456202][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 232.456302][ C1] 3 locks held by kworker/u8:7/2422: [ 232.456313][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 232.456363][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 232.456414][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 232.456470][ C1] 3 locks held by kworker/u8:11/2871: [ 232.456489][ C1] 2 locks held by getty/4856: [ 232.456500][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 232.456561][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 232.456620][ C1] 3 locks held by kworker/1:3/5150: [ 232.456631][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 232.456681][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 232.456731][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 232.456785][ C1] 1 lock held by syz-executor/6328: [ 232.456809][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 232.456867][ C1] 3 locks held by syz.4.254/6503: [ 232.456878][ C1] 6 locks held by syz.1.256/6510: [ 232.456888][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 232.456935][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 232.456986][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 232.457038][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 232.457084][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 232.457130][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 232.457183][ C1] [ 232.457189][ C1] ============================================= [ 232.457189][ C1] [ 232.772654][ T19] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2627 jiffies s: 7737 root: 0x2/. [ 232.772711][ T19] rcu: blocking rcu_node structures (internal RCU debug): [ 232.772733][ T19] Sending NMI from CPU 0 to CPUs 1: [ 232.772765][ C1] NMI backtrace for cpu 1 [ 232.772788][ C1] CPU: 1 UID: 0 PID: 6510 Comm: syz.1.256 Not tainted 6.10.0-rc6-next-20240703-syzkaller #0 [ 232.772811][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 232.772823][ C1] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x90 [ 232.772859][ C1] Code: 44 0a 20 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 14 25 40 d7 03 00 65 8b 05 10 4f 70 7e a9 00 01 ff 00 74 [ 232.772876][ C1] RSP: 0018:ffffc90000a18998 EFLAGS: 00000246 [ 232.772893][ C1] RAX: ffffffff8b074dde RBX: 0000000000000000 RCX: ffff88802adc1e00 [ 232.772908][ C1] RDX: 0000000000000101 RSI: 0000000000000000 RDI: 0000000000000000 [ 232.772920][ C1] RBP: ffffc90000a18bf0 R08: ffffffff8b074e45 R09: 1ffffffff26020f0 [ 232.772935][ C1] R10: dffffc0000000000 R11: fffffbfff26020f1 R12: 0000000000000000 [ 232.772949][ C1] R13: 0000000000020000 R14: ffff888066ed7cc0 R15: ffff8880639530b0 [ 232.772963][ C1] FS: 00007fa1bd3ff6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 232.772980][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 232.772993][ C1] CR2: 0000000020047030 CR3: 0000000055c14000 CR4: 00000000003506f0 [ 232.773010][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 232.773022][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 232.773035][ C1] Call Trace: [ 232.773042][ C1] [ 232.773050][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 232.773074][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 232.773102][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 232.773122][ C1] ? nmi_handle+0x2a/0x5a0 [ 232.773150][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 232.773173][ C1] ? nmi_handle+0x14f/0x5a0 [ 232.773190][ C1] ? nmi_handle+0x2a/0x5a0 [ 232.773209][ C1] ? __sanitizer_cov_trace_const_cmp4+0x8/0x90 [ 232.773236][ C1] ? default_do_nmi+0x63/0x160 [ 232.773259][ C1] ? exc_nmi+0x123/0x1f0 [ 232.773280][ C1] ? end_repeat_nmi+0xf/0x53 [ 232.773307][ C1] ? ieee80211_rx_list+0x8d5/0x3780 [ 232.773332][ C1] ? ieee80211_rx_list+0x86e/0x3780 [ 232.773358][ C1] ? __sanitizer_cov_trace_const_cmp4+0x8/0x90 [ 232.773386][ C1] ? __sanitizer_cov_trace_const_cmp4+0x8/0x90 [ 232.773414][ C1] ? __sanitizer_cov_trace_const_cmp4+0x8/0x90 [ 232.773448][ C1] [ 232.773454][ C1] [ 232.773461][ C1] ieee80211_rx_list+0x8d5/0x3780 [ 232.773487][ C1] ? __lock_acquire+0x1359/0x2000 [ 232.773519][ C1] ? __pfx_ieee80211_rx_list+0x10/0x10 [ 232.773552][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 232.773579][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 232.773606][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 232.773636][ C1] ? ieee80211_rx_napi+0xd6/0x3c0 [ 232.773660][ C1] ieee80211_rx_napi+0x18a/0x3c0 [ 232.773688][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 232.773713][ C1] ? __pfx_ieee80211_rx_napi+0x10/0x10 [ 232.773743][ C1] ? skb_dequeue+0x113/0x150 [ 232.773773][ C1] ieee80211_handle_queued_frames+0xe7/0x1e0 [ 232.773803][ C1] tasklet_action_common+0x321/0x4d0 [ 232.773833][ C1] ? __pfx_tasklet_action_common+0x10/0x10 [ 232.773863][ C1] ? workqueue_softirq_action+0xce/0x140 [ 232.773891][ C1] handle_softirqs+0x2c4/0x970 [ 232.773916][ C1] ? __irq_exit_rcu+0xf4/0x1c0 [ 232.773940][ C1] ? __pfx_handle_softirqs+0x10/0x10 [ 232.773965][ C1] ? irqtime_account_irq+0xd4/0x1e0 [ 232.773993][ C1] __irq_exit_rcu+0xf4/0x1c0 [ 232.774015][ C1] ? __pfx___irq_exit_rcu+0x10/0x10 [ 232.774043][ C1] irq_exit_rcu+0x9/0x30 [ 232.774063][ C1] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 232.774090][ C1] [ 232.774096][ C1] [ 232.774103][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 232.774126][ C1] RIP: 0010:console_flush_all+0x9f7/0xf50 [ 232.774147][ C1] Code: 20 00 90 0f 0b 90 e9 f3 f9 ff ff e8 43 25 20 00 e8 6e bf 1d 0a 4d 85 f6 74 c0 e8 34 25 20 00 fb 49 bd 00 00 00 00 00 fc ff df <43> 80 3c 2f 00 48 8b 5c 24 30 74 08 48 89 df e8 25 f0 86 00 4c 8b [ 232.774163][ C1] RSP: 0018:ffffc9000c06f280 EFLAGS: 00000246 [ 232.774178][ C1] RAX: ffffffff81735eac RBX: 0000000000000000 RCX: 0000000000040000 [ 232.774190][ C1] RDX: ffffc90009061000 RSI: 000000000003ffff RDI: 0000000000040000 [ 232.774204][ C1] RBP: ffffc9000c06f410 R08: ffffffff81735e53 R09: 1ffffffff26020f0 [ 232.774217][ C1] R10: dffffc0000000000 R11: fffffbfff26020f1 R12: ffffffff8eb2cb40 [ 232.774232][ C1] R13: dffffc0000000000 R14: 0000000000000200 R15: 1ffffffff1d65973 [ 232.774249][ C1] ? console_flush_all+0x993/0xf50 [ 232.774268][ C1] ? console_flush_all+0x9ec/0xf50 [ 232.774296][ C1] ? console_flush_all+0x147/0xf50 [ 232.774318][ C1] ? __pfx_console_flush_all+0x10/0x10 [ 232.774340][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 232.774366][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 232.774395][ C1] console_unlock+0x13b/0x4d0 [ 232.774421][ C1] ? __pfx_console_unlock+0x10/0x10 [ 232.774438][ C1] ? dev_vprintk_emit+0x2ae/0x330 [ 232.774464][ C1] ? dev_vprintk_emit+0x2ae/0x330 [ 232.774489][ C1] ? __pfx___down_trylock_console_sem+0x10/0x10 [ 232.774512][ C1] ? __pfx_vsnprintf+0x10/0x10 [ 232.774536][ C1] vprintk_emit+0x7a1/0x900 [ 232.774558][ C1] ? __pfx_vprintk_emit+0x10/0x10 [ 232.774576][ C1] ? __pfx_snprintf+0x10/0x10 [ 232.774599][ C1] ? read_word_at_a_time+0xe/0x20 [ 232.774627][ C1] ? sized_strscpy+0x8d/0x220 [ 232.774657][ C1] dev_vprintk_emit+0x2ae/0x330 [ 232.774685][ C1] ? __pfx_dev_vprintk_emit+0x10/0x10 [ 232.774720][ C1] dev_printk_emit+0xdd/0x120 [ 232.774746][ C1] ? __pfx_lock_release+0x10/0x10 [ 232.774773][ C1] ? __pfx_dev_printk_emit+0x10/0x10 [ 232.774798][ C1] ? trace_contention_end+0x3c/0x120 [ 232.774817][ C1] ? __mutex_lock+0x2ef/0xd70 [ 232.774845][ C1] ? __dev_printk+0x137/0x1a0 [ 232.774870][ C1] _dev_warn+0x122/0x170 [ 232.774896][ C1] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 232.774922][ C1] ? up_write+0x1a9/0x590 [ 232.774940][ C1] ? __pfx__dev_warn+0x10/0x10 [ 232.774966][ C1] ? __pfx_up_write+0x10/0x10 [ 232.774988][ C1] ? sock_shutdown+0x1d8/0x280 [ 232.775017][ C1] nbd_config_put+0x387/0x7e0 [ 232.775047][ C1] ? __pfx_nbd_release+0x10/0x10 [ 232.775073][ C1] nbd_release+0x10b/0x130 [ 232.775100][ C1] bdev_release+0x5e3/0x700 [ 232.775127][ C1] blkdev_release+0x15/0x20 [ 232.775148][ C1] ? __pfx_blkdev_release+0x10/0x10 [ 232.775168][ C1] __fput+0x24a/0x8a0 [ 232.775201][ C1] task_work_run+0x24f/0x310 [ 232.775222][ C1] ? __pfx_task_work_run+0x10/0x10 [ 232.775246][ C1] get_signal+0x15e6/0x1740 [ 232.775277][ C1] ? __pfx_get_signal+0x10/0x10 [ 232.775303][ C1] arch_do_signal_or_restart+0x96/0x860 [ 232.775330][ C1] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 232.775353][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 232.775386][ C1] ? syscall_exit_to_user_mode+0xa3/0x370 [ 232.775422][ C1] syscall_exit_to_user_mode+0xc9/0x370 [ 232.775453][ C1] do_syscall_64+0x100/0x230 [ 232.775471][ C1] ? clear_bhb_loop+0x35/0x90 [ 232.775495][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 232.775517][ C1] RIP: 0033:0x7fa1bd975bd9 [ 232.775533][ C1] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 232.775549][ C1] RSP: 002b:00007fa1bd3ff048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 232.775568][ C1] RAX: 0000000000000000 RBX: 00007fa1bdb03f60 RCX: 00007fa1bd975bd9 [ 232.775581][ C1] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000004 [ 232.775593][ C1] RBP: 00007fa1bd9e4aa1 R08: 0000000000000000 R09: 0000000000000000 [ 232.775605][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 232.775617][ C1] R13: 000000000000000b R14: 00007fa1bdb03f60 R15: 00007fff8a5eef38 [ 232.775640][ C1] [ 233.500378][ C1] DEBUG: waiting rtnl_mutex for 3688 jiffies. [ 233.500411][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 233.500446][ C1] Call Trace: [ 233.500454][ C1] [ 233.500469][ C1] __schedule+0x1800/0x4a60 [ 233.500523][ C1] ? __pfx___schedule+0x10/0x10 [ 233.500549][ C1] ? __pfx_lock_release+0x10/0x10 [ 233.500575][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 233.500615][ C1] ? schedule+0x90/0x320 [ 233.500636][ C1] schedule+0x14b/0x320 [ 233.500662][ C1] schedule_preempt_disabled+0x13/0x30 [ 233.500683][ C1] __mutex_lock+0x6a4/0xd70 [ 233.500712][ C1] ? __mutex_lock+0x527/0xd70 [ 233.500738][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 233.500767][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 233.500804][ C1] ? get_rtnl_holder+0x144/0x190 [ 233.500827][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 233.500858][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 233.500888][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 233.500912][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 233.500946][ C1] ? __pfx_validate_chain+0x10/0x10 [ 233.500973][ C1] ? __pfx_validate_chain+0x10/0x10 [ 233.501001][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 233.501031][ C1] ? mark_lock+0x9a/0x360 [ 233.501054][ C1] ? __pfx_validate_chain+0x10/0x10 [ 233.501084][ C1] ? __lock_acquire+0x1359/0x2000 [ 233.501124][ C1] ? mark_lock+0x9a/0x360 [ 233.501153][ C1] ? __lock_acquire+0x1359/0x2000 [ 233.501200][ C1] netlink_rcv_skb+0x1e3/0x430 [ 233.501229][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 233.501258][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 233.501312][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 233.501333][ C1] netlink_unicast+0x7f0/0x990 [ 233.501368][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 233.501397][ C1] ? __virt_addr_valid+0x183/0x530 [ 233.501427][ C1] ? __check_object_size+0x49c/0x900 [ 233.501449][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 233.501476][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 233.501509][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 233.501526][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 233.501552][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 233.501575][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 233.501599][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 233.501627][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 233.501646][ C1] __sock_sendmsg+0x221/0x270 [ 233.501677][ C1] __sys_sendto+0x3a4/0x4f0 [ 233.501705][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 233.501755][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 233.501782][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 233.501813][ C1] __x64_sys_sendto+0xde/0x100 [ 233.501838][ C1] do_syscall_64+0xf3/0x230 [ 233.501856][ C1] ? clear_bhb_loop+0x35/0x90 [ 233.501883][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 233.501904][ C1] RIP: 0033:0x7f87c977796c [ 233.501930][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 233.501950][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 233.501965][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 233.501977][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 233.501990][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 233.502002][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 233.502032][ C1] [ 233.502041][ C1] DEBUG: waiting rtnl_mutex for 3586 jiffies. [ 233.502051][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 233.502081][ C1] Workqueue: events linkwatch_event [ 233.502102][ C1] Call Trace: [ 233.502110][ C1] [ 233.502123][ C1] __schedule+0x1800/0x4a60 [ 233.502169][ C1] ? __pfx___schedule+0x10/0x10 [ 233.502192][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 233.502229][ C1] ? __pfx_lock_release+0x10/0x10 [ 233.502254][ C1] ? kick_pool+0x45c/0x620 [ 233.502284][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 233.502305][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 233.502331][ C1] ? schedule+0x90/0x320 [ 233.502351][ C1] schedule+0x14b/0x320 [ 233.502376][ C1] schedule_preempt_disabled+0x13/0x30 [ 233.502401][ C1] __mutex_lock+0x6a4/0xd70 [ 233.502429][ C1] ? __mutex_lock+0x527/0xd70 [ 233.502455][ C1] ? linkwatch_event+0xe/0x60 [ 233.502476][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 233.502511][ C1] ? get_rtnl_holder+0x144/0x190 [ 233.502532][ C1] ? process_scheduled_works+0x945/0x1830 [ 233.502554][ C1] linkwatch_event+0xe/0x60 [ 233.502572][ C1] process_scheduled_works+0xa2c/0x1830 [ 233.502625][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 233.502658][ C1] ? assign_work+0x364/0x3d0 [ 233.502687][ C1] worker_thread+0x86d/0xd40 [ 233.502720][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 233.502746][ C1] ? __kthread_parkme+0x169/0x1d0 [ 233.502774][ C1] ? __pfx_worker_thread+0x10/0x10 [ 233.502797][ C1] kthread+0x2f0/0x390 [ 233.502822][ C1] ? __pfx_worker_thread+0x10/0x10 [ 233.502843][ C1] ? __pfx_kthread+0x10/0x10 [ 233.502869][ C1] ret_from_fork+0x4b/0x80 [ 233.502893][ C1] ? __pfx_kthread+0x10/0x10 [ 233.502919][ C1] ret_from_fork_asm+0x1a/0x30 [ 233.502962][ C1] [ 233.502970][ C1] DEBUG: waiting rtnl_mutex for 3701 jiffies. [ 233.502980][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 233.503010][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 233.503033][ C1] Call Trace: [ 233.503041][ C1] [ 233.503053][ C1] __schedule+0x1800/0x4a60 [ 233.503100][ C1] ? __pfx___schedule+0x10/0x10 [ 233.503125][ C1] ? __pfx_lock_release+0x10/0x10 [ 233.503150][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 233.503179][ C1] ? kthread_data+0x52/0xd0 [ 233.503201][ C1] ? schedule+0x90/0x320 [ 233.503221][ C1] ? wq_worker_sleeping+0x66/0x240 [ 233.503247][ C1] ? schedule+0x90/0x320 [ 233.503267][ C1] schedule+0x14b/0x320 [ 233.503291][ C1] schedule_preempt_disabled+0x13/0x30 [ 233.503312][ C1] __mutex_lock+0x6a4/0xd70 [ 233.503334][ C1] ? mark_lock+0x9a/0x360 [ 233.503361][ C1] ? __mutex_lock+0x527/0xd70 [ 233.503392][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 233.503417][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 233.503453][ C1] ? get_rtnl_holder+0x144/0x190 [ 233.503476][ C1] addrconf_dad_work+0xd0/0x16f0 [ 233.503510][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 233.503534][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 233.503571][ C1] ? process_scheduled_works+0x945/0x1830 [ 233.503593][ C1] process_scheduled_works+0xa2c/0x1830 [ 233.503646][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 233.503679][ C1] ? assign_work+0x364/0x3d0 [ 233.503707][ C1] worker_thread+0x86d/0xd40 [ 233.503746][ C1] ? __kthread_parkme+0x169/0x1d0 [ 233.503774][ C1] ? __pfx_worker_thread+0x10/0x10 [ 233.503797][ C1] kthread+0x2f0/0x390 [ 233.503821][ C1] ? __pfx_worker_thread+0x10/0x10 [ 233.503843][ C1] ? __pfx_kthread+0x10/0x10 [ 233.503869][ C1] ret_from_fork+0x4b/0x80 [ 233.503892][ C1] ? __pfx_kthread+0x10/0x10 [ 233.503917][ C1] ret_from_fork_asm+0x1a/0x30 [ 233.503959][ C1] [ 233.503967][ C1] DEBUG: holding rtnl_mutex for 3683 jiffies. [ 233.503976][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 233.504005][ C1] Workqueue: netns cleanup_net [ 233.504023][ C1] Call Trace: [ 233.504030][ C1] [ 233.504043][ C1] __schedule+0x1800/0x4a60 [ 233.504089][ C1] ? __pfx___schedule+0x10/0x10 [ 233.504115][ C1] ? __pfx_lock_release+0x10/0x10 [ 233.504136][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 233.504164][ C1] ? kthread_data+0x52/0xd0 [ 233.504188][ C1] ? wq_worker_sleeping+0x66/0x240 [ 233.504214][ C1] ? schedule+0x90/0x320 [ 233.504234][ C1] schedule+0x14b/0x320 [ 233.504258][ C1] synchronize_rcu_expedited+0x684/0x830 [ 233.504291][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 233.504337][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 233.504364][ C1] ? __pfx___might_resched+0x10/0x10 [ 233.504389][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 233.504413][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 233.504436][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 233.504472][ C1] synchronize_rcu+0x11b/0x360 [ 233.504498][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 233.504540][ C1] lockdep_unregister_key+0x556/0x610 [ 233.504568][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 233.504597][ C1] ? rcu_is_watching+0x15/0xb0 [ 233.504622][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 233.504648][ C1] __qdisc_destroy+0x165/0x410 [ 233.504671][ C1] dev_shutdown+0x357/0x440 [ 233.504695][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 233.504741][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 233.504785][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 233.504816][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 233.504847][ C1] default_device_exit_batch+0xa0f/0xa90 [ 233.504891][ C1] ? __pfx___might_resched+0x10/0x10 [ 233.504913][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 233.504951][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 233.504975][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 233.505005][ C1] cleanup_net+0x89d/0xcc0 [ 233.505031][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 233.505064][ C1] ? process_scheduled_works+0x945/0x1830 [ 233.505085][ C1] process_scheduled_works+0xa2c/0x1830 [ 233.505138][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 233.505171][ C1] ? assign_work+0x364/0x3d0 [ 233.505199][ C1] worker_thread+0x86d/0xd40 [ 233.505231][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 233.505257][ C1] ? __kthread_parkme+0x169/0x1d0 [ 233.505285][ C1] ? __pfx_worker_thread+0x10/0x10 [ 233.505308][ C1] kthread+0x2f0/0x390 [ 233.505333][ C1] ? __pfx_worker_thread+0x10/0x10 [ 233.505354][ C1] ? __pfx_kthread+0x10/0x10 [ 233.505380][ C1] ret_from_fork+0x4b/0x80 [ 233.505433][ C1] ? __pfx_kthread+0x10/0x10 [ 233.505458][ C1] ret_from_fork_asm+0x1a/0x30 [ 233.505500][ C1] [ 233.505509][ C1] [ 233.505509][ C1] Showing all locks held in the system: [ 233.505525][ C1] 5 locks held by kworker/u8:3/52: [ 233.505542][ C1] 5 locks held by kworker/u8:5/143: [ 233.505552][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 233.505604][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 233.505659][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 233.505705][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 233.505759][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 233.505835][ C1] 3 locks held by kworker/u8:7/2422: [ 233.505846][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 233.505896][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 233.505947][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 233.506000][ C1] 3 locks held by kworker/u8:11/2871: [ 233.506013][ C1] 2 locks held by getty/4856: [ 233.506024][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 233.506077][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 233.506131][ C1] 3 locks held by kworker/1:3/5150: [ 233.506141][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 233.506191][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 233.506240][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 233.506291][ C1] 1 lock held by syz-executor/6328: [ 233.506302][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 233.506357][ C1] 3 locks held by syz.4.254/6503: [ 233.506369][ C1] 6 locks held by syz.1.256/6510: [ 233.506379][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 233.506433][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 233.506484][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 233.506536][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 233.506583][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 233.506628][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 233.506683][ C1] [ 233.506689][ C1] ============================================= [ 233.506689][ C1] [ 234.534807][ C1] DEBUG: waiting rtnl_mutex for 3791 jiffies. [ 234.534828][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 234.534863][ C1] Call Trace: [ 234.534871][ C1] [ 234.534887][ C1] __schedule+0x1800/0x4a60 [ 234.534941][ C1] ? __pfx___schedule+0x10/0x10 [ 234.534967][ C1] ? __pfx_lock_release+0x10/0x10 [ 234.534993][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 234.535034][ C1] ? schedule+0x90/0x320 [ 234.535054][ C1] schedule+0x14b/0x320 [ 234.535078][ C1] schedule_preempt_disabled+0x13/0x30 [ 234.535100][ C1] __mutex_lock+0x6a4/0xd70 [ 234.535128][ C1] ? __mutex_lock+0x527/0xd70 [ 234.535154][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 234.535184][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 234.535221][ C1] ? get_rtnl_holder+0x144/0x190 [ 234.535243][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 234.535274][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 234.535304][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 234.535328][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 234.535371][ C1] ? __pfx_validate_chain+0x10/0x10 [ 234.535399][ C1] ? __pfx_validate_chain+0x10/0x10 [ 234.535427][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 234.535457][ C1] ? mark_lock+0x9a/0x360 [ 234.535479][ C1] ? __pfx_validate_chain+0x10/0x10 [ 234.535509][ C1] ? __lock_acquire+0x1359/0x2000 [ 234.535550][ C1] ? mark_lock+0x9a/0x360 [ 234.535579][ C1] ? __lock_acquire+0x1359/0x2000 [ 234.535625][ C1] netlink_rcv_skb+0x1e3/0x430 [ 234.535655][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 234.535684][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 234.535737][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 234.535758][ C1] netlink_unicast+0x7f0/0x990 [ 234.535795][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 234.535818][ C1] ? __virt_addr_valid+0x183/0x530 [ 234.535847][ C1] ? __check_object_size+0x49c/0x900 [ 234.535870][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 234.535897][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 234.535931][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 234.535947][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 234.535973][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 234.535997][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 234.536022][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 234.536050][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 234.536067][ C1] __sock_sendmsg+0x221/0x270 [ 234.536098][ C1] __sys_sendto+0x3a4/0x4f0 [ 234.536126][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 234.536176][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 234.536203][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 234.536233][ C1] __x64_sys_sendto+0xde/0x100 [ 234.536258][ C1] do_syscall_64+0xf3/0x230 [ 234.536276][ C1] ? clear_bhb_loop+0x35/0x90 [ 234.536302][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 234.536324][ C1] RIP: 0033:0x7f87c977796c [ 234.536355][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 234.536375][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 234.536389][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 234.536402][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 234.536414][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 234.536426][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 234.536457][ C1] [ 234.536465][ C1] DEBUG: waiting rtnl_mutex for 3689 jiffies. [ 234.536475][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 234.536508][ C1] Workqueue: events linkwatch_event [ 234.536528][ C1] Call Trace: [ 234.536535][ C1] [ 234.536549][ C1] __schedule+0x1800/0x4a60 [ 234.536595][ C1] ? __pfx___schedule+0x10/0x10 [ 234.536618][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 234.536641][ C1] ? __pfx_lock_release+0x10/0x10 [ 234.536666][ C1] ? kick_pool+0x45c/0x620 [ 234.536696][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 234.536717][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 234.536743][ C1] ? schedule+0x90/0x320 [ 234.536763][ C1] schedule+0x14b/0x320 [ 234.536787][ C1] schedule_preempt_disabled+0x13/0x30 [ 234.536808][ C1] __mutex_lock+0x6a4/0xd70 [ 234.536845][ C1] ? __mutex_lock+0x527/0xd70 [ 234.536875][ C1] ? linkwatch_event+0xe/0x60 [ 234.536896][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 234.536931][ C1] ? get_rtnl_holder+0x144/0x190 [ 234.536952][ C1] ? process_scheduled_works+0x945/0x1830 [ 234.536974][ C1] linkwatch_event+0xe/0x60 [ 234.536991][ C1] process_scheduled_works+0xa2c/0x1830 [ 234.537046][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 234.537078][ C1] ? assign_work+0x364/0x3d0 [ 234.537107][ C1] worker_thread+0x86d/0xd40 [ 234.537140][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 234.537166][ C1] ? __kthread_parkme+0x169/0x1d0 [ 234.537194][ C1] ? __pfx_worker_thread+0x10/0x10 [ 234.537217][ C1] kthread+0x2f0/0x390 [ 234.537242][ C1] ? __pfx_worker_thread+0x10/0x10 [ 234.537265][ C1] ? __pfx_kthread+0x10/0x10 [ 234.537292][ C1] ret_from_fork+0x4b/0x80 [ 234.537316][ C1] ? __pfx_kthread+0x10/0x10 [ 234.537341][ C1] ret_from_fork_asm+0x1a/0x30 [ 234.537389][ C1] [ 234.537397][ C1] DEBUG: waiting rtnl_mutex for 3804 jiffies. [ 234.537407][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 234.537436][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 234.537460][ C1] Call Trace: [ 234.537467][ C1] [ 234.537480][ C1] __schedule+0x1800/0x4a60 [ 234.537527][ C1] ? __pfx___schedule+0x10/0x10 [ 234.537553][ C1] ? __pfx_lock_release+0x10/0x10 [ 234.537577][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 234.537606][ C1] ? kthread_data+0x52/0xd0 [ 234.537628][ C1] ? schedule+0x90/0x320 [ 234.537648][ C1] ? wq_worker_sleeping+0x66/0x240 [ 234.537674][ C1] ? schedule+0x90/0x320 [ 234.537693][ C1] schedule+0x14b/0x320 [ 234.537718][ C1] schedule_preempt_disabled+0x13/0x30 [ 234.537738][ C1] __mutex_lock+0x6a4/0xd70 [ 234.537760][ C1] ? mark_lock+0x9a/0x360 [ 234.537788][ C1] ? __mutex_lock+0x527/0xd70 [ 234.537813][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 234.537838][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 234.537874][ C1] ? get_rtnl_holder+0x144/0x190 [ 234.537897][ C1] addrconf_dad_work+0xd0/0x16f0 [ 234.537931][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 234.537955][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 234.537993][ C1] ? process_scheduled_works+0x945/0x1830 [ 234.538014][ C1] process_scheduled_works+0xa2c/0x1830 [ 234.538067][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 234.538100][ C1] ? assign_work+0x364/0x3d0 [ 234.538128][ C1] worker_thread+0x86d/0xd40 [ 234.538167][ C1] ? __kthread_parkme+0x169/0x1d0 [ 234.538195][ C1] ? __pfx_worker_thread+0x10/0x10 [ 234.538217][ C1] kthread+0x2f0/0x390 [ 234.538242][ C1] ? __pfx_worker_thread+0x10/0x10 [ 234.538264][ C1] ? __pfx_kthread+0x10/0x10 [ 234.538290][ C1] ret_from_fork+0x4b/0x80 [ 234.538312][ C1] ? __pfx_kthread+0x10/0x10 [ 234.538338][ C1] ret_from_fork_asm+0x1a/0x30 [ 234.538384][ C1] [ 234.538392][ C1] DEBUG: holding rtnl_mutex for 3786 jiffies. [ 234.538402][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 234.538430][ C1] Workqueue: netns cleanup_net [ 234.538449][ C1] Call Trace: [ 234.538456][ C1] [ 234.538469][ C1] __schedule+0x1800/0x4a60 [ 234.538515][ C1] ? __pfx___schedule+0x10/0x10 [ 234.538541][ C1] ? __pfx_lock_release+0x10/0x10 [ 234.538562][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 234.538589][ C1] ? kthread_data+0x52/0xd0 [ 234.538614][ C1] ? wq_worker_sleeping+0x66/0x240 [ 234.538639][ C1] ? schedule+0x90/0x320 [ 234.538659][ C1] schedule+0x14b/0x320 [ 234.538683][ C1] synchronize_rcu_expedited+0x684/0x830 [ 234.538716][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 234.538761][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 234.538789][ C1] ? __pfx___might_resched+0x10/0x10 [ 234.538808][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 234.538832][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 234.538855][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 234.538891][ C1] synchronize_rcu+0x11b/0x360 [ 234.538917][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 234.538959][ C1] lockdep_unregister_key+0x556/0x610 [ 234.538988][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 234.539015][ C1] ? rcu_is_watching+0x15/0xb0 [ 234.539041][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 234.539066][ C1] __qdisc_destroy+0x165/0x410 [ 234.539089][ C1] dev_shutdown+0x357/0x440 [ 234.539113][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 234.539159][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 234.539202][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 234.539234][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 234.539264][ C1] default_device_exit_batch+0xa0f/0xa90 [ 234.539302][ C1] ? __pfx___might_resched+0x10/0x10 [ 234.539325][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 234.539366][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 234.539390][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 234.539420][ C1] cleanup_net+0x89d/0xcc0 [ 234.539447][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 234.539479][ C1] ? process_scheduled_works+0x945/0x1830 [ 234.539500][ C1] process_scheduled_works+0xa2c/0x1830 [ 234.539554][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 234.539586][ C1] ? assign_work+0x364/0x3d0 [ 234.539614][ C1] worker_thread+0x86d/0xd40 [ 234.539646][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 234.539672][ C1] ? __kthread_parkme+0x169/0x1d0 [ 234.539700][ C1] ? __pfx_worker_thread+0x10/0x10 [ 234.539723][ C1] kthread+0x2f0/0x390 [ 234.539803][ C1] ? __pfx_worker_thread+0x10/0x10 [ 234.539833][ C1] ? __pfx_kthread+0x10/0x10 [ 234.539860][ C1] ret_from_fork+0x4b/0x80 [ 234.539882][ C1] ? __pfx_kthread+0x10/0x10 [ 234.539908][ C1] ret_from_fork_asm+0x1a/0x30 [ 234.539949][ C1] [ 234.539959][ C1] [ 234.539959][ C1] Showing all locks held in the system: [ 234.539974][ C1] 5 locks held by kworker/u8:3/52: [ 234.539990][ C1] 5 locks held by kworker/u8:5/143: [ 234.540001][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 234.540054][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 234.540104][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 234.540150][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 234.540205][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 234.540277][ C1] 3 locks held by kworker/u8:7/2422: [ 234.540288][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 234.540338][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 234.540395][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 234.540448][ C1] 3 locks held by kworker/u8:11/2871: [ 234.540462][ C1] 2 locks held by getty/4856: [ 234.540473][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 234.540527][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 234.540580][ C1] 3 locks held by kworker/1:3/5150: [ 234.540591][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 234.540640][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 234.540690][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 234.540741][ C1] 1 lock held by syz-executor/6328: [ 234.540752][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 234.540807][ C1] 3 locks held by syz.4.254/6503: [ 234.540818][ C1] 6 locks held by syz.1.256/6510: [ 234.540829][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 234.540876][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 234.540926][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 234.540978][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 234.541025][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 234.541070][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 234.541123][ C1] [ 234.541129][ C1] ============================================= [ 234.541129][ C1] [ 235.570515][ C1] DEBUG: waiting rtnl_mutex for 3895 jiffies. [ 235.570537][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 235.570572][ C1] Call Trace: [ 235.570581][ C1] [ 235.570596][ C1] __schedule+0x1800/0x4a60 [ 235.570651][ C1] ? __pfx___schedule+0x10/0x10 [ 235.570677][ C1] ? __pfx_lock_release+0x10/0x10 [ 235.570703][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 235.570743][ C1] ? schedule+0x90/0x320 [ 235.570763][ C1] schedule+0x14b/0x320 [ 235.570788][ C1] schedule_preempt_disabled+0x13/0x30 [ 235.570810][ C1] __mutex_lock+0x6a4/0xd70 [ 235.570838][ C1] ? __mutex_lock+0x527/0xd70 [ 235.570865][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 235.570894][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 235.570931][ C1] ? get_rtnl_holder+0x144/0x190 [ 235.570954][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 235.570985][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 235.571015][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 235.571039][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 235.571074][ C1] ? __pfx_validate_chain+0x10/0x10 [ 235.571101][ C1] ? __pfx_validate_chain+0x10/0x10 [ 235.571129][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 235.571160][ C1] ? mark_lock+0x9a/0x360 [ 235.571182][ C1] ? __pfx_validate_chain+0x10/0x10 [ 235.571212][ C1] ? __lock_acquire+0x1359/0x2000 [ 235.571253][ C1] ? mark_lock+0x9a/0x360 [ 235.571295][ C1] ? __lock_acquire+0x1359/0x2000 [ 235.571342][ C1] netlink_rcv_skb+0x1e3/0x430 [ 235.571371][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 235.571400][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 235.571454][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 235.571476][ C1] netlink_unicast+0x7f0/0x990 [ 235.571514][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 235.571537][ C1] ? __virt_addr_valid+0x183/0x530 [ 235.571567][ C1] ? __check_object_size+0x49c/0x900 [ 235.571590][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 235.571618][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 235.571650][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 235.571667][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 235.571693][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 235.571717][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 235.571741][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 235.571769][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 235.571786][ C1] __sock_sendmsg+0x221/0x270 [ 235.571817][ C1] __sys_sendto+0x3a4/0x4f0 [ 235.571845][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 235.571894][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 235.571921][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 235.571952][ C1] __x64_sys_sendto+0xde/0x100 [ 235.571977][ C1] do_syscall_64+0xf3/0x230 [ 235.571995][ C1] ? clear_bhb_loop+0x35/0x90 [ 235.572021][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 235.572042][ C1] RIP: 0033:0x7f87c977796c [ 235.572067][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 235.572088][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 235.572102][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 235.572114][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 235.572127][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 235.572139][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 235.572169][ C1] [ 235.572178][ C1] DEBUG: waiting rtnl_mutex for 3793 jiffies. [ 235.572188][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 235.572219][ C1] Workqueue: events linkwatch_event [ 235.572240][ C1] Call Trace: [ 235.572247][ C1] [ 235.572266][ C1] __schedule+0x1800/0x4a60 [ 235.572312][ C1] ? __pfx___schedule+0x10/0x10 [ 235.572335][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 235.572359][ C1] ? __pfx_lock_release+0x10/0x10 [ 235.572383][ C1] ? kick_pool+0x45c/0x620 [ 235.572413][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 235.572433][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 235.572459][ C1] ? schedule+0x90/0x320 [ 235.572479][ C1] schedule+0x14b/0x320 [ 235.572503][ C1] schedule_preempt_disabled+0x13/0x30 [ 235.572524][ C1] __mutex_lock+0x6a4/0xd70 [ 235.572552][ C1] ? __mutex_lock+0x527/0xd70 [ 235.572579][ C1] ? linkwatch_event+0xe/0x60 [ 235.572599][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 235.572634][ C1] ? get_rtnl_holder+0x144/0x190 [ 235.572655][ C1] ? process_scheduled_works+0x945/0x1830 [ 235.572677][ C1] linkwatch_event+0xe/0x60 [ 235.572694][ C1] process_scheduled_works+0xa2c/0x1830 [ 235.572748][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 235.572785][ C1] ? assign_work+0x364/0x3d0 [ 235.572814][ C1] worker_thread+0x86d/0xd40 [ 235.572846][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 235.572873][ C1] ? __kthread_parkme+0x169/0x1d0 [ 235.572901][ C1] ? __pfx_worker_thread+0x10/0x10 [ 235.572923][ C1] kthread+0x2f0/0x390 [ 235.572948][ C1] ? __pfx_worker_thread+0x10/0x10 [ 235.572970][ C1] ? __pfx_kthread+0x10/0x10 [ 235.572996][ C1] ret_from_fork+0x4b/0x80 [ 235.573020][ C1] ? __pfx_kthread+0x10/0x10 [ 235.573050][ C1] ret_from_fork_asm+0x1a/0x30 [ 235.573094][ C1] [ 235.573101][ C1] DEBUG: waiting rtnl_mutex for 3908 jiffies. [ 235.573111][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 235.573146][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 235.573170][ C1] Call Trace: [ 235.573178][ C1] [ 235.573190][ C1] __schedule+0x1800/0x4a60 [ 235.573237][ C1] ? __pfx___schedule+0x10/0x10 [ 235.573268][ C1] ? __pfx_lock_release+0x10/0x10 [ 235.573293][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 235.573322][ C1] ? kthread_data+0x52/0xd0 [ 235.573344][ C1] ? schedule+0x90/0x320 [ 235.573364][ C1] ? wq_worker_sleeping+0x66/0x240 [ 235.573390][ C1] ? schedule+0x90/0x320 [ 235.573410][ C1] schedule+0x14b/0x320 [ 235.573437][ C1] schedule_preempt_disabled+0x13/0x30 [ 235.573458][ C1] __mutex_lock+0x6a4/0xd70 [ 235.573481][ C1] ? mark_lock+0x9a/0x360 [ 235.573508][ C1] ? __mutex_lock+0x527/0xd70 [ 235.573534][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 235.573559][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 235.573595][ C1] ? get_rtnl_holder+0x144/0x190 [ 235.573618][ C1] addrconf_dad_work+0xd0/0x16f0 [ 235.573652][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 235.573676][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 235.573714][ C1] ? process_scheduled_works+0x945/0x1830 [ 235.573735][ C1] process_scheduled_works+0xa2c/0x1830 [ 235.573789][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 235.573822][ C1] ? assign_work+0x364/0x3d0 [ 235.573850][ C1] worker_thread+0x86d/0xd40 [ 235.573891][ C1] ? __kthread_parkme+0x169/0x1d0 [ 235.573922][ C1] ? __pfx_worker_thread+0x10/0x10 [ 235.573945][ C1] kthread+0x2f0/0x390 [ 235.573970][ C1] ? __pfx_worker_thread+0x10/0x10 [ 235.573991][ C1] ? __pfx_kthread+0x10/0x10 [ 235.574020][ C1] ret_from_fork+0x4b/0x80 [ 235.574043][ C1] ? __pfx_kthread+0x10/0x10 [ 235.574068][ C1] ret_from_fork_asm+0x1a/0x30 [ 235.574110][ C1] [ 235.574118][ C1] DEBUG: holding rtnl_mutex for 3890 jiffies. [ 235.574130][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 235.574162][ C1] Workqueue: netns cleanup_net [ 235.574181][ C1] Call Trace: [ 235.574188][ C1] [ 235.574201][ C1] __schedule+0x1800/0x4a60 [ 235.574250][ C1] ? __pfx___schedule+0x10/0x10 [ 235.574281][ C1] ? __pfx_lock_release+0x10/0x10 [ 235.574303][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 235.574330][ C1] ? kthread_data+0x52/0xd0 [ 235.574355][ C1] ? wq_worker_sleeping+0x66/0x240 [ 235.574380][ C1] ? schedule+0x90/0x320 [ 235.574401][ C1] schedule+0x14b/0x320 [ 235.574425][ C1] synchronize_rcu_expedited+0x684/0x830 [ 235.574458][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 235.574503][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 235.574534][ C1] ? __pfx___might_resched+0x10/0x10 [ 235.574555][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 235.574578][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 235.574601][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 235.574640][ C1] synchronize_rcu+0x11b/0x360 [ 235.574666][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 235.574710][ C1] lockdep_unregister_key+0x556/0x610 [ 235.574742][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 235.574770][ C1] ? rcu_is_watching+0x15/0xb0 [ 235.574796][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 235.574821][ C1] __qdisc_destroy+0x165/0x410 [ 235.574844][ C1] dev_shutdown+0x357/0x440 [ 235.574868][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 235.574916][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 235.574964][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 235.574995][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 235.575025][ C1] default_device_exit_batch+0xa0f/0xa90 [ 235.575064][ C1] ? __pfx___might_resched+0x10/0x10 [ 235.575087][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 235.575124][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 235.575148][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 235.575178][ C1] cleanup_net+0x89d/0xcc0 [ 235.575204][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 235.575237][ C1] ? process_scheduled_works+0x945/0x1830 [ 235.575263][ C1] process_scheduled_works+0xa2c/0x1830 [ 235.575316][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 235.575349][ C1] ? assign_work+0x364/0x3d0 [ 235.575377][ C1] worker_thread+0x86d/0xd40 [ 235.575409][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 235.575435][ C1] ? __kthread_parkme+0x169/0x1d0 [ 235.575463][ C1] ? __pfx_worker_thread+0x10/0x10 [ 235.575486][ C1] kthread+0x2f0/0x390 [ 235.575512][ C1] ? __pfx_worker_thread+0x10/0x10 [ 235.575534][ C1] ? __pfx_kthread+0x10/0x10 [ 235.575560][ C1] ret_from_fork+0x4b/0x80 [ 235.575582][ C1] ? __pfx_kthread+0x10/0x10 [ 235.575608][ C1] ret_from_fork_asm+0x1a/0x30 [ 235.575650][ C1] [ 235.575659][ C1] [ 235.575659][ C1] Showing all locks held in the system: [ 235.575676][ C1] 5 locks held by kworker/u8:3/52: [ 235.575693][ C1] 5 locks held by kworker/u8:5/143: [ 235.575703][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 235.575756][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 235.575805][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 235.575851][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 235.575906][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 235.575979][ C1] 3 locks held by kworker/u8:7/2422: [ 235.575991][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 235.576041][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 235.576091][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 235.576143][ C1] 3 locks held by kworker/u8:11/2871: [ 235.576158][ C1] 2 locks held by getty/4856: [ 235.576168][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 235.576221][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 235.576279][ C1] 3 locks held by kworker/1:3/5150: [ 235.576290][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 235.576340][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 235.576389][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 235.576440][ C1] 1 lock held by syz-executor/6328: [ 235.576451][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 235.576507][ C1] 3 locks held by syz.4.254/6503: [ 235.576519][ C1] 6 locks held by syz.1.256/6510: [ 235.576530][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 235.576577][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 235.576627][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 235.576678][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 235.576726][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 235.576771][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 235.576824][ C1] [ 235.576830][ C1] ============================================= [ 235.576830][ C1] [ 236.615730][ C1] DEBUG: waiting rtnl_mutex for 3999 jiffies. [ 236.615753][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 236.615788][ C1] Call Trace: [ 236.615796][ C1] [ 236.615810][ C1] __schedule+0x1800/0x4a60 [ 236.615863][ C1] ? __pfx___schedule+0x10/0x10 [ 236.615889][ C1] ? __pfx_lock_release+0x10/0x10 [ 236.615914][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 236.615954][ C1] ? schedule+0x90/0x320 [ 236.615974][ C1] schedule+0x14b/0x320 [ 236.615999][ C1] schedule_preempt_disabled+0x13/0x30 [ 236.616020][ C1] __mutex_lock+0x6a4/0xd70 [ 236.616048][ C1] ? __mutex_lock+0x527/0xd70 [ 236.616075][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 236.616103][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 236.616141][ C1] ? get_rtnl_holder+0x144/0x190 [ 236.616163][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 236.616205][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 236.616235][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 236.616259][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 236.616293][ C1] ? __pfx_validate_chain+0x10/0x10 [ 236.616320][ C1] ? __pfx_validate_chain+0x10/0x10 [ 236.616348][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 236.616378][ C1] ? mark_lock+0x9a/0x360 [ 236.616401][ C1] ? __pfx_validate_chain+0x10/0x10 [ 236.616431][ C1] ? __lock_acquire+0x1359/0x2000 [ 236.616471][ C1] ? mark_lock+0x9a/0x360 [ 236.616500][ C1] ? __lock_acquire+0x1359/0x2000 [ 236.616546][ C1] netlink_rcv_skb+0x1e3/0x430 [ 236.616576][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 236.616605][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 236.616659][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 236.616680][ C1] netlink_unicast+0x7f0/0x990 [ 236.616715][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 236.616738][ C1] ? __virt_addr_valid+0x183/0x530 [ 236.616768][ C1] ? __check_object_size+0x49c/0x900 [ 236.616791][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 236.616819][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 236.616851][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 236.616868][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 236.616894][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 236.616917][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 236.616941][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 236.616969][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 236.616986][ C1] __sock_sendmsg+0x221/0x270 [ 236.617017][ C1] __sys_sendto+0x3a4/0x4f0 [ 236.617045][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 236.617094][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 236.617121][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 236.617152][ C1] __x64_sys_sendto+0xde/0x100 [ 236.617177][ C1] do_syscall_64+0xf3/0x230 [ 236.617199][ C1] ? clear_bhb_loop+0x35/0x90 [ 236.617225][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 236.617246][ C1] RIP: 0033:0x7f87c977796c [ 236.617269][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 236.617290][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 236.617304][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 236.617317][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 236.617329][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 236.617341][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 236.617372][ C1] [ 236.617380][ C1] DEBUG: waiting rtnl_mutex for 3897 jiffies. [ 236.617390][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 236.617422][ C1] Workqueue: events linkwatch_event [ 236.617443][ C1] Call Trace: [ 236.617450][ C1] [ 236.617463][ C1] __schedule+0x1800/0x4a60 [ 236.617509][ C1] ? __pfx___schedule+0x10/0x10 [ 236.617533][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 236.617556][ C1] ? __pfx_lock_release+0x10/0x10 [ 236.617581][ C1] ? kick_pool+0x45c/0x620 [ 236.617610][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 236.617631][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 236.617657][ C1] ? schedule+0x90/0x320 [ 236.617677][ C1] schedule+0x14b/0x320 [ 236.617701][ C1] schedule_preempt_disabled+0x13/0x30 [ 236.617722][ C1] __mutex_lock+0x6a4/0xd70 [ 236.617750][ C1] ? __mutex_lock+0x527/0xd70 [ 236.617776][ C1] ? linkwatch_event+0xe/0x60 [ 236.617796][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 236.617832][ C1] ? get_rtnl_holder+0x144/0x190 [ 236.617853][ C1] ? process_scheduled_works+0x945/0x1830 [ 236.617874][ C1] linkwatch_event+0xe/0x60 [ 236.617892][ C1] process_scheduled_works+0xa2c/0x1830 [ 236.617946][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 236.617978][ C1] ? assign_work+0x364/0x3d0 [ 236.618007][ C1] worker_thread+0x86d/0xd40 [ 236.618039][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 236.618066][ C1] ? __kthread_parkme+0x169/0x1d0 [ 236.618093][ C1] ? __pfx_worker_thread+0x10/0x10 [ 236.618116][ C1] kthread+0x2f0/0x390 [ 236.618141][ C1] ? __pfx_worker_thread+0x10/0x10 [ 236.618162][ C1] ? __pfx_kthread+0x10/0x10 [ 236.618188][ C1] ret_from_fork+0x4b/0x80 [ 236.618217][ C1] ? __pfx_kthread+0x10/0x10 [ 236.618243][ C1] ret_from_fork_asm+0x1a/0x30 [ 236.618286][ C1] [ 236.618293][ C1] DEBUG: waiting rtnl_mutex for 4012 jiffies. [ 236.618303][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 236.618333][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 236.618356][ C1] Call Trace: [ 236.618363][ C1] [ 236.618376][ C1] __schedule+0x1800/0x4a60 [ 236.618422][ C1] ? __pfx___schedule+0x10/0x10 [ 236.618447][ C1] ? __pfx_lock_release+0x10/0x10 [ 236.618472][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 236.618501][ C1] ? kthread_data+0x52/0xd0 [ 236.618522][ C1] ? schedule+0x90/0x320 [ 236.618543][ C1] ? wq_worker_sleeping+0x66/0x240 [ 236.618568][ C1] ? schedule+0x90/0x320 [ 236.618588][ C1] schedule+0x14b/0x320 [ 236.618612][ C1] schedule_preempt_disabled+0x13/0x30 [ 236.618633][ C1] __mutex_lock+0x6a4/0xd70 [ 236.618655][ C1] ? mark_lock+0x9a/0x360 [ 236.618682][ C1] ? __mutex_lock+0x527/0xd70 [ 236.618713][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 236.618738][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 236.618774][ C1] ? get_rtnl_holder+0x144/0x190 [ 236.618800][ C1] addrconf_dad_work+0xd0/0x16f0 [ 236.618834][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 236.618858][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 236.618896][ C1] ? process_scheduled_works+0x945/0x1830 [ 236.618917][ C1] process_scheduled_works+0xa2c/0x1830 [ 236.618970][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 236.619003][ C1] ? assign_work+0x364/0x3d0 [ 236.619033][ C1] worker_thread+0x86d/0xd40 [ 236.619075][ C1] ? __kthread_parkme+0x169/0x1d0 [ 236.619103][ C1] ? __pfx_worker_thread+0x10/0x10 [ 236.619126][ C1] kthread+0x2f0/0x390 [ 236.619151][ C1] ? __pfx_worker_thread+0x10/0x10 [ 236.619173][ C1] ? __pfx_kthread+0x10/0x10 [ 236.619203][ C1] ret_from_fork+0x4b/0x80 [ 236.619226][ C1] ? __pfx_kthread+0x10/0x10 [ 236.619251][ C1] ret_from_fork_asm+0x1a/0x30 [ 236.619293][ C1] [ 236.619300][ C1] DEBUG: holding rtnl_mutex for 3994 jiffies. [ 236.619310][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 236.619340][ C1] Workqueue: netns cleanup_net [ 236.619358][ C1] Call Trace: [ 236.619366][ C1] [ 236.619378][ C1] __schedule+0x1800/0x4a60 [ 236.619424][ C1] ? __pfx___schedule+0x10/0x10 [ 236.619452][ C1] ? __pfx_lock_release+0x10/0x10 [ 236.619473][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 236.619501][ C1] ? kthread_data+0x52/0xd0 [ 236.619525][ C1] ? wq_worker_sleeping+0x66/0x240 [ 236.619551][ C1] ? schedule+0x90/0x320 [ 236.619571][ C1] schedule+0x14b/0x320 [ 236.619595][ C1] synchronize_rcu_expedited+0x684/0x830 [ 236.619627][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 236.619673][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 236.619700][ C1] ? __pfx___might_resched+0x10/0x10 [ 236.619719][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 236.619798][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 236.619832][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 236.619880][ C1] synchronize_rcu+0x11b/0x360 [ 236.619915][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 236.619971][ C1] lockdep_unregister_key+0x556/0x610 [ 236.620012][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 236.620050][ C1] ? rcu_is_watching+0x15/0xb0 [ 236.620084][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 236.620122][ C1] __qdisc_destroy+0x165/0x410 [ 236.620154][ C1] dev_shutdown+0x357/0x440 [ 236.620188][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 236.620245][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 236.620289][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 236.620320][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 236.620351][ C1] default_device_exit_batch+0xa0f/0xa90 [ 236.620390][ C1] ? __pfx___might_resched+0x10/0x10 [ 236.620412][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 236.620452][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 236.620475][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 236.620506][ C1] cleanup_net+0x89d/0xcc0 [ 236.620532][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 236.620565][ C1] ? process_scheduled_works+0x945/0x1830 [ 236.620586][ C1] process_scheduled_works+0xa2c/0x1830 [ 236.620640][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 236.620672][ C1] ? assign_work+0x364/0x3d0 [ 236.620700][ C1] worker_thread+0x86d/0xd40 [ 236.620733][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 236.620759][ C1] ? __kthread_parkme+0x169/0x1d0 [ 236.620787][ C1] ? __pfx_worker_thread+0x10/0x10 [ 236.620810][ C1] kthread+0x2f0/0x390 [ 236.620834][ C1] ? __pfx_worker_thread+0x10/0x10 [ 236.620856][ C1] ? __pfx_kthread+0x10/0x10 [ 236.620882][ C1] ret_from_fork+0x4b/0x80 [ 236.620905][ C1] ? __pfx_kthread+0x10/0x10 [ 236.620930][ C1] ret_from_fork_asm+0x1a/0x30 [ 236.620972][ C1] [ 236.620982][ C1] [ 236.620982][ C1] Showing all locks held in the system: [ 236.620997][ C1] 5 locks held by kworker/u8:3/52: [ 236.621014][ C1] 5 locks held by kworker/u8:5/143: [ 236.621025][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 236.621078][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 236.621127][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 236.621173][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 236.621233][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 236.621305][ C1] 3 locks held by kworker/u8:7/2422: [ 236.621316][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 236.621366][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 236.621416][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 236.621471][ C1] 3 locks held by kworker/u8:11/2871: [ 236.621485][ C1] 2 locks held by getty/4856: [ 236.621495][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 236.621549][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 236.621603][ C1] 3 locks held by kworker/1:3/5150: [ 236.621613][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 236.621663][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 236.621712][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 236.621763][ C1] 1 lock held by syz-executor/6328: [ 236.621774][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 236.621829][ C1] 3 locks held by syz.4.254/6503: [ 236.621840][ C1] 6 locks held by syz.1.256/6510: [ 236.621851][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 236.621899][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 236.621949][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 236.622018][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 236.622065][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 236.622110][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 236.622163][ C1] [ 236.622169][ C1] ============================================= [ 236.622169][ C1] [ 237.651418][ C1] DEBUG: waiting rtnl_mutex for 4103 jiffies. [ 237.651439][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 237.651473][ C1] Call Trace: [ 237.651482][ C1] [ 237.651497][ C1] __schedule+0x1800/0x4a60 [ 237.651559][ C1] ? __pfx___schedule+0x10/0x10 [ 237.651586][ C1] ? __pfx_lock_release+0x10/0x10 [ 237.651612][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 237.651653][ C1] ? schedule+0x90/0x320 [ 237.651673][ C1] schedule+0x14b/0x320 [ 237.651698][ C1] schedule_preempt_disabled+0x13/0x30 [ 237.651719][ C1] __mutex_lock+0x6a4/0xd70 [ 237.651747][ C1] ? __mutex_lock+0x527/0xd70 [ 237.651774][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 237.651802][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 237.651839][ C1] ? get_rtnl_holder+0x144/0x190 [ 237.651862][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 237.651893][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 237.651923][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 237.651947][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 237.651981][ C1] ? __pfx_validate_chain+0x10/0x10 [ 237.652008][ C1] ? __pfx_validate_chain+0x10/0x10 [ 237.652036][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 237.652071][ C1] ? mark_lock+0x9a/0x360 [ 237.652094][ C1] ? __pfx_validate_chain+0x10/0x10 [ 237.652124][ C1] ? __lock_acquire+0x1359/0x2000 [ 237.652164][ C1] ? mark_lock+0x9a/0x360 [ 237.652194][ C1] ? __lock_acquire+0x1359/0x2000 [ 237.652240][ C1] netlink_rcv_skb+0x1e3/0x430 [ 237.652270][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 237.652299][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 237.652353][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 237.652374][ C1] netlink_unicast+0x7f0/0x990 [ 237.652410][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 237.652433][ C1] ? __virt_addr_valid+0x183/0x530 [ 237.652463][ C1] ? __check_object_size+0x49c/0x900 [ 237.652486][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 237.652513][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 237.652546][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 237.652563][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 237.652589][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 237.652613][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 237.652637][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 237.652665][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 237.652682][ C1] __sock_sendmsg+0x221/0x270 [ 237.652713][ C1] __sys_sendto+0x3a4/0x4f0 [ 237.652740][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 237.652790][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 237.652817][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 237.652847][ C1] __x64_sys_sendto+0xde/0x100 [ 237.652872][ C1] do_syscall_64+0xf3/0x230 [ 237.652891][ C1] ? clear_bhb_loop+0x35/0x90 [ 237.652916][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 237.652938][ C1] RIP: 0033:0x7f87c977796c [ 237.652963][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 237.652983][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 237.652998][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 237.653010][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 237.653023][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 237.653035][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 237.653074][ C1] [ 237.653082][ C1] DEBUG: waiting rtnl_mutex for 4001 jiffies. [ 237.653092][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 237.653123][ C1] Workqueue: events linkwatch_event [ 237.653144][ C1] Call Trace: [ 237.653151][ C1] [ 237.653164][ C1] __schedule+0x1800/0x4a60 [ 237.653211][ C1] ? __pfx___schedule+0x10/0x10 [ 237.653234][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 237.653258][ C1] ? __pfx_lock_release+0x10/0x10 [ 237.653282][ C1] ? kick_pool+0x45c/0x620 [ 237.653312][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 237.653333][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 237.653359][ C1] ? schedule+0x90/0x320 [ 237.653379][ C1] schedule+0x14b/0x320 [ 237.653404][ C1] schedule_preempt_disabled+0x13/0x30 [ 237.653424][ C1] __mutex_lock+0x6a4/0xd70 [ 237.653453][ C1] ? __mutex_lock+0x527/0xd70 [ 237.653479][ C1] ? linkwatch_event+0xe/0x60 [ 237.653499][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 237.653535][ C1] ? get_rtnl_holder+0x144/0x190 [ 237.653556][ C1] ? process_scheduled_works+0x945/0x1830 [ 237.653578][ C1] linkwatch_event+0xe/0x60 [ 237.653595][ C1] process_scheduled_works+0xa2c/0x1830 [ 237.653650][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 237.653685][ C1] ? assign_work+0x364/0x3d0 [ 237.653714][ C1] worker_thread+0x86d/0xd40 [ 237.653746][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 237.653773][ C1] ? __kthread_parkme+0x169/0x1d0 [ 237.653802][ C1] ? __pfx_worker_thread+0x10/0x10 [ 237.653824][ C1] kthread+0x2f0/0x390 [ 237.653849][ C1] ? __pfx_worker_thread+0x10/0x10 [ 237.653871][ C1] ? __pfx_kthread+0x10/0x10 [ 237.653897][ C1] ret_from_fork+0x4b/0x80 [ 237.653921][ C1] ? __pfx_kthread+0x10/0x10 [ 237.653947][ C1] ret_from_fork_asm+0x1a/0x30 [ 237.653990][ C1] [ 237.653997][ C1] DEBUG: waiting rtnl_mutex for 4116 jiffies. [ 237.654007][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 237.654036][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 237.654066][ C1] Call Trace: [ 237.654073][ C1] [ 237.654086][ C1] __schedule+0x1800/0x4a60 [ 237.654132][ C1] ? __pfx___schedule+0x10/0x10 [ 237.654158][ C1] ? __pfx_lock_release+0x10/0x10 [ 237.654183][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 237.654212][ C1] ? kthread_data+0x52/0xd0 [ 237.654234][ C1] ? schedule+0x90/0x320 [ 237.654254][ C1] ? wq_worker_sleeping+0x66/0x240 [ 237.654280][ C1] ? schedule+0x90/0x320 [ 237.654300][ C1] schedule+0x14b/0x320 [ 237.654325][ C1] schedule_preempt_disabled+0x13/0x30 [ 237.654346][ C1] __mutex_lock+0x6a4/0xd70 [ 237.654368][ C1] ? mark_lock+0x9a/0x360 [ 237.654398][ C1] ? __mutex_lock+0x527/0xd70 [ 237.654423][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 237.654448][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 237.654484][ C1] ? get_rtnl_holder+0x144/0x190 [ 237.654508][ C1] addrconf_dad_work+0xd0/0x16f0 [ 237.654542][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 237.654566][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 237.654604][ C1] ? process_scheduled_works+0x945/0x1830 [ 237.654625][ C1] process_scheduled_works+0xa2c/0x1830 [ 237.654679][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 237.654712][ C1] ? assign_work+0x364/0x3d0 [ 237.654740][ C1] worker_thread+0x86d/0xd40 [ 237.654780][ C1] ? __kthread_parkme+0x169/0x1d0 [ 237.654807][ C1] ? __pfx_worker_thread+0x10/0x10 [ 237.654830][ C1] kthread+0x2f0/0x390 [ 237.654855][ C1] ? __pfx_worker_thread+0x10/0x10 [ 237.654877][ C1] ? __pfx_kthread+0x10/0x10 [ 237.654903][ C1] ret_from_fork+0x4b/0x80 [ 237.654926][ C1] ? __pfx_kthread+0x10/0x10 [ 237.654951][ C1] ret_from_fork_asm+0x1a/0x30 [ 237.654993][ C1] [ 237.655001][ C1] DEBUG: holding rtnl_mutex for 4098 jiffies. [ 237.655010][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 237.655040][ C1] Workqueue: netns cleanup_net [ 237.655065][ C1] Call Trace: [ 237.655073][ C1] [ 237.655085][ C1] __schedule+0x1800/0x4a60 [ 237.655132][ C1] ? __pfx___schedule+0x10/0x10 [ 237.655158][ C1] ? __pfx_lock_release+0x10/0x10 [ 237.655180][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 237.655208][ C1] ? kthread_data+0x52/0xd0 [ 237.655232][ C1] ? wq_worker_sleeping+0x66/0x240 [ 237.655257][ C1] ? schedule+0x90/0x320 [ 237.655278][ C1] schedule+0x14b/0x320 [ 237.655302][ C1] synchronize_rcu_expedited+0x684/0x830 [ 237.655334][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 237.655380][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 237.655408][ C1] ? __pfx___might_resched+0x10/0x10 [ 237.655427][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 237.655451][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 237.655474][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 237.655510][ C1] synchronize_rcu+0x11b/0x360 [ 237.655537][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 237.655591][ C1] lockdep_unregister_key+0x556/0x610 [ 237.655621][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 237.655653][ C1] ? rcu_is_watching+0x15/0xb0 [ 237.655679][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 237.655704][ C1] __qdisc_destroy+0x165/0x410 [ 237.655727][ C1] dev_shutdown+0x357/0x440 [ 237.655751][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 237.655798][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 237.655842][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 237.655873][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 237.655904][ C1] default_device_exit_batch+0xa0f/0xa90 [ 237.655943][ C1] ? __pfx___might_resched+0x10/0x10 [ 237.655966][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 237.656004][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 237.656028][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 237.656063][ C1] cleanup_net+0x89d/0xcc0 [ 237.656089][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 237.656122][ C1] ? process_scheduled_works+0x945/0x1830 [ 237.656143][ C1] process_scheduled_works+0xa2c/0x1830 [ 237.656199][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 237.656232][ C1] ? assign_work+0x364/0x3d0 [ 237.656260][ C1] worker_thread+0x86d/0xd40 [ 237.656292][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 237.656319][ C1] ? __kthread_parkme+0x169/0x1d0 [ 237.656346][ C1] ? __pfx_worker_thread+0x10/0x10 [ 237.656369][ C1] kthread+0x2f0/0x390 [ 237.656394][ C1] ? __pfx_worker_thread+0x10/0x10 [ 237.656415][ C1] ? __pfx_kthread+0x10/0x10 [ 237.656442][ C1] ret_from_fork+0x4b/0x80 [ 237.656464][ C1] ? __pfx_kthread+0x10/0x10 [ 237.656490][ C1] ret_from_fork_asm+0x1a/0x30 [ 237.656531][ C1] [ 237.656541][ C1] [ 237.656541][ C1] Showing all locks held in the system: [ 237.656556][ C1] 5 locks held by kworker/u8:3/52: [ 237.656573][ C1] 5 locks held by kworker/u8:5/143: [ 237.656583][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 237.656636][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 237.656685][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 237.656731][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 237.656786][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 237.656857][ C1] 3 locks held by kworker/u8:7/2422: [ 237.656869][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 237.656926][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 237.656977][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 237.657029][ C1] 3 locks held by kworker/u8:11/2871: [ 237.657048][ C1] 2 locks held by getty/4856: [ 237.657059][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 237.657113][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 237.657167][ C1] 3 locks held by kworker/1:3/5150: [ 237.657178][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 237.657227][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 237.657280][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 237.657331][ C1] 1 lock held by syz-executor/6328: [ 237.657342][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 237.657397][ C1] 3 locks held by syz.4.254/6503: [ 237.657408][ C1] 6 locks held by syz.1.256/6510: [ 237.657419][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 237.657467][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 237.657517][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 237.657569][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 237.657616][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 237.657661][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 237.657714][ C1] [ 237.657720][ C1] ============================================= [ 237.657720][ C1] [ 238.697700][ C1] DEBUG: waiting rtnl_mutex for 4207 jiffies. [ 238.697720][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 238.697756][ C1] Call Trace: [ 238.697765][ C1] [ 238.697780][ C1] __schedule+0x1800/0x4a60 [ 238.697834][ C1] ? __pfx___schedule+0x10/0x10 [ 238.697860][ C1] ? __pfx_lock_release+0x10/0x10 [ 238.697886][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 238.697927][ C1] ? schedule+0x90/0x320 [ 238.697948][ C1] schedule+0x14b/0x320 [ 238.697972][ C1] schedule_preempt_disabled+0x13/0x30 [ 238.697994][ C1] __mutex_lock+0x6a4/0xd70 [ 238.698027][ C1] ? __mutex_lock+0x527/0xd70 [ 238.698053][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 238.698082][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 238.698150][ C1] ? get_rtnl_holder+0x144/0x190 [ 238.698182][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 238.698225][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 238.698268][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 238.698301][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 238.698351][ C1] ? __pfx_validate_chain+0x10/0x10 [ 238.698391][ C1] ? __pfx_validate_chain+0x10/0x10 [ 238.698431][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 238.698472][ C1] ? mark_lock+0x9a/0x360 [ 238.698504][ C1] ? __pfx_validate_chain+0x10/0x10 [ 238.698548][ C1] ? __lock_acquire+0x1359/0x2000 [ 238.698608][ C1] ? mark_lock+0x9a/0x360 [ 238.698652][ C1] ? __lock_acquire+0x1359/0x2000 [ 238.698722][ C1] netlink_rcv_skb+0x1e3/0x430 [ 238.698765][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 238.698807][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 238.698889][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 238.698921][ C1] netlink_unicast+0x7f0/0x990 [ 238.698974][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 238.699007][ C1] ? __virt_addr_valid+0x183/0x530 [ 238.699059][ C1] ? __check_object_size+0x49c/0x900 [ 238.699092][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 238.699132][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 238.699182][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 238.699207][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 238.699245][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 238.699278][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 238.699311][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 238.699350][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 238.699373][ C1] __sock_sendmsg+0x221/0x270 [ 238.699417][ C1] __sys_sendto+0x3a4/0x4f0 [ 238.699455][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 238.699531][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 238.699571][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 238.699617][ C1] __x64_sys_sendto+0xde/0x100 [ 238.699654][ C1] do_syscall_64+0xf3/0x230 [ 238.699681][ C1] ? clear_bhb_loop+0x35/0x90 [ 238.699718][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 238.699793][ C1] RIP: 0033:0x7f87c977796c [ 238.699825][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 238.699856][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 238.699877][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 238.699895][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 238.699914][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 238.699932][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 238.699979][ C1] [ 238.699992][ C1] DEBUG: waiting rtnl_mutex for 4106 jiffies. [ 238.700007][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 238.700061][ C1] Workqueue: events linkwatch_event [ 238.700092][ C1] Call Trace: [ 238.700103][ C1] [ 238.700124][ C1] __schedule+0x1800/0x4a60 [ 238.700192][ C1] ? __pfx___schedule+0x10/0x10 [ 238.700224][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 238.700247][ C1] ? __pfx_lock_release+0x10/0x10 [ 238.700272][ C1] ? kick_pool+0x45c/0x620 [ 238.700304][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 238.700325][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 238.700351][ C1] ? schedule+0x90/0x320 [ 238.700371][ C1] schedule+0x14b/0x320 [ 238.700396][ C1] schedule_preempt_disabled+0x13/0x30 [ 238.700416][ C1] __mutex_lock+0x6a4/0xd70 [ 238.700445][ C1] ? __mutex_lock+0x527/0xd70 [ 238.700471][ C1] ? linkwatch_event+0xe/0x60 [ 238.700491][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 238.700527][ C1] ? get_rtnl_holder+0x144/0x190 [ 238.700548][ C1] ? process_scheduled_works+0x945/0x1830 [ 238.700570][ C1] linkwatch_event+0xe/0x60 [ 238.700587][ C1] process_scheduled_works+0xa2c/0x1830 [ 238.700641][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 238.700675][ C1] ? assign_work+0x364/0x3d0 [ 238.700703][ C1] worker_thread+0x86d/0xd40 [ 238.700736][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 238.700762][ C1] ? __kthread_parkme+0x169/0x1d0 [ 238.700790][ C1] ? __pfx_worker_thread+0x10/0x10 [ 238.700813][ C1] kthread+0x2f0/0x390 [ 238.700838][ C1] ? __pfx_worker_thread+0x10/0x10 [ 238.700859][ C1] ? __pfx_kthread+0x10/0x10 [ 238.700885][ C1] ret_from_fork+0x4b/0x80 [ 238.700909][ C1] ? __pfx_kthread+0x10/0x10 [ 238.700934][ C1] ret_from_fork_asm+0x1a/0x30 [ 238.700977][ C1] [ 238.700985][ C1] DEBUG: waiting rtnl_mutex for 4221 jiffies. [ 238.700995][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 238.701032][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 238.701056][ C1] Call Trace: [ 238.701064][ C1] [ 238.701077][ C1] __schedule+0x1800/0x4a60 [ 238.701123][ C1] ? __pfx___schedule+0x10/0x10 [ 238.701149][ C1] ? __pfx_lock_release+0x10/0x10 [ 238.701173][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 238.701206][ C1] ? kthread_data+0x52/0xd0 [ 238.701228][ C1] ? schedule+0x90/0x320 [ 238.701248][ C1] ? wq_worker_sleeping+0x66/0x240 [ 238.701275][ C1] ? schedule+0x90/0x320 [ 238.701296][ C1] schedule+0x14b/0x320 [ 238.701320][ C1] schedule_preempt_disabled+0x13/0x30 [ 238.701341][ C1] __mutex_lock+0x6a4/0xd70 [ 238.701363][ C1] ? mark_lock+0x9a/0x360 [ 238.701390][ C1] ? __mutex_lock+0x527/0xd70 [ 238.701416][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 238.701441][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 238.701477][ C1] ? get_rtnl_holder+0x144/0x190 [ 238.701500][ C1] addrconf_dad_work+0xd0/0x16f0 [ 238.701535][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 238.701559][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 238.701596][ C1] ? process_scheduled_works+0x945/0x1830 [ 238.701618][ C1] process_scheduled_works+0xa2c/0x1830 [ 238.701671][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 238.701704][ C1] ? assign_work+0x364/0x3d0 [ 238.701732][ C1] worker_thread+0x86d/0xd40 [ 238.701771][ C1] ? __kthread_parkme+0x169/0x1d0 [ 238.701814][ C1] ? __pfx_worker_thread+0x10/0x10 [ 238.701837][ C1] kthread+0x2f0/0x390 [ 238.701862][ C1] ? __pfx_worker_thread+0x10/0x10 [ 238.701883][ C1] ? __pfx_kthread+0x10/0x10 [ 238.701910][ C1] ret_from_fork+0x4b/0x80 [ 238.701932][ C1] ? __pfx_kthread+0x10/0x10 [ 238.701958][ C1] ret_from_fork_asm+0x1a/0x30 [ 238.701999][ C1] [ 238.702007][ C1] DEBUG: holding rtnl_mutex for 4203 jiffies. [ 238.702017][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 238.702050][ C1] Workqueue: netns cleanup_net [ 238.702069][ C1] Call Trace: [ 238.702077][ C1] [ 238.702089][ C1] __schedule+0x1800/0x4a60 [ 238.702135][ C1] ? __pfx___schedule+0x10/0x10 [ 238.702161][ C1] ? __pfx_lock_release+0x10/0x10 [ 238.702182][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 238.702211][ C1] ? kthread_data+0x52/0xd0 [ 238.702235][ C1] ? wq_worker_sleeping+0x66/0x240 [ 238.702260][ C1] ? schedule+0x90/0x320 [ 238.702281][ C1] schedule+0x14b/0x320 [ 238.702305][ C1] synchronize_rcu_expedited+0x684/0x830 [ 238.702337][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 238.702382][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 238.702410][ C1] ? __pfx___might_resched+0x10/0x10 [ 238.702429][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 238.702453][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 238.702476][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 238.702512][ C1] synchronize_rcu+0x11b/0x360 [ 238.702538][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 238.702580][ C1] lockdep_unregister_key+0x556/0x610 [ 238.702608][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 238.702636][ C1] ? rcu_is_watching+0x15/0xb0 [ 238.702662][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 238.702687][ C1] __qdisc_destroy+0x165/0x410 [ 238.702709][ C1] dev_shutdown+0x357/0x440 [ 238.702733][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 238.702779][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 238.702823][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 238.702854][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 238.702885][ C1] default_device_exit_batch+0xa0f/0xa90 [ 238.702923][ C1] ? __pfx___might_resched+0x10/0x10 [ 238.702945][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 238.702983][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 238.703006][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 238.703042][ C1] cleanup_net+0x89d/0xcc0 [ 238.703068][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 238.703100][ C1] ? process_scheduled_works+0x945/0x1830 [ 238.703121][ C1] process_scheduled_works+0xa2c/0x1830 [ 238.703175][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 238.703207][ C1] ? assign_work+0x364/0x3d0 [ 238.703236][ C1] worker_thread+0x86d/0xd40 [ 238.703268][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 238.703294][ C1] ? __kthread_parkme+0x169/0x1d0 [ 238.703321][ C1] ? __pfx_worker_thread+0x10/0x10 [ 238.703344][ C1] kthread+0x2f0/0x390 [ 238.703369][ C1] ? __pfx_worker_thread+0x10/0x10 [ 238.703390][ C1] ? __pfx_kthread+0x10/0x10 [ 238.703417][ C1] ret_from_fork+0x4b/0x80 [ 238.703439][ C1] ? __pfx_kthread+0x10/0x10 [ 238.703464][ C1] ret_from_fork_asm+0x1a/0x30 [ 238.703506][ C1] [ 238.703515][ C1] [ 238.703515][ C1] Showing all locks held in the system: [ 238.703530][ C1] 5 locks held by kworker/u8:3/52: [ 238.703548][ C1] 5 locks held by kworker/u8:5/143: [ 238.703558][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 238.703611][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 238.703660][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 238.703706][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 238.703761][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 238.703833][ C1] 3 locks held by kworker/u8:7/2422: [ 238.703843][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 238.703893][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 238.703944][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 238.703996][ C1] 3 locks held by kworker/u8:11/2871: [ 238.704011][ C1] 2 locks held by getty/4856: [ 238.704025][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 238.704079][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 238.704132][ C1] 3 locks held by kworker/1:3/5150: [ 238.704143][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 238.704193][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 238.704242][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 238.704293][ C1] 1 lock held by syz-executor/6328: [ 238.704304][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 238.704359][ C1] 3 locks held by syz.4.254/6503: [ 238.704370][ C1] 6 locks held by syz.1.256/6510: [ 238.704381][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 238.704427][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 238.704478][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 238.704530][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 238.704576][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 238.704621][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 238.704674][ C1] [ 238.704680][ C1] ============================================= [ 238.704680][ C1] [ 239.729931][ C1] DEBUG: waiting rtnl_mutex for 4311 jiffies. [ 239.729955][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 239.729990][ C1] Call Trace: [ 239.729998][ C1] [ 239.730012][ C1] __schedule+0x1800/0x4a60 [ 239.730065][ C1] ? __pfx___schedule+0x10/0x10 [ 239.730091][ C1] ? __pfx_lock_release+0x10/0x10 [ 239.730117][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 239.730158][ C1] ? schedule+0x90/0x320 [ 239.730178][ C1] schedule+0x14b/0x320 [ 239.730203][ C1] schedule_preempt_disabled+0x13/0x30 [ 239.730224][ C1] __mutex_lock+0x6a4/0xd70 [ 239.730253][ C1] ? __mutex_lock+0x527/0xd70 [ 239.730279][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 239.730309][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 239.730346][ C1] ? get_rtnl_holder+0x144/0x190 [ 239.730369][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 239.730399][ C1] ? rtnetlink_rcv_msg+0x208/0x1180 [ 239.730430][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 239.730454][ C1] ? is_bpf_text_address+0x285/0x2a0 [ 239.730488][ C1] ? __pfx_validate_chain+0x10/0x10 [ 239.730515][ C1] ? __pfx_validate_chain+0x10/0x10 [ 239.730543][ C1] ? arch_stack_walk+0x16d/0x1b0 [ 239.730574][ C1] ? mark_lock+0x9a/0x360 [ 239.730597][ C1] ? __pfx_validate_chain+0x10/0x10 [ 239.730626][ C1] ? __lock_acquire+0x1359/0x2000 [ 239.730667][ C1] ? mark_lock+0x9a/0x360 [ 239.730696][ C1] ? __lock_acquire+0x1359/0x2000 [ 239.730743][ C1] netlink_rcv_skb+0x1e3/0x430 [ 239.730772][ C1] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 239.730801][ C1] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 239.730855][ C1] ? netlink_deliver_tap+0x2e/0x1b0 [ 239.730876][ C1] netlink_unicast+0x7f0/0x990 [ 239.730912][ C1] ? __pfx_netlink_unicast+0x10/0x10 [ 239.730940][ C1] ? __virt_addr_valid+0x183/0x530 [ 239.730970][ C1] ? __check_object_size+0x49c/0x900 [ 239.730992][ C1] ? bpf_lsm_netlink_send+0x9/0x10 [ 239.731020][ C1] netlink_sendmsg+0x8e4/0xcb0 [ 239.731053][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 239.731070][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 239.731096][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 239.731119][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 239.731143][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 239.731172][ C1] ? __pfx_netlink_sendmsg+0x10/0x10 [ 239.731188][ C1] __sock_sendmsg+0x221/0x270 [ 239.731220][ C1] __sys_sendto+0x3a4/0x4f0 [ 239.731247][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 239.731297][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 239.731324][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 239.731354][ C1] __x64_sys_sendto+0xde/0x100 [ 239.731379][ C1] do_syscall_64+0xf3/0x230 [ 239.731397][ C1] ? clear_bhb_loop+0x35/0x90 [ 239.731423][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 239.731444][ C1] RIP: 0033:0x7f87c977796c [ 239.731466][ C1] RSP: 002b:00007ffd20f81f60 EFLAGS: 00000293 ORIG_RAX: 000000000000002c [ 239.731486][ C1] RAX: ffffffffffffffda RBX: 00007f87ca434620 RCX: 00007f87c977796c [ 239.731501][ C1] RDX: 0000000000000064 RSI: 00007f87ca434670 RDI: 0000000000000003 [ 239.731513][ C1] RBP: 0000000000000000 R08: 00007ffd20f81fb4 R09: 000000000000000c [ 239.731526][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 [ 239.731538][ C1] R13: 0000000000000000 R14: 00007f87ca434670 R15: 0000000000000000 [ 239.731569][ C1] [ 239.731577][ C1] DEBUG: waiting rtnl_mutex for 4209 jiffies. [ 239.731588][ C1] task:kworker/1:3 state:D stack:23680 pid:5150 tgid:5150 ppid:2 flags:0x00004000 [ 239.731619][ C1] Workqueue: events linkwatch_event [ 239.731640][ C1] Call Trace: [ 239.731647][ C1] [ 239.731660][ C1] __schedule+0x1800/0x4a60 [ 239.731706][ C1] ? __pfx___schedule+0x10/0x10 [ 239.731730][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 239.731753][ C1] ? __pfx_lock_release+0x10/0x10 [ 239.731778][ C1] ? kick_pool+0x45c/0x620 [ 239.731807][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 239.731827][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 239.731854][ C1] ? schedule+0x90/0x320 [ 239.731874][ C1] schedule+0x14b/0x320 [ 239.731898][ C1] schedule_preempt_disabled+0x13/0x30 [ 239.731919][ C1] __mutex_lock+0x6a4/0xd70 [ 239.731953][ C1] ? __mutex_lock+0x527/0xd70 [ 239.731979][ C1] ? linkwatch_event+0xe/0x60 [ 239.731999][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 239.732035][ C1] ? get_rtnl_holder+0x144/0x190 [ 239.732056][ C1] ? process_scheduled_works+0x945/0x1830 [ 239.732077][ C1] linkwatch_event+0xe/0x60 [ 239.732095][ C1] process_scheduled_works+0xa2c/0x1830 [ 239.732148][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 239.732181][ C1] ? assign_work+0x364/0x3d0 [ 239.732209][ C1] worker_thread+0x86d/0xd40 [ 239.732242][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 239.732269][ C1] ? __kthread_parkme+0x169/0x1d0 [ 239.732297][ C1] ? __pfx_worker_thread+0x10/0x10 [ 239.732319][ C1] kthread+0x2f0/0x390 [ 239.732344][ C1] ? __pfx_worker_thread+0x10/0x10 [ 239.732366][ C1] ? __pfx_kthread+0x10/0x10 [ 239.732392][ C1] ret_from_fork+0x4b/0x80 [ 239.732415][ C1] ? __pfx_kthread+0x10/0x10 [ 239.732441][ C1] ret_from_fork_asm+0x1a/0x30 [ 239.732484][ C1] [ 239.732492][ C1] DEBUG: waiting rtnl_mutex for 4324 jiffies. [ 239.732502][ C1] task:kworker/u8:7 state:D stack:22144 pid:2422 tgid:2422 ppid:2 flags:0x00004000 [ 239.732531][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 239.732554][ C1] Call Trace: [ 239.732562][ C1] [ 239.732575][ C1] __schedule+0x1800/0x4a60 [ 239.732621][ C1] ? __pfx___schedule+0x10/0x10 [ 239.732647][ C1] ? __pfx_lock_release+0x10/0x10 [ 239.732671][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 239.732700][ C1] ? kthread_data+0x52/0xd0 [ 239.732722][ C1] ? schedule+0x90/0x320 [ 239.732742][ C1] ? wq_worker_sleeping+0x66/0x240 [ 239.732768][ C1] ? schedule+0x90/0x320 [ 239.732787][ C1] schedule+0x14b/0x320 [ 239.732812][ C1] schedule_preempt_disabled+0x13/0x30 [ 239.732832][ C1] __mutex_lock+0x6a4/0xd70 [ 239.732855][ C1] ? mark_lock+0x9a/0x360 [ 239.732882][ C1] ? __mutex_lock+0x527/0xd70 [ 239.732908][ C1] ? addrconf_dad_work+0xd0/0x16f0 [ 239.732933][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 239.732973][ C1] ? get_rtnl_holder+0x144/0x190 [ 239.732996][ C1] addrconf_dad_work+0xd0/0x16f0 [ 239.733030][ C1] ? __pfx_addrconf_dad_work+0x10/0x10 [ 239.733054][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 239.733092][ C1] ? process_scheduled_works+0x945/0x1830 [ 239.733113][ C1] process_scheduled_works+0xa2c/0x1830 [ 239.733166][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 239.733199][ C1] ? assign_work+0x364/0x3d0 [ 239.733227][ C1] worker_thread+0x86d/0xd40 [ 239.733266][ C1] ? __kthread_parkme+0x169/0x1d0 [ 239.733294][ C1] ? __pfx_worker_thread+0x10/0x10 [ 239.733317][ C1] kthread+0x2f0/0x390 [ 239.733342][ C1] ? __pfx_worker_thread+0x10/0x10 [ 239.733363][ C1] ? __pfx_kthread+0x10/0x10 [ 239.733390][ C1] ret_from_fork+0x4b/0x80 [ 239.733412][ C1] ? __pfx_kthread+0x10/0x10 [ 239.733438][ C1] ret_from_fork_asm+0x1a/0x30 [ 239.733479][ C1] [ 239.733487][ C1] DEBUG: holding rtnl_mutex for 4306 jiffies. [ 239.733496][ C1] task:kworker/u8:5 state:D stack:21248 pid:143 tgid:143 ppid:2 flags:0x00004000 [ 239.733525][ C1] Workqueue: netns cleanup_net [ 239.733543][ C1] Call Trace: [ 239.733550][ C1] [ 239.733563][ C1] __schedule+0x1800/0x4a60 [ 239.733609][ C1] ? __pfx___schedule+0x10/0x10 [ 239.733635][ C1] ? __pfx_lock_release+0x10/0x10 [ 239.733656][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 239.733684][ C1] ? kthread_data+0x52/0xd0 [ 239.733708][ C1] ? wq_worker_sleeping+0x66/0x240 [ 239.733734][ C1] ? schedule+0x90/0x320 [ 239.733754][ C1] schedule+0x14b/0x320 [ 239.733778][ C1] synchronize_rcu_expedited+0x684/0x830 [ 239.733811][ C1] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 239.733856][ C1] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 239.733884][ C1] ? __pfx___might_resched+0x10/0x10 [ 239.733903][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 239.733927][ C1] ? __pfx_autoremove_wake_function+0x10/0x10 [ 239.733955][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 239.733991][ C1] synchronize_rcu+0x11b/0x360 [ 239.734017][ C1] ? __pfx_synchronize_rcu+0x10/0x10 [ 239.734060][ C1] lockdep_unregister_key+0x556/0x610 [ 239.734088][ C1] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 239.734116][ C1] ? rcu_is_watching+0x15/0xb0 [ 239.734141][ C1] ? qdisc_reset+0x3bf/0x5b0 [ 239.734167][ C1] __qdisc_destroy+0x165/0x410 [ 239.734189][ C1] dev_shutdown+0x357/0x440 [ 239.734213][ C1] unregister_netdevice_many_notify+0x9c7/0x1d20 [ 239.734259][ C1] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 239.734303][ C1] ? unregister_netdevice_queue+0x26b/0x370 [ 239.734334][ C1] ? batadv_softif_destroy_netlink+0x1e0/0x270 [ 239.734364][ C1] default_device_exit_batch+0xa0f/0xa90 [ 239.734403][ C1] ? __pfx___might_resched+0x10/0x10 [ 239.734425][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 239.734463][ C1] ? cfg802154_pernet_exit+0xc3/0xe0 [ 239.734486][ C1] ? __pfx_default_device_exit_batch+0x10/0x10 [ 239.734517][ C1] cleanup_net+0x89d/0xcc0 [ 239.734543][ C1] ? __pfx_cleanup_net+0x10/0x10 [ 239.734576][ C1] ? process_scheduled_works+0x945/0x1830 [ 239.734597][ C1] process_scheduled_works+0xa2c/0x1830 [ 239.734650][ C1] ? __pfx_process_scheduled_works+0x10/0x10 [ 239.734682][ C1] ? assign_work+0x364/0x3d0 [ 239.734711][ C1] worker_thread+0x86d/0xd40 [ 239.734743][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 239.734769][ C1] ? __kthread_parkme+0x169/0x1d0 [ 239.734797][ C1] ? __pfx_worker_thread+0x10/0x10 [ 239.734819][ C1] kthread+0x2f0/0x390 [ 239.734844][ C1] ? __pfx_worker_thread+0x10/0x10 [ 239.734865][ C1] ? __pfx_kthread+0x10/0x10 [ 239.734892][ C1] ret_from_fork+0x4b/0x80 [ 239.734914][ C1] ? __pfx_kthread+0x10/0x10 [ 239.734943][ C1] ret_from_fork_asm+0x1a/0x30 [ 239.734985][ C1] [ 239.734994][ C1] [ 239.734994][ C1] Showing all locks held in the system: [ 239.735010][ C1] 5 locks held by kworker/u8:3/52: [ 239.735027][ C1] 5 locks held by kworker/u8:5/143: [ 239.735038][ C1] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 239.735090][ C1] #1: ffffc90002e27d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 239.735139][ C1] #2: ffffffff8f5f2c10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 239.735185][ C1] #3: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 239.735240][ C1] #4: ffffffff8e33ac38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 239.735312][ C1] 3 locks held by kworker/u8:7/2422: [ 239.735323][ C1] #0: ffff88802a3c8148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 239.735373][ C1] #1: ffffc9000890fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 239.735423][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 239.735476][ C1] 3 locks held by kworker/u8:11/2871: [ 239.735490][ C1] 2 locks held by getty/4856: [ 239.735500][ C1] #0: ffff88802acfc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 239.735554][ C1] #1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 239.735607][ C1] 3 locks held by kworker/1:3/5150: [ 239.735617][ C1] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 239.735667][ C1] #1: ffffc90003e4fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 239.735716][ C1] #2: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 239.735767][ C1] 1 lock held by syz-executor/6328: [ 239.735778][ C1] #0: ffffffff8f5ff788 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x847/0x1180 [ 239.735833][ C1] 3 locks held by syz.4.254/6503: [ 239.735844][ C1] 6 locks held by syz.1.256/6510: [ 239.735855][ C1] #0: ffff88801ffb24c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700 [ 239.735901][ C1] #1: ffff88801ffb8198 (&nbd->config_lock){+.+.}-{3:3}, at: refcount_dec_and_mutex_lock+0x30/0x100 [ 239.735957][ C1] #2: ffffffff8e2110a0 (console_lock){+.+.}-{0:0}, at: dev_vprintk_emit+0x2ae/0x330 [ 239.736009][ C1] #3: ffffffff8e210cb0 (console_srcu){....}-{0:0}, at: console_flush_all+0x147/0xf50 [ 239.736056][ C1] #4: ffffc90000a18c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 239.736101][ C1] #5: ffffffff8e335860 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 239.736153][ C1] [ 239.736159][ C1] ============================================= [ 239.736159][ C1] [ 240.773994][ C1] DEBUG: waiting rtnl_mutex for 4415 jiffies. [ 240.774013][ C1] task:syz-executor state:D stack:21024 pid:6328 tgid:6328 ppid:6307 flags:0x00000000 [ 240.774048][ C1] Call Trace: [ 240.774057][ C1] [ 240.774072][ C1] __schedule+0x1800/0x4a60 [ 240.774126][ C1] ? __pfx___schedule+0x10/0x10 [ 240.774152][ C1] ? __pfx_lock_release+0x10/0x10 [ 240.774178][ C1] ? __mutex_trylock_common+0x92/0x2e0 [ 240.774218][ C1] ? schedule+0x90/0x320 [ 240.774239][ C1] schedule+0x14b/0x320 [ 240.774263][ C1] schedule_preempt_disabled+0x13/0x30 [ 240.774285][ C1] __mutex_lock+0x6a4/0xd70 [ 240.774313][ C1] ? __mutex_lock+0x527/0xd70 [ 240.774339][ C1] ? rtnetlink_rcv_msg+0x847/0x1180 [ 240.774368][ C1] ? __pfx___mutex_lock+0x10/0x10 [ 240.774405][ C1] ? get_rtnl_holder+0x144/0x190 [ 240.774428][ C1] rtnetlink_rcv_msg+0x847/0x1180 [ 240.774459][ C1] ? rtnetlink_rcv_msg+0x208/0x1180