x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 804.721539][T16160] block nbd4: NBD_DISCONNECT [ 804.747923][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 804.753746][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 804.774701][T16152] block nbd3: NBD_DISCONNECT [ 804.865726][T16160] block nbd4: NBD_DISCONNECT 13:44:50 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:50 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x3}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:50 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:50 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x6000000, 0x0) [ 805.235823][T16200] block nbd4: NBD_DISCONNECT 13:44:51 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:44:51 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x600, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:44:51 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 805.399230][T16205] block nbd3: NBD_DISCONNECT [ 805.415633][T16208] block nbd4: NBD_DISCONNECT 13:44:51 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x7000000, 0x0) 13:44:51 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x4}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:51 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:51 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x8000000, 0x0) 13:44:51 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x700, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 805.839626][T16261] block nbd4: NBD_DISCONNECT 13:44:51 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 805.950451][T16261] block nbd4: NBD_DISCONNECT [ 806.022704][T16314] block nbd3: NBD_DISCONNECT 13:44:51 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x5}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:51 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x3f000000, 0x0) 13:44:51 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x3f00, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 806.204657][T16384] block nbd3: NBD_DISCONNECT [ 806.367267][T16400] block nbd4: NBD_DISCONNECT [ 806.523963][T16409] block nbd4: NBD_DISCONNECT 13:44:52 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:44:52 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:52 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:52 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x4000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:44:52 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x40000000, 0x0) 13:44:52 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x6}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 806.775323][T16430] block nbd4: NBD_DISCONNECT 13:44:52 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xf6ffffff, 0x0) [ 806.817909][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 806.823818][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 806.916401][T16432] block nbd3: NBD_DISCONNECT [ 806.932516][T16437] block nbd4: NBD_DISCONNECT 13:44:52 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xff00, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:44:52 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 807.042318][T16456] block nbd3: NBD_DISCONNECT 13:44:52 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xff000000, 0x0) 13:44:52 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x7}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:52 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 807.305857][T16499] block nbd4: NBD_DISCONNECT [ 807.474983][T16591] block nbd4: NBD_DISCONNECT [ 807.481673][T16519] block nbd3: NBD_DISCONNECT [ 807.607494][T16598] block nbd3: NBD_DISCONNECT [ 807.618625][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 807.626626][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:44:53 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:53 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x8}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:53 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:44:53 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 807.937873][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 807.943748][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 808.017632][T16620] block nbd4: NBD_DISCONNECT 13:44:53 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x1000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 808.053570][T16610] block nbd3: NBD_DISCONNECT 13:44:53 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 808.159015][T16738] block nbd4: NBD_DISCONNECT 13:44:53 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xfffffff6, 0x0) [ 808.250813][T16666] block nbd3: NBD_DISCONNECT 13:44:54 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:54 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x2000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:44:54 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:54 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0xa}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:54 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x1000000000000, 0x0) [ 808.636784][T16765] block nbd3: NBD_DISCONNECT 13:44:54 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x3000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 808.667380][T16880] block nbd4: NBD_DISCONNECT 13:44:54 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x100000000000000, 0x0) 13:44:54 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\a\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 808.812686][T16892] block nbd4: NBD_DISCONNECT 13:44:54 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:54 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x48}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:54 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:44:54 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x200000000000000, 0x0) 13:44:54 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x4000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 809.179438][T16920] block nbd4: NBD_DISCONNECT [ 809.247550][T16911] block nbd3: NBD_DISCONNECT 13:44:55 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\n\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 809.351090][T16937] block nbd4: NBD_DISCONNECT 13:44:55 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x300000000000000, 0x0) [ 809.384777][T16944] block nbd3: NBD_DISCONNECT 13:44:55 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x4c}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:55 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x5000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:44:55 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:55 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x400000000000000, 0x0) 13:44:55 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00?\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 809.740430][T17003] block nbd4: NBD_DISCONNECT [ 809.861567][T17083] block nbd4: NBD_DISCONNECT 13:44:55 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x500000000000000, 0x0) 13:44:55 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x68}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 810.028231][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 810.034251][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 810.042349][T17084] block nbd3: NBD_DISCONNECT [ 810.214144][T17105] block nbd4: NBD_DISCONNECT [ 810.380234][T17105] block nbd4: NBD_DISCONNECT 13:44:56 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:44:56 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00@\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:56 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:56 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x6c}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 810.578144][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 810.584635][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 810.661853][T17129] block nbd4: NBD_DISCONNECT [ 810.690430][T17126] block nbd3: NBD_DISCONNECT 13:44:56 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x6000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 810.773070][T17145] block nbd4: NBD_DISCONNECT 13:44:56 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x74}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:56 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00H\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:56 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:56 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x600000000000000, 0x0) [ 811.087177][T17238] block nbd4: NBD_DISCONNECT 13:44:56 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x7000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 811.280092][T17261] block nbd4: NBD_DISCONNECT 13:44:57 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00L\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:57 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x7a}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:57 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:44:57 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x700000000000000, 0x0) 13:44:57 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x8000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 811.658943][T17297] block nbd3: NBD_DISCONNECT [ 811.665604][T17308] block nbd4: NBD_DISCONNECT [ 811.758185][T17322] block nbd4: NBD_DISCONNECT 13:44:57 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x800000000000000, 0x0) 13:44:57 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:57 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0xbf}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:57 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00h\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:57 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x3f000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 812.067224][T17445] block nbd4: NBD_DISCONNECT 13:44:57 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x3f00000000000000, 0x0) [ 812.281580][T17452] block nbd3: NBD_DISCONNECT [ 812.342035][T17469] block nbd4: NBD_DISCONNECT [ 812.402999][T17464] block nbd3: NBD_DISCONNECT 13:44:58 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x4000000000000000, 0x0) 13:44:58 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x40000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:44:58 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:58 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:44:58 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0xfd}, 'port1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:58 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:58 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x8000000000000000, 0x0) 13:44:58 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xf6ffffff, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:44:58 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xf6ffffff00000000, 0x0) 13:44:58 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 812.993214][T17506] block nbd3: NBD_DISCONNECT [ 813.005849][T17510] block nbd4: NBD_DISCONNECT [ 813.134486][T17530] block nbd4: NBD_DISCONNECT 13:44:59 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, '%ort1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:59 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xff000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:44:59 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:59 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 813.540794][T17657] block nbd4: NBD_DISCONNECT [ 813.677262][T17653] block nbd3: NBD_DISCONNECT [ 813.720999][T17670] block nbd4: NBD_DISCONNECT 13:44:59 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'p%rt1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 814.024100][T17687] block nbd4: NBD_DISCONNECT 13:44:59 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:44:59 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:44:59 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xff00000000000000, 0x0) 13:44:59 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:44:59 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x2) [ 814.204886][T17704] block nbd4: NBD_DISCONNECT 13:45:00 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'po%t1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 814.271626][T17696] block nbd3: NBD_DISCONNECT [ 814.399989][T17722] block nbd3: NBD_DISCONNECT 13:45:00 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xfffffff6, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 814.454340][T17725] block nbd4: NBD_DISCONNECT 13:45:00 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:00 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 814.613826][T17806] block nbd4: NBD_DISCONNECT 13:45:00 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'por%1\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:00 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x1000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 814.909729][T17850] block nbd3: NBD_DISCONNECT 13:45:00 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 814.937011][T17859] block nbd4: NBD_DISCONNECT [ 815.051910][T17874] block nbd3: NBD_DISCONNECT [ 815.065977][T17876] block nbd4: NBD_DISCONNECT 13:45:00 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x100000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:00 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x01\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:00 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x02\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:00 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3) 13:45:01 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 815.325499][T17943] block nbd4: NBD_DISCONNECT 13:45:01 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x200000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 815.496617][T18011] block nbd4: NBD_DISCONNECT 13:45:01 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 815.538518][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 815.545386][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 815.551309][T18013] block nbd3: NBD_DISCONNECT 13:45:01 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x03\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 815.687309][T18031] block nbd3: NBD_DISCONNECT 13:45:01 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x02\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:01 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x300000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:01 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 815.894151][T18044] block nbd4: NBD_DISCONNECT [ 816.062820][T18057] block nbd4: NBD_DISCONNECT 13:45:01 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x04\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:02 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x400000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 816.257904][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 816.263894][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 816.282402][T18064] block nbd3: NBD_DISCONNECT 13:45:02 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:02 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x4) [ 816.489567][T18092] block nbd3: NBD_DISCONNECT [ 816.570984][T18190] block nbd4: NBD_DISCONNECT 13:45:02 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:02 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x500000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 816.674662][T18202] block nbd4: NBD_DISCONNECT 13:45:02 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:02 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x04\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:02 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x05\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 816.976077][T18215] block nbd3: NBD_DISCONNECT [ 817.057126][T18232] block nbd4: NBD_DISCONNECT [ 817.100788][T18238] block nbd3: NBD_DISCONNECT [ 817.175151][T18246] block nbd4: NBD_DISCONNECT 13:45:03 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x06\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:03 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:03 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:03 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x5) [ 817.543285][T18361] block nbd4: NBD_DISCONNECT [ 817.617899][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 817.623709][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 817.639659][T18364] block nbd3: NBD_DISCONNECT [ 817.720074][T18379] block nbd4: NBD_DISCONNECT 13:45:03 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x600000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:03 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:03 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:03 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\a\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:03 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(0x0, 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 818.180269][T18410] block nbd4: NBD_DISCONNECT 13:45:04 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x700000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 818.239048][T18407] block nbd3: NBD_DISCONNECT [ 818.315583][T18410] block nbd4: NBD_DISCONNECT 13:45:04 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\b\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:04 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\a\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 818.439526][T18424] block nbd3: NBD_DISCONNECT 13:45:04 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x800000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:04 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:04 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x6) 13:45:04 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(0x0, 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 818.705465][T18445] block nbd4: NBD_DISCONNECT [ 818.833644][T18464] block nbd4: NBD_DISCONNECT [ 818.897883][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 818.903758][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:45:04 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\b\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:04 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\n\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:04 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x3f00000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 819.021239][T18470] block nbd3: NBD_DISCONNECT [ 819.157517][T18486] block nbd3: NBD_DISCONNECT 13:45:05 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(0x0, 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:05 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 819.296239][T18498] block nbd4: NBD_DISCONNECT 13:45:05 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x4000000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:05 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\n\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 819.390162][T18506] block nbd4: NBD_DISCONNECT 13:45:05 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1H\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 819.625245][T18517] block nbd3: NBD_DISCONNECT 13:45:05 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x7) 13:45:05 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x8000000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:05 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 819.819036][T18546] block nbd4: NBD_DISCONNECT 13:45:05 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00?\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 819.989591][T18564] block nbd4: NBD_DISCONNECT [ 820.076658][T18561] block nbd3: NBD_DISCONNECT 13:45:05 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xf6ffffff00000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 820.097878][ C1] protocol 88fb is buggy, dev hsr_slave_0 13:45:05 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1L\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:06 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 820.433310][T18596] block nbd4: NBD_DISCONNECT 13:45:06 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x0) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:06 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00@\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 820.566337][T18608] block nbd4: NBD_DISCONNECT 13:45:06 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1h\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 820.651672][T18600] block nbd3: NBD_DISCONNECT 13:45:06 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x8) [ 820.783710][T18624] block nbd3: NBD_DISCONNECT 13:45:06 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00H\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 820.872037][T18632] block nbd4: NBD_DISCONNECT 13:45:06 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 820.969331][T18648] block nbd4: NBD_DISCONNECT 13:45:06 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1l\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:07 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xff00000000000000, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:07 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00L\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 821.287195][T18757] block nbd3: NBD_DISCONNECT [ 821.331062][T18761] block nbd4: NBD_DISCONNECT [ 821.458696][T18776] block nbd4: NBD_DISCONNECT 13:45:07 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:07 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1t\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:07 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x2) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:07 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x0) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:07 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00h\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:07 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x300) [ 821.862241][T18804] block nbd4: NBD_DISCONNECT [ 822.002495][T18802] block nbd3: NBD_DISCONNECT [ 822.040404][T18819] block nbd4: NBD_DISCONNECT 13:45:07 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1z\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 822.173909][T18815] block nbd3: NBD_DISCONNECT [ 822.179505][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 822.179944][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:45:08 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:08 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 822.385202][T18907] block nbd4: NBD_DISCONNECT [ 822.610574][T18907] block nbd4: NBD_DISCONNECT 13:45:08 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:08 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\xbf\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:08 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 822.695274][T18955] block nbd3: NBD_DISCONNECT [ 822.893950][T18976] block nbd4: NBD_DISCONNECT 13:45:08 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x500) 13:45:08 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x0) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 822.976966][T18984] block nbd3: NBD_DISCONNECT [ 822.981741][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 822.981797][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 823.040070][T18992] block nbd4: NBD_DISCONNECT [ 823.057894][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 823.063721][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:45:08 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:08 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:08 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 823.329729][T19007] block nbd4: NBD_DISCONNECT [ 823.374620][T19012] block nbd3: NBD_DISCONNECT 13:45:09 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(0xffffffffffffffff, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 823.477241][T19126] block nbd4: NBD_DISCONNECT 13:45:09 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:09 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x03\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:09 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 823.770763][T19156] block nbd4: NBD_DISCONNECT 13:45:09 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x4) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:09 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 823.868656][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 823.874454][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 823.879051][T19153] block nbd3: NBD_DISCONNECT [ 823.898950][T19166] block nbd4: NBD_DISCONNECT 13:45:09 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x600) [ 824.009929][T19201] block nbd3: NBD_DISCONNECT 13:45:09 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x05\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:09 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 824.319478][T19300] block nbd4: NBD_DISCONNECT 13:45:10 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\xff\xff\xfd\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 824.382148][T19298] block nbd3: NBD_DISCONNECT [ 824.446341][T19307] block nbd4: NBD_DISCONNECT [ 824.469172][T19310] block nbd3: NBD_DISCONNECT 13:45:10 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x06\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:10 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:10 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(0xffffffffffffffff, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:10 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\xfd\xfd\xff\xff\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 824.748308][T19320] block nbd4: NBD_DISCONNECT [ 824.855422][T19338] block nbd4: NBD_DISCONNECT 13:45:10 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x5) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 824.954136][T19331] block nbd3: NBD_DISCONNECT 13:45:10 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\a\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 825.057895][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 825.063715][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:45:10 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x700) [ 825.205960][T19368] block nbd3: NBD_DISCONNECT 13:45:11 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:11 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 825.317516][T19462] block nbd4: NBD_DISCONNECT [ 825.474933][T19483] block nbd4: NBD_DISCONNECT 13:45:11 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\n\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 825.712800][T19489] block nbd3: NBD_DISCONNECT 13:45:11 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 825.817228][T19494] block nbd4: NBD_DISCONNECT 13:45:11 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(0xffffffffffffffff, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:11 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x6) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 825.942521][T19499] block nbd4: NBD_DISCONNECT 13:45:11 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:11 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00@\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:12 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:12 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x0, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:12 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3f00) [ 826.401842][T19645] block nbd4: NBD_DISCONNECT 13:45:12 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x4000) [ 826.514152][T19663] block nbd3: NBD_DISCONNECT [ 826.527621][T19664] block nbd4: NBD_DISCONNECT 13:45:12 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00H\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:12 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:12 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:12 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x0, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 826.822447][T19784] block nbd4: NBD_DISCONNECT [ 826.967344][T19787] block nbd3: NBD_DISCONNECT [ 826.972366][T19784] block nbd4: NBD_DISCONNECT 13:45:12 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x7) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:12 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00L\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 827.117091][T19810] block nbd3: NBD_DISCONNECT 13:45:13 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:13 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 827.279284][T19888] block nbd4: NBD_DISCONNECT 13:45:13 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x0, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 827.456966][T19938] block nbd4: NBD_DISCONNECT [ 827.553591][T19929] block nbd3: NBD_DISCONNECT 13:45:13 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xff00) 13:45:13 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00h\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 827.617885][ C0] net_ratelimit: 4 callbacks suppressed [ 827.617894][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 827.629294][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:45:13 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:13 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:13 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:13 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x1000000) [ 827.881058][T20067] block nbd4: NBD_DISCONNECT [ 827.981841][T20079] block nbd4: NBD_DISCONNECT 13:45:13 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x8) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:13 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00l\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 828.218296][T20083] block nbd3: NBD_DISCONNECT 13:45:14 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 828.417897][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 828.423775][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 828.425746][T20150] block nbd4: NBD_DISCONNECT 13:45:14 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 828.575487][T20221] block nbd4: NBD_DISCONNECT 13:45:14 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\b\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:14 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00t\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 828.738466][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 828.745121][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:45:14 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x2000000) [ 828.973575][T20239] block nbd4: NBD_DISCONNECT [ 828.994110][T20232] block nbd3: NBD_DISCONNECT 13:45:14 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 829.111051][T20262] block nbd4: NBD_DISCONNECT 13:45:14 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x300) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:14 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:14 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\n\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:15 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00z\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 829.460125][T20320] block nbd4: NBD_DISCONNECT [ 829.473846][T20283] block nbd3: NBD_DISCONNECT 13:45:15 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00?\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 829.594365][T20381] block nbd4: NBD_DISCONNECT [ 829.645586][T20403] block nbd3: NBD_DISCONNECT 13:45:15 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xbf\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:15 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:15 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:15 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00@\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 829.899737][T20431] block nbd4: NBD_DISCONNECT 13:45:15 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3000000) [ 830.049005][T20428] block nbd3: NBD_DISCONNECT [ 830.081121][T20440] block nbd4: NBD_DISCONNECT [ 830.097897][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 830.103743][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:45:15 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:16 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x500) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:16 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:16 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00H\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 830.499868][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 830.506412][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 830.582433][T20567] block nbd3: NBD_DISCONNECT [ 830.622665][T20570] block nbd4: NBD_DISCONNECT 13:45:16 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, 0x0, 0x0) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 830.724753][T20585] block nbd4: NBD_DISCONNECT 13:45:16 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x01\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:16 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 830.960940][T20612] block nbd4: NBD_DISCONNECT 13:45:16 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00L\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:16 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x4000000) [ 831.044228][T20607] block nbd3: NBD_DISCONNECT [ 831.132871][T20641] block nbd4: NBD_DISCONNECT 13:45:17 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x02\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:17 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:17 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x600) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 831.519871][T20750] block nbd4: NBD_DISCONNECT 13:45:17 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00h\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 831.658829][T20751] block nbd3: NBD_DISCONNECT [ 831.670466][T20760] block nbd4: NBD_DISCONNECT 13:45:17 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x03\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:17 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:17 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, 0x0, 0x0) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 831.994024][T20781] block nbd4: NBD_DISCONNECT 13:45:17 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:17 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x5000000) [ 832.113602][T20792] block nbd4: NBD_DISCONNECT 13:45:17 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x04\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 832.247085][T20793] block nbd3: NBD_DISCONNECT [ 832.391645][T20815] block nbd3: NBD_DISCONNECT 13:45:18 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x700) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 832.522055][T20880] block nbd4: NBD_DISCONNECT 13:45:18 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:18 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 832.648320][T20931] block nbd4: NBD_DISCONNECT 13:45:18 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x05\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:18 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, 0x0, 0x0) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 832.834540][T20936] block nbd3: NBD_DISCONNECT 13:45:18 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 833.080282][T20964] block nbd4: NBD_DISCONNECT 13:45:18 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:18 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x6000000) [ 833.161837][T20971] block nbd4: NBD_DISCONNECT 13:45:19 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x06\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 833.377881][ C1] net_ratelimit: 2 callbacks suppressed [ 833.377890][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 833.389443][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 833.458318][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 833.464506][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 833.503770][T21087] block nbd4: NBD_DISCONNECT [ 833.505609][T20984] block nbd3: NBD_DISCONNECT 13:45:19 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:19 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3f00) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 833.647011][T21107] block nbd4: NBD_DISCONNECT [ 833.729438][T21080] block nbd3: NBD_DISCONNECT 13:45:19 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\a\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:19 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:19 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:19 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x4000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 834.062217][T21135] block nbd4: NBD_DISCONNECT 13:45:19 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x7000000) 13:45:19 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(0xffffffffffffffff, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 834.249199][T21149] block nbd4: NBD_DISCONNECT 13:45:20 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\b\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:20 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:20 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\xff\xff\xfd\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 834.590900][T21280] block nbd4: NBD_DISCONNECT 13:45:20 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(0xffffffffffffffff, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 834.658679][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 834.665243][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 834.729456][T21280] block nbd4: NBD_DISCONNECT 13:45:20 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\n\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 834.782903][T21294] block nbd3: NBD_DISCONNECT 13:45:20 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 834.945826][T21308] block nbd4: NBD_DISCONNECT 13:45:20 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\xff\xff\xff\xff\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 835.040309][T21316] block nbd4: NBD_DISCONNECT 13:45:20 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00@\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:20 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xff00) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 835.196443][T21317] block nbd3: NBD_DISCONNECT 13:45:21 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x8000000) [ 835.354680][T21386] block nbd3: NBD_DISCONNECT [ 835.420460][T21442] block nbd4: NBD_DISCONNECT 13:45:21 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:21 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x02\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 835.547058][T21456] block nbd4: NBD_DISCONNECT 13:45:21 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x1000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:21 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00H\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 835.805711][T21461] block nbd3: NBD_DISCONNECT [ 835.933689][T21488] block nbd3: NBD_DISCONNECT [ 835.938460][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 835.938520][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 835.985813][T21486] block nbd4: NBD_DISCONNECT 13:45:21 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 836.106604][T21495] block nbd4: NBD_DISCONNECT 13:45:21 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(0xffffffffffffffff, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:21 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:22 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00L\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:22 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3f000000) [ 836.337894][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 836.343798][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 836.449474][T21511] block nbd3: NBD_DISCONNECT 13:45:22 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x04\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 836.535670][T21521] block nbd4: NBD_DISCONNECT [ 836.679360][T21593] block nbd4: NBD_DISCONNECT 13:45:22 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:22 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x2000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:22 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00h\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:22 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 836.998100][T21656] block nbd3: NBD_DISCONNECT [ 837.029339][T21666] block nbd4: NBD_DISCONNECT [ 837.156227][T21678] block nbd3: NBD_DISCONNECT [ 837.216651][T21680] block nbd4: NBD_DISCONNECT 13:45:23 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:23 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00l\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:23 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:23 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, 0x0, 0x0) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:23 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x40000000) [ 837.563016][T21695] block nbd3: NBD_DISCONNECT [ 837.565166][T21697] block nbd4: NBD_DISCONNECT [ 837.668969][T21714] block nbd4: NBD_DISCONNECT [ 837.693795][T21717] block nbd3: NBD_DISCONNECT 13:45:23 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:23 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:23 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00t\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:23 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\a\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 838.031110][T21729] block nbd3: NBD_DISCONNECT [ 838.082732][T21803] block nbd4: NBD_DISCONNECT [ 838.200499][T21854] block nbd3: NBD_DISCONNECT [ 838.222175][T21861] block nbd4: NBD_DISCONNECT 13:45:24 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\b\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:24 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:24 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00z\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:24 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, 0x0, 0x0) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:24 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xf6ffffff) [ 838.560235][T21877] block nbd3: NBD_DISCONNECT [ 838.578550][T21885] block nbd4: NBD_DISCONNECT 13:45:24 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xff000000) 13:45:24 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\n\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 838.690136][T21898] block nbd3: NBD_DISCONNECT [ 838.701043][T21900] block nbd4: NBD_DISCONNECT 13:45:24 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\xbf\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:24 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:24 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x4000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 838.999294][T21923] block nbd4: NBD_DISCONNECT 13:45:24 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00H\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 839.108453][T21923] block nbd4: NBD_DISCONNECT [ 839.137939][ C0] net_ratelimit: 2 callbacks suppressed [ 839.137947][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 839.149376][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 839.169463][T21921] block nbd3: NBD_DISCONNECT 13:45:24 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 839.303571][T22047] block nbd3: NBD_DISCONNECT [ 839.417151][T22058] block nbd4: NBD_DISCONNECT 13:45:25 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:25 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00L\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 839.553968][T22061] block nbd4: NBD_DISCONNECT 13:45:25 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xfffffff6) [ 839.697958][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 839.703809][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 839.750241][T22071] block nbd3: NBD_DISCONNECT 13:45:25 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, 0x0, 0x0) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:25 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\xff\xff\xfd\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 839.858480][T22077] block nbd3: NBD_DISCONNECT 13:45:25 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x1000000000000) [ 839.950733][T22092] block nbd4: NBD_DISCONNECT 13:45:25 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:25 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00h\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 840.076887][T22104] block nbd4: NBD_DISCONNECT 13:45:25 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x5000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:26 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\xfd\xfd\xff\xff\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 840.306844][T22112] block nbd3: NBD_DISCONNECT 13:45:26 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 840.496226][T22236] block nbd4: NBD_DISCONNECT [ 840.561268][T22243] block nbd4: NBD_DISCONNECT 13:45:26 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:26 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:26 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 840.897894][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 840.903807][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:45:26 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x100000000000000) [ 840.980195][T22258] block nbd3: NBD_DISCONNECT [ 840.989393][T22261] block nbd4: NBD_DISCONNECT 13:45:26 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(0x0, 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 841.134395][T22281] block nbd4: NBD_DISCONNECT 13:45:26 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:27 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x6000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:27 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:27 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 841.495056][T22305] block nbd3: NBD_DISCONNECT [ 841.507595][T22387] block nbd4: NBD_DISCONNECT 13:45:27 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(0x0, 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 841.624131][T22424] block nbd4: NBD_DISCONNECT [ 841.649333][T22427] block nbd3: NBD_DISCONNECT 13:45:27 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:27 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:27 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:27 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x200000000000000) [ 841.926391][T22477] block nbd4: NBD_DISCONNECT [ 842.014335][T22443] block nbd3: NBD_DISCONNECT [ 842.098284][T22477] block nbd4: NBD_DISCONNECT 13:45:27 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 842.154651][T22565] block nbd3: NBD_DISCONNECT [ 842.177883][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 842.183792][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:45:28 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:28 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:28 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x7000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:28 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(0x0, 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 842.556595][T22579] block nbd3: NBD_DISCONNECT [ 842.577908][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 842.583888][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 842.637627][T22586] block nbd4: NBD_DISCONNECT 13:45:28 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 842.765597][T22607] block nbd4: NBD_DISCONNECT [ 842.779270][T22606] block nbd3: NBD_DISCONNECT 13:45:28 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:28 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x300000000000000) 13:45:28 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 843.008918][T22651] block nbd4: NBD_DISCONNECT 13:45:28 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 843.120320][T22712] block nbd4: NBD_DISCONNECT 13:45:29 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 843.251686][T22715] block nbd3: NBD_DISCONNECT 13:45:29 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x0) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 843.431872][T22737] block nbd3: NBD_DISCONNECT 13:45:29 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 843.509813][T22756] block nbd4: NBD_DISCONNECT 13:45:29 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x8000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:29 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 843.677047][T22756] block nbd4: NBD_DISCONNECT 13:45:29 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 843.855538][T22855] block nbd3: NBD_DISCONNECT 13:45:29 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x0) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 844.027573][T22902] block nbd4: NBD_DISCONNECT 13:45:29 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x400000000000000) 13:45:29 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\a\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:29 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 844.176357][T22910] block nbd4: NBD_DISCONNECT 13:45:30 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\b\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 844.416065][T22921] block nbd3: NBD_DISCONNECT 13:45:30 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\n\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 844.600385][T23035] block nbd4: NBD_DISCONNECT 13:45:30 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3f000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 844.639010][T22953] block nbd3: NBD_DISCONNECT 13:45:30 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:30 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x0) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 844.925031][T23062] block nbd4: NBD_DISCONNECT 13:45:30 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00?\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:30 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\n\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 845.057888][ C1] net_ratelimit: 4 callbacks suppressed [ 845.057897][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 845.069328][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 845.075895][T23060] block nbd3: NBD_DISCONNECT 13:45:30 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x500000000000000) [ 845.173760][T23083] block nbd3: NBD_DISCONNECT 13:45:31 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 845.341730][T23091] block nbd4: NBD_DISCONNECT [ 845.456383][T23098] block nbd4: NBD_DISCONNECT 13:45:31 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00@\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:31 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00@\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:31 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x40000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 845.774136][T23178] block nbd3: NBD_DISCONNECT [ 845.883016][T23223] block nbd4: NBD_DISCONNECT [ 846.030280][T23238] block nbd4: NBD_DISCONNECT 13:45:31 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:31 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00H\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:31 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00H\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:32 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x600000000000000) [ 846.337951][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 846.343835][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 846.378016][T23252] block nbd4: NBD_DISCONNECT 13:45:32 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(0x0) getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 846.427592][T23249] block nbd3: NBD_DISCONNECT [ 846.469189][T23264] block nbd4: NBD_DISCONNECT [ 846.585200][T23272] block nbd3: NBD_DISCONNECT 13:45:32 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00L\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:32 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00L\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:32 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xf6ffffff) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:32 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 846.906434][T23363] block nbd4: NBD_DISCONNECT [ 847.034237][T23397] block nbd4: NBD_DISCONNECT [ 847.138251][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 847.145403][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:45:32 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00h\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:32 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00h\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 847.262019][T23412] block nbd3: NBD_DISCONNECT 13:45:33 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x700000000000000) 13:45:33 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xff000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:33 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(0x0) getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 847.461918][T23432] block nbd3: NBD_DISCONNECT [ 847.496084][T23433] block nbd4: NBD_DISCONNECT 13:45:33 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 847.675367][T23455] block nbd4: NBD_DISCONNECT 13:45:33 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:33 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00l\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 847.923677][T23460] block nbd3: NBD_DISCONNECT [ 847.937876][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 847.944185][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 848.045469][T23478] block nbd4: NBD_DISCONNECT 13:45:33 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 848.121836][T23541] block nbd3: NBD_DISCONNECT [ 848.159753][T23563] block nbd4: NBD_DISCONNECT 13:45:33 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:34 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00t\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:34 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xfffffff6) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 848.417872][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 848.418896][T23597] block nbd3: NBD_DISCONNECT [ 848.423688][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:45:34 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x800000000000000) [ 848.515431][T23614] block nbd4: NBD_DISCONNECT 13:45:34 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:34 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(0x0) getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 848.652924][T23627] block nbd4: NBD_DISCONNECT [ 848.656963][T23624] block nbd3: NBD_DISCONNECT 13:45:34 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00z\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:34 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x1000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:34 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 848.930021][T23656] block nbd4: NBD_DISCONNECT 13:45:34 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 849.061983][T23768] block nbd4: NBD_DISCONNECT 13:45:34 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(0xffffffffffffffff, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 849.156603][T23755] block nbd3: NBD_DISCONNECT 13:45:34 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\xbf\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 849.286703][T23785] block nbd3: NBD_DISCONNECT [ 849.345881][T23792] block nbd4: NBD_DISCONNECT 13:45:35 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 849.439454][T23792] block nbd4: NBD_DISCONNECT 13:45:35 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:35 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(0xffffffffffffffff, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:35 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3f00000000000000) 13:45:35 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 849.697158][T23905] block nbd3: NBD_DISCONNECT 13:45:35 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x100000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 849.795861][T23925] block nbd4: NBD_DISCONNECT [ 849.923885][T23942] block nbd4: NBD_DISCONNECT 13:45:35 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x01\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:35 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:35 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\xff\xff\xfd\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 850.281261][T24051] block nbd3: NBD_DISCONNECT [ 850.347013][T24066] block nbd4: NBD_DISCONNECT 13:45:36 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x02\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 850.495442][T24076] block nbd4: NBD_DISCONNECT 13:45:36 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:36 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x4000000000000000) 13:45:36 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x02\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:36 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x200000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:36 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(0xffffffffffffffff, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:36 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 850.899284][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 850.906352][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 850.937701][T24100] block nbd3: NBD_DISCONNECT [ 850.959166][T24102] block nbd4: NBD_DISCONNECT [ 851.041506][T24105] block nbd4: NBD_DISCONNECT [ 851.100752][T24107] block nbd3: NBD_DISCONNECT 13:45:36 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x03\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:37 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:37 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x04\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 851.433069][T24143] block nbd4: NBD_DISCONNECT [ 851.529429][T24145] block nbd3: NBD_DISCONNECT [ 851.550928][T24212] block nbd4: NBD_DISCONNECT 13:45:37 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x8000000000000000) 13:45:37 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x04\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:37 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:37 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 851.864494][T24276] block nbd4: NBD_DISCONNECT 13:45:37 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x300000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 852.001061][T24286] block nbd4: NBD_DISCONNECT 13:45:37 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x05\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 852.098200][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 852.104641][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 852.135049][T24287] block nbd3: NBD_DISCONNECT [ 852.177872][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 852.184244][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:45:38 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, 0x0, 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 852.269074][T24307] block nbd3: NBD_DISCONNECT 13:45:38 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 852.345434][T24313] block nbd4: NBD_DISCONNECT 13:45:38 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 852.445433][T24322] block nbd4: NBD_DISCONNECT 13:45:38 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x06\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:38 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xf6ffffff00000000) 13:45:38 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, 0x0, 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 852.750091][T24445] block nbd4: NBD_DISCONNECT [ 852.765469][T24433] block nbd3: NBD_DISCONNECT 13:45:38 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\a\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 852.850566][T24452] block nbd4: NBD_DISCONNECT 13:45:38 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\a\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:38 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x400000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:38 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 853.113216][T24475] block nbd4: NBD_DISCONNECT 13:45:38 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\b\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 853.215768][T24506] block nbd4: NBD_DISCONNECT [ 853.344701][T24519] block nbd3: NBD_DISCONNECT 13:45:39 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\b\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 853.377883][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 853.507526][T24605] block nbd3: NBD_DISCONNECT [ 853.608883][T24614] block nbd4: NBD_DISCONNECT 13:45:39 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:39 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xff00000000000000) 13:45:39 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\n\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:39 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, 0x0, 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 853.741999][T24624] block nbd4: NBD_DISCONNECT 13:45:39 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\n\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 853.883411][T24625] block nbd3: NBD_DISCONNECT [ 854.047419][T24635] block nbd3: NBD_DISCONNECT 13:45:39 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x500000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:39 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00?\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 854.124558][T24654] block nbd4: NBD_DISCONNECT 13:45:39 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:40 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, 0x0, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 854.298175][T24706] block nbd4: NBD_DISCONNECT 13:45:40 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00H\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:40 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00@\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 854.618883][T24900] block nbd4: NBD_DISCONNECT 13:45:40 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, 0x0, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 854.657879][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 854.663789][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 854.670497][T24903] block nbd3: NBD_DISCONNECT 13:45:40 executing program 0: syz_open_dev$sg(&(0x7f0000000000)='/dev/sg#\x00', 0x2, 0x2e00) [ 854.774902][T24909] block nbd4: NBD_DISCONNECT 13:45:40 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:40 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00L\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:40 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x18, 0xfa00, {0x2, &(0x7f0000000000)={0xffffffffffffffff}, 0xe1a2db310d3042ab, 0xa}}, 0x20) write$RDMA_USER_CM_CMD_DISCONNECT(0xffffffffffffffff, &(0x7f0000000080)={0xa, 0x4, 0xfa00, {r0}}, 0xc) prctl$PR_SVE_SET_VL(0x32, 0x3aab7) [ 855.059077][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 855.082797][T24937] block nbd4: NBD_DISCONNECT [ 855.106402][T24927] block nbd3: NBD_DISCONNECT 13:45:40 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x600000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:40 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00H\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 855.200203][T24947] block nbd4: NBD_DISCONNECT [ 855.251054][T24945] block nbd3: NBD_DISCONNECT 13:45:41 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00h\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:41 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 855.539052][T24972] block nbd4: NBD_DISCONNECT 13:45:41 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, 0x0, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:41 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00L\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 855.668343][T24981] block nbd4: NBD_DISCONNECT [ 855.685907][T24975] block nbd3: NBD_DISCONNECT 13:45:41 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00l\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:41 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:41 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00h\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:41 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r0, 0x40286608, &(0x7f0000000040)={0x87}) write$apparmor_current(r0, &(0x7f0000000000)=@profile={'changeprofile ', '/dev/sg#\x00'}, 0x17) getsockname$inet(r0, &(0x7f00000001c0)={0x2, 0x0, @broadcast}, &(0x7f0000000200)=0x10) getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(0xffffffffffffffff, 0x84, 0x6f, &(0x7f0000000100)={0x0, 0x48, &(0x7f0000000080)=[@in={0x2, 0x4e24, @multicast1}, @in6={0xa, 0x4e21, 0x7, @empty, 0x9}, @in6={0xa, 0x4e20, 0x200, @local, 0xffffffd9}]}, &(0x7f0000000140)=0x10) setsockopt$inet_sctp6_SCTP_AUTH_DELETE_KEY(r0, 0x84, 0x19, &(0x7f0000000180)={r1, 0x3}, 0x8) [ 855.986091][T25008] block nbd4: NBD_DISCONNECT [ 856.165045][T25023] block nbd4: NBD_DISCONNECT 13:45:41 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x700000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 856.258638][ C1] net_ratelimit: 1 callbacks suppressed [ 856.258666][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 856.271084][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 856.302903][T25019] block nbd3: NBD_DISCONNECT 13:45:42 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00t\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 856.337900][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 856.343775][ C1] protocol 88fb is buggy, dev hsr_slave_1 13:45:42 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000), &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:42 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:42 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 856.616353][T25055] block nbd4: NBD_DISCONNECT [ 856.739317][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 856.746218][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 856.764227][T25071] block nbd4: NBD_DISCONNECT 13:45:42 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00z\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 856.880543][T25063] block nbd3: NBD_DISCONNECT 13:45:42 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 856.987600][T25079] block nbd4: NBD_DISCONNECT [ 857.038621][T25087] block nbd3: NBD_DISCONNECT [ 857.078353][T25097] block nbd4: NBD_DISCONNECT 13:45:42 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xbf\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:42 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:43 executing program 0: openat$uhid(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uhid\x00', 0x2, 0x0) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg*\x00', 0xfffffffffffc0001, 0xa00803) r0 = accept$inet6(0xffffffffffffffff, 0x0, &(0x7f0000000040)) r1 = socket(0x10, 0x3, 0x0) write(r1, &(0x7f0000000140)="2400000052001f0014f9f407112c04091c0007ed10001e550a000000090000000000", 0x22) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) dup3(r2, r3, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000d6cff0)=[@in={0x2, 0x4e20, @loopback}], 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, &(0x7f0000a8a000)=0xc) getsockopt$inet_sctp_SCTP_LOCAL_AUTH_CHUNKS(r1, 0x84, 0x1b, &(0x7f0000000140)=ANY=[@ANYRES32=r4, @ANYBLOB="168000005138c0f2"], &(0x7f0000000200)=0x2) getsockopt$inet_sctp6_SCTP_PARTIAL_DELIVERY_POINT(r0, 0x84, 0x13, &(0x7f0000000080)={r4, 0x6}, &(0x7f00000000c0)=0x8) 13:45:43 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:43 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) write$ppp(r1, &(0x7f0000000000)="fe082cad190f3a84155b54d8b0deef128c0f19d0526b1c6307157319e814be6de90b6a38d400", 0x26) [ 857.349815][T25112] block nbd4: NBD_DISCONNECT [ 857.356707][T25110] block nbd3: NBD_DISCONNECT 13:45:43 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x800000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 857.481652][T25130] block nbd4: NBD_DISCONNECT 13:45:43 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 857.523088][T25138] block nbd3: NBD_DISCONNECT [ 857.537873][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 857.543864][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 857.804545][T25155] block nbd4: NBD_DISCONNECT [ 857.835646][T25155] block nbd4: NBD_DISCONNECT 13:45:45 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000), &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:45 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:45 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:45 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x03\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:45 executing program 0: syz_open_dev$sg(&(0x7f00000000c0)='/dev/sg#\x00', 0x9, 0x8002) r0 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0xa0001) r1 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r1, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) setsockopt$SO_VM_SOCKETS_BUFFER_MAX_SIZE(r1, 0x28, 0x2, &(0x7f0000000100)=0x7f, 0x8) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) r2 = openat$ubi_ctrl(0xffffffffffffff9c, &(0x7f0000000380)='/dev/ubi_ctrl\x00', 0x260200, 0x0) ioctl$SNDRV_PCM_IOCTL_STATUS_EXT64(r2, 0xc0984124, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) ioctl$VIDIOC_QBUF(0xffffffffffffffff, 0xc058560f, &(0x7f0000000000)={0x0, 0x6, 0x4, 0x20000, 0x1, {}, {0x5, 0x2, 0xff, 0xc1, 0x8, 0x2, "e6728c1b"}, 0x4e0eadca, 0x2, @offset=0x800, 0x10001, 0x0, r0}) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$tipc(&(0x7f0000000040)='TIPC\x00') sendmsg$TIPC_CMD_SET_LINK_PRI(r4, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000000c0)=ANY=[@ANYBLOB='h\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="05000000000000000000010000000000000009410000000300180000001f657623193165a211fd00000000000000000000000000000000000000000000000000000000007100"/98], 0x68}}, 0x0) sendmsg$TIPC_CMD_SET_LINK_WINDOW(0xffffffffffffffff, &(0x7f0000000340)={&(0x7f0000000180)={0x10, 0x0, 0x0, 0x10000}, 0xc, &(0x7f0000000240)={&(0x7f00000001c0)={0x68, r5, 0x100, 0x70bd2a, 0x25dfdbfe, {{}, {}, {0x4c, 0x18, {0x1, @link='broadcast-link\x00'}}}, ["", "", "", "", "", "", "", "", ""]}, 0x68}, 0x1, 0x0, 0x0, 0x4000000}, 0x10) close(r3) 13:45:45 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x3f00000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 859.657718][T25180] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 859.714226][T25181] block nbd4: NBD_DISCONNECT [ 859.770351][T25180] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 859.831749][T25178] block nbd3: NBD_DISCONNECT [ 859.895592][T25203] block nbd4: NBD_DISCONNECT 13:45:45 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='?\xc8\xf1\xcc\x7f\x8b\xcf-\x00', 0x0, 0x10000) 13:45:45 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 859.936784][T25205] block nbd3: NBD_DISCONNECT 13:45:45 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x05\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:45 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:45 executing program 0: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x88c8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$inet6_mreq(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000100)={0x0, 0xfffffff0, &(0x7f0000000300)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2800000010005fba00"/20, @ANYRES32=0x0, @ANYBLOB="030000000000081108001b0000000000"], 0x28}}, 0x0) r1 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r1, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) setsockopt$inet_sctp6_SCTP_RESET_ASSOC(r1, 0x84, 0x78, &(0x7f0000000000), 0x4) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) [ 860.245782][T25223] block nbd4: NBD_DISCONNECT [ 860.281730][T25228] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 860.333568][T25225] block nbd3: NBD_DISCONNECT [ 860.349507][T25228] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready 13:45:46 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xff\xff\xfd\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 860.385417][T25223] block nbd4: NBD_DISCONNECT [ 860.404734][T25228] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 860.456189][T25242] block nbd3: NBD_DISCONNECT [ 861.048124][T25228] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 861.056736][T25228] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 861.064413][T25228] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready 13:45:48 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x4000000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:48 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x06\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:48 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:48 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xfd\xfd\xff\xff\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:48 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000), &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:45:48 executing program 0: syz_open_dev$sg(&(0x7f0000000040)='/dev/sg#\x00', 0x0, 0x34800) [ 862.805588][T25276] block nbd4: NBD_DISCONNECT [ 862.841193][T25270] block nbd3: NBD_DISCONNECT 13:45:48 executing program 0: r0 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r0, 0x40286608, &(0x7f0000000040)={0x87}) ioctl$TIOCSTI(r0, 0x5412, 0x80000000) [ 862.905030][T25276] block nbd4: NBD_DISCONNECT [ 862.930537][T25292] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 135 (only 16 groups) 13:45:48 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\a\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 862.977872][ C0] net_ratelimit: 4 callbacks suppressed [ 862.977880][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 862.989280][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:45:48 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:48 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:48 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) openat$ocfs2_control(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ocfs2_control\x00', 0x30000, 0x0) [ 863.129160][T25306] block nbd4: NBD_DISCONNECT [ 863.215157][T25314] block nbd4: NBD_DISCONNECT 13:45:49 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\n\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 863.315591][T25316] block nbd3: NBD_DISCONNECT [ 863.413111][T25329] block nbd4: NBD_DISCONNECT [ 863.432945][T25337] block nbd3: NBD_DISCONNECT [ 863.518013][T25343] block nbd4: NBD_DISCONNECT 13:45:49 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x8000000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:49 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:49 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:49 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00@\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 863.777877][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 863.783735][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 863.805382][T25365] block nbd4: NBD_DISCONNECT [ 863.900743][T25365] block nbd4: NBD_DISCONNECT [ 863.939969][T25380] block nbd3: NBD_DISCONNECT 13:45:51 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, 0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(0x0) 13:45:51 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:51 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00H\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:51 executing program 0: r0 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) r1 = socket$netlink(0x10, 0x3, 0x0) r2 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r2, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r2, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x1d7) sendmsg$nl_route(r1, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000340)=ANY=[@ANYBLOB="480000001000050700"/20, @ANYRES32=r3, @ANYBLOB="0000000000000000280012000c0001007665746800000000180002011400010000000000", @ANYRES32=0x0, @ANYBLOB="0000000000c76f4503775e3a23a7073ab87e54d66704d2654729"], 0x48}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000000c0)=@ipv4_newaddr={0x20, 0x14, 0x401, 0x0, 0x0, {0x2, 0x0, 0x0, 0x0, r3}, [@IFA_LOCAL={0x8, 0x2, @rand_addr=0x6}]}, 0x20}}, 0x0) getsockopt$inet_IP_IPSEC_POLICY(0xffffffffffffffff, 0x0, 0x10, &(0x7f0000000000)={{{@in=@empty, @in6=@local, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@initdev}, 0x0, @in=@empty}}, &(0x7f0000000100)=0xe8) setsockopt$inet_IP_IPSEC_POLICY(r0, 0x0, 0x10, &(0x7f0000000140)={{{@in6=@loopback, @in6=@ipv4={[], [], @local}, 0x4e22, 0x5b, 0x4e23, 0x0, 0x0, 0x20, 0xd0, 0x33, r3, r4}, {0x4d3, 0x4, 0x800, 0x8, 0xfffffffffffffff9, 0x3ff, 0x3f, 0xfffffffeffffffff}, {0x1, 0x7, 0x101, 0xfff}, 0x200, 0x6e6bbb, 0x921d97cbbc7b361c, 0x0, 0x2}, {{@in6=@mcast1, 0x4d4, 0x33}, 0xa, @in6=@loopback, 0x3505, 0x1, 0x1, 0x2, 0x0, 0x3, 0x9}}, 0xe8) 13:45:51 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:51 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xf6ffffff00000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 866.061045][T25400] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 866.111833][T25405] block nbd4: NBD_DISCONNECT [ 866.189085][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 866.190469][T25400] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 866.196541][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:45:52 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_init_net_socket$llc(0x1a, 0x1, 0x0) [ 866.270773][T25426] block nbd4: NBD_DISCONNECT 13:45:52 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00L\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:52 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:52 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 866.487605][T25441] block nbd4: NBD_DISCONNECT [ 866.593198][T25452] block nbd4: NBD_DISCONNECT 13:45:52 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00h\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 866.657943][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 866.663801][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 866.671080][T25445] block nbd3: NBD_DISCONNECT 13:45:52 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 866.811262][T25468] block nbd3: NBD_DISCONNECT [ 866.821331][T25470] block nbd4: NBD_DISCONNECT [ 866.941424][T25479] block nbd4: NBD_DISCONNECT 13:45:55 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, 0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(0x0) 13:45:55 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xff00000000000000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:45:55 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:55 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00l\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:55 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:55 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x7b3, 0x80840) ioctl$SNDCTL_DSP_GETBLKSIZE(0xffffffffffffffff, 0xc0045004, &(0x7f0000000000)) [ 869.356035][T25510] block nbd4: NBD_DISCONNECT [ 869.415188][T25495] block nbd3: NBD_DISCONNECT [ 869.459078][T25510] block nbd4: NBD_DISCONNECT 13:45:55 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f00000002c0)={@mcast1, 0x0, 0x0, 0x0, 0x5}, 0x20) sendmsg$TIPC_NL_LINK_RESET_STATS(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) getsockopt$IP_VS_SO_GET_INFO(r0, 0x0, 0x481, &(0x7f0000000000), &(0x7f0000000040)=0xc) 13:45:55 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00t\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:55 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 869.605315][T25529] block nbd3: NBD_DISCONNECT [ 869.617902][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 869.623764][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:45:55 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 869.653536][T25536] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 869.725341][T25544] block nbd4: NBD_DISCONNECT [ 869.819983][T25550] block nbd4: NBD_DISCONNECT 13:45:55 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00z\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:55 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\b\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 869.910185][T25551] block nbd3: NBD_DISCONNECT [ 870.017873][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 870.023772][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 870.050894][T25568] block nbd3: NBD_DISCONNECT [ 870.065622][T25569] block nbd4: NBD_DISCONNECT [ 870.175052][T25581] block nbd4: NBD_DISCONNECT 13:45:58 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, 0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(0x0) 13:45:58 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:58 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\n\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:45:58 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x181941, 0x20) ioctl$BLKBSZSET(r0, 0x40081271, &(0x7f0000000040)=0x6) 13:45:58 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\xbf\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:58 executing program 0: r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/mcfilter\x00') getsockopt$TIPC_SOCK_RECVQ_DEPTH(r0, 0x10f, 0x84, &(0x7f0000000040), &(0x7f0000000080)=0x4) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) [ 872.680630][T25606] block nbd4: NBD_DISCONNECT [ 872.785403][T25606] block nbd4: NBD_DISCONNECT 13:45:58 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 872.818894][T25607] block nbd3: NBD_DISCONNECT 13:45:58 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 872.938724][T25627] block nbd3: NBD_DISCONNECT [ 872.941622][T25630] block nbd4: NBD_DISCONNECT [ 872.977882][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 872.983696][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 873.043330][T25635] block nbd4: NBD_DISCONNECT 13:45:58 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:45:58 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x01\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 873.274132][T25653] block nbd4: NBD_DISCONNECT 13:45:59 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 873.296534][T25645] block nbd3: NBD_DISCONNECT [ 873.373913][T25662] block nbd4: NBD_DISCONNECT 13:45:59 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x02\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 873.642048][T25684] block nbd4: NBD_DISCONNECT [ 873.723032][T25684] block nbd4: NBD_DISCONNECT 13:46:01 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x0, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:01 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r0, 0x40286608, &(0x7f0000000040)={0x87}) ioctl$KVM_PPC_GET_SMMU_INFO(r0, 0x8250aea6, &(0x7f0000000000)=""/227) 13:46:01 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000200)={&(0x7f0000000040)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x2c, 0x2c, 0x4, [@func={0x2, 0x0, 0x0, 0xc, 0x3}, @fwd={0x0, 0x0, 0x0, 0x2}, @func_proto={0x0, 0x1, 0x0, 0xd, 0x2, [{0x0, 0x2}]}]}, {0x0, [0x0, 0x5f]}}, 0x0, 0x48}, 0x20) timer_settime(0x0, 0x0, 0x0, 0x0) 13:46:01 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:01 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00H\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:01 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x03\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 875.868964][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 875.875798][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 875.905335][T25711] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 135 (only 16 groups) [ 875.907239][T25714] block nbd4: NBD_DISCONNECT [ 875.959230][T25698] block nbd3: NBD_DISCONNECT [ 876.047491][T25714] block nbd4: NBD_DISCONNECT 13:46:01 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x04\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:01 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00L\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 876.119709][T25704] block nbd3: NBD_DISCONNECT 13:46:02 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 876.384564][T25776] block nbd4: NBD_DISCONNECT [ 876.486644][T25853] block nbd4: NBD_DISCONNECT [ 876.552296][T25827] block nbd3: NBD_DISCONNECT 13:46:02 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00h\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:02 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x05\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 876.687029][T25861] block nbd3: NBD_DISCONNECT 13:46:02 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/\t\x05\x04\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 876.848530][T25874] block nbd4: NBD_DISCONNECT 13:46:02 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x0, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:02 executing program 0: r0 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r0, 0x40286608, &(0x7f0000000040)={0x87}) ioctl$VIDIOC_QUERYBUF(r0, 0xc0585609, &(0x7f0000000000)={0x302a, 0x1, 0x4, 0x10, 0xa5b8, {0x0, 0x7530}, {0x4, 0x0, 0x9, 0x24, 0x7f, 0x0, "e0544feb"}, 0x1, 0x3, @fd, 0x7f, 0x0, 0xffffffffffffffff}) ioctl$PPPOEIOCDFWD(r1, 0xb101, 0x0) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) 13:46:02 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 877.016009][T25890] block nbd4: NBD_DISCONNECT 13:46:02 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:02 executing program 5: r0 = open(&(0x7f00009e1000)='./file0\x00', 0x200, 0x0) semctl$IPC_RMID(0x0, 0x0, 0x0) read$usbmon(r0, &(0x7f0000000000)=""/63, 0x3f) r1 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r1, 0x40286608, &(0x7f0000000040)={0x87}) ioctl$ASHMEM_SET_PROT_MASK(r1, 0x40087705, &(0x7f00000000c0)={0x9, 0x5}) syz_open_dev$sg(&(0x7f00000002c0)='\xf9\xff\xff\xffL\x00', 0x3, 0x101000) socket$inet6(0xa, 0x80000, 0xb6) timer_settime(0x0, 0x0, 0x0, 0x0) r2 = semget(0x2, 0x2, 0x100) ioctl$KDFONTOP_SET_DEF(r0, 0x4b72, &(0x7f0000000040)={0x2, 0x0, 0xc, 0x1, 0xf4, &(0x7f0000000300)="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"}) semctl$IPC_RMID(r2, 0x0, 0x0) socketpair$tipc(0x1e, 0x0, 0x0, &(0x7f0000000080)) ioctl$SIOCX25SFACILITIES(r1, 0x89e3, &(0x7f0000000100)={0x37, 0x9, 0x8, 0x7, 0x2, 0x102}) 13:46:03 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x06\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 877.248939][T25896] block nbd3: NBD_DISCONNECT [ 877.308866][T25915] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 135 (only 16 groups) [ 877.375438][T25919] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 135 (only 16 groups) [ 877.490914][T25943] block nbd4: NBD_DISCONNECT 13:46:03 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:03 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) r0 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) sendto$isdn(r0, &(0x7f0000000080)={0x7, 0x2, "895399b5132c18ab6165d284c11fe383c8f04a93d3db9475cdce6fbbc742d3e9d69825cffd1cfbc8a2ed390d71553d5e69e5750de3c34bdb4579f39d1fe1a031fa6321ffc52e4cc79b0f9f485a9bf822c7ccdb58b68e9f4252920b18328070bf422f09e347a53a745e8581e29ee4bca4951aba3c832ae8a80353ef8b8b2d98cba6eea5eeb6372091222178412251c44ba3f7465286712e357f7fcdf102b9f7759484734e39ae66a3ae764e"}, 0xb3, 0xc003, &(0x7f0000000140)={0x22, 0x80, 0x7, 0x1f, 0x7f}, 0x6) timer_settime(0x0, 0x0, 0x0, 0x0) r1 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r1, 0x40286608, &(0x7f0000000040)={0x87}) write$vhci(r1, &(0x7f0000000000)=@HCI_EVENT_PKT={0x4, "f29be868817af956b5ebb818b7ba4464f8b4e34c7b87f05d9deb41e85f3c5fdba8fe7d6a1284cd5dbf6b5d"}, 0x2c) 13:46:03 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 877.645791][T26040] block nbd4: NBD_DISCONNECT 13:46:03 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\a\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:03 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x0, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 877.899371][T26051] block nbd3: NBD_DISCONNECT [ 877.908566][T25899] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 4294967295 (only 16 groups) [ 877.933506][T26062] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 877.942220][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 877.942275][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:46:03 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 878.015418][T26074] block nbd3: NBD_DISCONNECT [ 878.024389][T26069] block nbd4: NBD_DISCONNECT [ 878.052295][T26062] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 135 (only 16 groups) 13:46:03 executing program 0: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) ioctl$TUNSETLINK(r1, 0x400454cd, 0x1) getsockopt$inet_sctp6_SCTP_PR_STREAM_STATUS(0xffffffffffffffff, 0x84, 0x74, &(0x7f0000000040)=""/51, &(0x7f0000000080)=0x33) syz_open_dev$admmidi(&(0x7f0000000000)='/d\x00\x00\x00\x00\x00\x00\x00\x00di#\x00', 0x0, 0x800) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) [ 878.142900][T26075] block nbd4: NBD_DISCONNECT 13:46:03 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:04 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\b\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:04 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 878.493644][T26207] block nbd4: NBD_DISCONNECT 13:46:04 executing program 0: syz_open_dev$sg(&(0x7f0000000000), 0x0, 0x210001) [ 878.525182][T26171] block nbd3: NBD_DISCONNECT 13:46:04 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, 0x0) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 878.647107][T26219] block nbd3: NBD_DISCONNECT [ 878.656841][T26216] block nbd4: NBD_DISCONNECT [ 878.662631][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 878.663184][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 878.679533][T26223] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable 13:46:04 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\n\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:04 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) fstat(0xffffffffffffffff, &(0x7f0000000000)) 13:46:04 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) ioctl$DRM_IOCTL_MAP_BUFS(0xffffffffffffffff, 0xc0186419, &(0x7f0000001540)={0x6, &(0x7f0000000040)=""/40, &(0x7f0000001480)=[{0x1, 0x94, 0x2, &(0x7f0000000080)=""/148}, {0x0, 0xb2, 0x9, &(0x7f0000000140)=""/178}, {0x10001, 0x1000, 0xfe1c, &(0x7f0000000300)=""/4096}, {0x6, 0x8a, 0x80000001, &(0x7f0000000200)=""/138}, {0x6, 0x42, 0x9, &(0x7f0000001300)=""/66}, {0x8db4, 0xc8, 0x5, &(0x7f0000001380)=""/200}]}) r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r2, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) r3 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000001600)='/dev/sequencer2\x00', 0x0, 0x0) ioctl$VHOST_VSOCK_SET_GUEST_CID(r3, 0x4008af60, &(0x7f0000001640)={@local}) sendmsg$TIPC_NL_LINK_RESET_STATS(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) ioctl$SIOCGSTAMPNS(0xffffffffffffffff, 0x8907, &(0x7f00000015c0)) ioctl$VIDIOC_S_STD(r1, 0x40085618, &(0x7f0000000000)=0x10) 13:46:04 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:04 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 879.018389][T26251] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 879.050014][T26252] block nbd4: NBD_DISCONNECT [ 879.105149][T26243] block nbd3: NBD_DISCONNECT [ 879.138590][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 879.183156][T26267] block nbd4: NBD_DISCONNECT 13:46:05 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00@\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:05 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:05 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\xff\xff\xfd\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 879.428000][T26383] block nbd4: NBD_DISCONNECT [ 879.551898][T26394] block nbd4: NBD_DISCONNECT 13:46:05 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, 0x0) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 879.659970][T26391] block nbd3: NBD_DISCONNECT 13:46:05 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00H\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:05 executing program 0: r0 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) ioctl$SG_SET_COMMAND_Q(r0, 0x2271, &(0x7f0000000100)) r1 = openat$zero(0xffffffffffffff9c, &(0x7f0000000080)='/dev/zero\x00', 0x22200, 0x0) r2 = syz_open_dev$mice(&(0x7f00000007c0)='/dev/input/mice\x00', 0x0, 0x400100) setsockopt$inet_sctp6_SCTP_ADAPTATION_LAYER(r2, 0x84, 0x7, &(0x7f0000000800), 0x4) ioctl$VIDIOC_G_AUDIO(r1, 0x80345621, &(0x7f00000000c0)) setsockopt$SO_J1939_FILTER(0xffffffffffffffff, 0x6b, 0x1, &(0x7f0000000140)=[{0x1, 0x2, {0x0, 0x0, 0x4}, {0x0, 0x101}, 0x2, 0x183}, {0x1, 0x2, {0x0, 0x0, 0x3}, {0x0, 0x0, 0x1}}, {0x1, 0x0, {0x0, 0x1, 0x1}, {0x1, 0xff, 0x3}, 0x0, 0xfe}], 0x60) 13:46:05 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 879.854898][T26417] block nbd4: NBD_DISCONNECT 13:46:05 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:05 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(&(0x7f0000000000)='/dev/sg#\x00', 0x1ff, 0x4000) socket$inet6(0xa, 0x0, 0x0) r0 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) r1 = openat$qat_adf_ctl(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/qat_adf_ctl\x00', 0x604082, 0x0) r2 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r2, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) getsockopt$inet_sctp6_SCTP_RESET_STREAMS(r2, 0x84, 0x77, &(0x7f0000000100)={0x0, 0x0, 0x1, [0x2]}, &(0x7f0000000180)=0xa) setsockopt$inet_sctp_SCTP_AUTH_DELETE_KEY(r1, 0x84, 0x19, &(0x7f00000001c0)={r3, 0x4}, 0x8) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) ioctl$FS_IOC_SET_ENCRYPTION_POLICY(r0, 0x800c6613, &(0x7f0000000040)=@v1={0x0, @aes128, 0x3, "a1506f032b17e7f6"}) timer_settime(0x0, 0x0, 0x0, 0x0) [ 880.032423][T26472] block nbd4: NBD_DISCONNECT 13:46:05 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00L\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 880.305582][T26549] block nbd3: NBD_DISCONNECT 13:46:06 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x02\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 880.474673][T26559] block nbd4: NBD_DISCONNECT 13:46:06 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 880.626421][T26576] block nbd4: NBD_DISCONNECT 13:46:06 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00h\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:06 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, 0x0) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:06 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 880.829978][T26583] block nbd3: NBD_DISCONNECT 13:46:06 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r0, 0x40286608, &(0x7f0000000040)={0x87}) ioctl$VIDIOC_TRY_DECODER_CMD(r0, 0xc0485661, &(0x7f0000000000)={0x94a42be88d43dfe2, 0x2, @raw_data=[0x80000000, 0x80000001, 0x3ad, 0x1, 0x401, 0x4643, 0x80000000, 0xc126, 0x7, 0x7, 0x0, 0xe07, 0x51c4, 0x0, 0xff, 0x583]}) [ 880.961774][T26597] block nbd4: NBD_DISCONNECT [ 881.004746][T26607] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 135 (only 16 groups) 13:46:06 executing program 5: r0 = open(&(0x7f0000000000)='./file0\x00', 0x8002, 0x9f33335c0290b2d8) ioctl$KVM_SET_ONE_REG(r0, 0x4010aeac, &(0x7f0000000040)={0x0, 0x9}) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 881.100232][T26621] block nbd4: NBD_DISCONNECT 13:46:06 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:07 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00l\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:07 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x04\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 881.501750][T26670] block nbd3: NBD_DISCONNECT [ 881.523940][T26748] block nbd4: NBD_DISCONNECT 13:46:07 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 881.655881][T26762] block nbd4: NBD_DISCONNECT [ 881.665925][T26761] block nbd3: NBD_DISCONNECT [ 881.697919][ C0] net_ratelimit: 6 callbacks suppressed [ 881.697928][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 881.709408][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:46:07 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00t\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:07 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:07 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) ioctl$VIDIOC_S_EDID(0xffffffffffffffff, 0xc0285629, &(0x7f0000000040)={0x0, 0xfff, 0xffffffff, [], &(0x7f0000000000)=0x1}) 13:46:07 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 882.053790][T26781] block nbd4: NBD_DISCONNECT [ 882.107872][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 882.113760][ C0] protocol 88fb is buggy, dev hsr_slave_1 13:46:07 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, 0x0, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:07 executing program 5: syz_open_dev$sg(&(0x7f0000000040)='/dev/sg#\x00', 0x0, 0x21c80) r0 = openat$pfkey(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/net/pfkey\x00', 0x400000, 0x0) name_to_handle_at(r0, &(0x7f0000000080)='./file0\x00', &(0x7f00000000c0)=ANY=[@ANYBLOB="c6000000a2030000ba7242aa00000000010000001f2914a22540222f9c76d20fea078718ee7e70cf0c48d0d39192ae3417cd1fe3cf926c8c41cbd9e610009c934d6bbe07dc5e30e86e422755b2b78f2c36855d98f90a50c774c284c141e85a033fe82fe19b919011d5682136aa137a4f421813a355de1dc398bb5d0f123cd816fbede5b8a6a9f148628dc31b63914875a3a0b15048a0d00e1563f0cee8176174189f58ecffd1b189e3bfa22586b8a635d387e2946780adff43cacaadfd5531ccd7dd329515043f5c05e64f9f7d05bd36ada8bfd4b698abd57d7c80dd3d19"], &(0x7f00000001c0), 0x1c00) socket$inet6(0xa, 0x0, 0x0) inotify_init1(0x80400) timer_settime(0x0, 0x0, 0x0, 0x0) [ 882.271535][T26803] block nbd4: NBD_DISCONNECT 13:46:08 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:08 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00z\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:08 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\a\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 882.698044][T26830] block nbd3: NBD_DISCONNECT 13:46:08 executing program 5: syz_open_dev$sg(&(0x7f0000000080)='/dev/sg\xee\xcd', 0x0, 0x107342) socket$inet6(0xa, 0x0, 0x0) r0 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) r1 = socket(0x10, 0x3, 0x0) write(r1, &(0x7f0000000140)="2400000052001f0014f9f407112c04091c0007ed10001e550a000000090000000000", 0x22) r2 = socket$inet(0x2, 0x4000000805, 0x0) r3 = socket$inet_sctp(0x2, 0x5, 0x84) dup3(r2, r3, 0x0) r4 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r4, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r4, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) listen(r4, 0x517) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r3, 0x84, 0x64, &(0x7f0000d6cff0)=[@in={0x2, 0x4e20, @loopback}], 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r3, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, &(0x7f0000a8a000)=0xc) getsockopt$inet_sctp_SCTP_LOCAL_AUTH_CHUNKS(r1, 0x84, 0x1b, &(0x7f0000000140)=ANY=[@ANYRES32=r5, @ANYBLOB="168000005138c0f2"], &(0x7f0000000200)=0x2) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r0, 0x84, 0x66, &(0x7f00000000c0)={r5}, &(0x7f0000000100)=0x8) timer_settime(0x0, 0x0, 0x0, 0x0) r6 = getpid() sched_setscheduler(r6, 0x5, &(0x7f0000000380)) capset(&(0x7f0000000000)={0x0, r6}, &(0x7f0000000040)={0x0, 0xfffffffe, 0xc4, 0x4, 0x5, 0x43}) [ 882.747514][T26838] block nbd4: NBD_DISCONNECT [ 882.823335][T26850] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 882.866562][T26844] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 882.897570][T26857] block nbd4: NBD_DISCONNECT 13:46:08 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\xbf\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:08 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) r1 = dup2(0xffffffffffffffff, r0) ioctl$DRM_IOCTL_AGP_UNBIND(r1, 0x40106437, &(0x7f0000000000)={0x0, 0x3}) 13:46:08 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:08 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\b\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 882.944111][T26850] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 882.971394][T26850] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 883.100391][T26870] block nbd4: NBD_DISCONNECT 13:46:08 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) timer_gettime(0x0, &(0x7f0000000000)) [ 883.161268][T26870] block nbd4: NBD_DISCONNECT 13:46:09 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 883.297926][ C1] protocol 88fb is buggy, dev hsr_slave_0 [ 883.303779][ C1] protocol 88fb is buggy, dev hsr_slave_1 [ 883.310037][T26875] block nbd3: NBD_DISCONNECT [ 883.422728][T26904] block nbd3: NBD_DISCONNECT [ 883.452325][T26894] block nbd4: NBD_DISCONNECT [ 883.525480][T26903] block nbd4: NBD_DISCONNECT 13:46:11 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, 0x0, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:11 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\n\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:11 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:11 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = dup(0xffffffffffffffff) read(r0, &(0x7f0000000000)=""/25, 0xfffffffffffffe6b) 13:46:11 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xff\xff\xfd\xfd\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:11 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 885.627181][T26936] block nbd4: NBD_DISCONNECT [ 885.684287][T26920] block nbd3: NBD_DISCONNECT 13:46:11 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00H\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 885.798905][T26936] block nbd4: NBD_DISCONNECT 13:46:11 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\xfd\xfd\xff\xff\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 885.923580][T26958] block nbd3: NBD_DISCONNECT 13:46:11 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 886.048760][T26966] block nbd4: NBD_DISCONNECT 13:46:11 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00L\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 886.119450][T26971] block nbd4: NBD_DISCONNECT 13:46:11 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 886.268927][T26979] block nbd3: NBD_DISCONNECT [ 886.348735][T26990] block nbd4: NBD_DISCONNECT 13:46:12 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0xe53572c3f91a3663) [ 886.432532][T26998] block nbd3: NBD_DISCONNECT [ 886.487060][T27009] block nbd4: NBD_DISCONNECT 13:46:14 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, 0x0, &(0x7f0000000000)) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:14 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00h\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:14 executing program 5: modify_ldt$read_default(0x2, &(0x7f0000000000)=""/135, 0x87) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) 13:46:14 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:14 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:14 executing program 0: lsetxattr$trusted_overlay_nlink(&(0x7f0000000100)='./file0\x00', &(0x7f0000000140)='trusted.overlay.nlink\x00', &(0x7f0000000180)={'L+', 0x2}, 0x16, 0x1) r0 = add_key$keyring(&(0x7f0000000000)='keyring\x00', &(0x7f0000000040)={'syz', 0x1}, 0x0, 0x0, 0xfffffffffffffffd) keyctl$KEYCTL_RESTRICT_KEYRING(0x1d, r0, &(0x7f0000000080)='user\x00', &(0x7f00000000c0)=@secondary='builtin_and_secondary_trusted\x00') syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) openat$hwrng(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/hwrng\x00', 0x440, 0x0) [ 888.906453][T27030] block nbd3: NBD_DISCONNECT [ 888.919830][T27038] block nbd4: NBD_DISCONNECT 13:46:14 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00l\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 889.059461][T27058] block nbd4: NBD_DISCONNECT [ 889.067866][ C0] net_ratelimit: 2 callbacks suppressed [ 889.067874][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 889.079522][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 889.088471][T27044] block nbd3: NBD_DISCONNECT 13:46:14 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:14 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00?\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:15 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00t\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 889.311924][T27073] block nbd4: NBD_DISCONNECT [ 889.410144][T27089] block nbd4: NBD_DISCONNECT 13:46:15 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 889.483289][T27076] block nbd3: NBD_DISCONNECT 13:46:15 executing program 0: recvmmsg(0xffffffffffffffff, &(0x7f0000001ac0)=[{{&(0x7f0000000000)=@pppoe={0x18, 0x0, {0x0, @random}}, 0x80, &(0x7f0000000400)=[{&(0x7f0000000080)=""/55, 0x37}, {&(0x7f00000000c0)=""/237, 0xed}, {&(0x7f00000001c0)=""/33, 0x21}, {&(0x7f0000000200)=""/71, 0x47}, {&(0x7f0000000300)=""/107, 0x6b}, {&(0x7f0000000380)=""/116, 0x74}], 0x6}, 0x8}, {{&(0x7f0000000480)=@nfc, 0x80, &(0x7f0000000280)=[{&(0x7f0000000500)=""/100, 0x64}, {&(0x7f0000000580)=""/180, 0xb4}], 0x2, &(0x7f0000000640)=""/8, 0x8}, 0x1}, {{&(0x7f0000000680)=@pppol2tpv3in6={0x18, 0x1, {0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, {0xa, 0x0, 0x0, @initdev}}}, 0x80, &(0x7f0000001a40)=[{&(0x7f0000000700)=""/97, 0x61}, {&(0x7f0000000780)=""/177, 0xb1}, {&(0x7f0000000840)=""/87, 0x57}, {&(0x7f00000008c0)=""/253, 0xfd}, {&(0x7f00000009c0)=""/106, 0x6a}, {&(0x7f0000000a40)=""/4096, 0x1000}], 0x6}, 0x400}], 0x3, 0x10000, 0x0) getsockopt$inet_dccp_buf(r0, 0x21, 0x2, &(0x7f0000001b80)=""/70, &(0x7f0000001c00)=0x46) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) [ 889.649551][T27101] block nbd4: NBD_DISCONNECT [ 889.764593][T27111] block nbd4: NBD_DISCONNECT 13:46:17 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, 0x0) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:17 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00z\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:17 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:17 executing program 5: r0 = add_key$user(&(0x7f0000000280)='user\x00', &(0x7f0000000240)={'syz'}, &(0x7f0000000300)='\a', 0x1, 0xfffffffffffffffe) r1 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r1, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setreuid(0x0, r2) keyctl$chown(0x4, r0, r2, 0x0) r3 = openat$audio(0xffffffffffffff9c, &(0x7f0000000180)='/dev/audio\x00', 0x0, 0x0) ioctl$int_in(r3, 0x800000c004500a, &(0x7f0000000040)) r4 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r4, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) fstat(r4, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r6 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r6, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r6, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) ioctl$VIDIOC_QUERYBUF(0xffffffffffffffff, 0xc0585609, &(0x7f00000004c0)={0x7, 0x5, 0x4, 0x70000, 0xcd70, {0x0, 0x7530}, {0x2, 0x0, 0x45, 0x3, 0x7, 0x30, 'X+\f\\'}, 0x38b, 0x3, @userptr=0x2, 0x3, 0x0, r6}) r8 = syz_genetlink_get_family_id$ipvs(&(0x7f00000005c0)='IPVS\x00') sendmsg$IPVS_CMD_NEW_SERVICE(r7, &(0x7f0000000680)={&(0x7f0000000200)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000640)={&(0x7f0000000600)={0x24, r8, 0x200, 0x70bd2a, 0x25dfdbff, {}, [@IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x2}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x30c5}]}, 0x24}, 0x1, 0x0, 0x0, 0x4000}, 0x4) shmctl$IPC_SET(0x0, 0x1, &(0x7f0000000300)={{0x0, 0x0, r5}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f}) getgroups(0x1, &(0x7f00000000c0)=[r5]) setsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000100)={0x0, r2, r9}, 0xc) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r10 = socket$inet6(0xa, 0x0, 0x0) setsockopt$inet6_int(r10, 0x29, 0x19, &(0x7f0000000040)=0xddb8, 0x4) timer_settime(0x0, 0x0, 0x0, 0x0) r11 = socket(0xa, 0x2, 0x0) r12 = openat$proc_capi20ncci(0xffffffffffffff9c, &(0x7f0000000140)='/proc/capi/capi20ncci\x00', 0x1, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r12, 0xc1105511, &(0x7f0000000380)={{0x1, 0x3, 0x1, 0x8, '\x00', 0x6}, 0x4, 0x1, 0xfffffe00, 0x0, 0x2, 0x6, 'syz0\x00', &(0x7f00000001c0)=['user\x00', '*\'vmnet1cpuset\x00'], 0x14, [], [0x8000, 0x0, 0xff, 0x7]}) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r11, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) r13 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r13, 0x40286608, &(0x7f0000000040)={0x87}) ioctl$PERF_EVENT_IOC_QUERY_BPF(r13, 0xc008240a, &(0x7f00000006c0)=ANY=[@ANYBLOB="0400398364418b7092b30077768457000000000000000000c49b4338a49f995749a5a79b74f002cff669131db04b57f4764b1b8d46dabdaa37c8938c5ab3d9489f448bfb75e53cb4433da43c15bd995f3c92aeaac007c8611db8612e893b03d3e0aa3069071faaa8310eb3a8568883aafeefcb1831efa4f1fcebf658f43e4d13639572be6f2a699edf02577d1898fa24bb8b4737020000003a08903cf77fd55cf8ba43b681245ea6a5a69c9836300591a009ea2ac5d8c974f0f86ff7f96c166e12ff"]) sendmsg$TIPC_NL_LINK_RESET_STATS(r11, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) ioctl$SIOCAX25DELFWD(r11, 0x89eb, &(0x7f0000000000)={@bcast, @rose={0xbb, 0xbb, 0xbb, 0x1, 0x0}}) 13:46:17 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:17 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = socket(0xa, 0x2, 0x0) r1 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) clock_gettime(0x0, &(0x7f000000b180)={0x0, 0x0}) ioctl$VIDIOC_QBUF(r2, 0xc058560f, &(0x7f000000b200)={0x81, 0x0, 0x4, 0x84201080, 0x6, {r3, r4/1000+30000}, {0x1, 0x1, 0xf5, 0x71, 0x0, 0x81, "caffaea6"}, 0x6, 0x4, @planes=&(0x7f000000b1c0)={0x6, 0x75, @userptr=0xfffffffffffffffd, 0xd609288}, 0x40, 0x0, 0xffffffffffffffff}) read$char_usb(r5, &(0x7f000000b280)=""/223, 0xdf) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) r6 = accept4$x25(r0, &(0x7f0000000000), &(0x7f0000000040)=0x12, 0x80800) sendmmsg(r6, &(0x7f000000acc0)=[{{&(0x7f0000000080)=@un=@abs={0x0, 0x0, 0x4e22}, 0x80, &(0x7f0000000480)=[{&(0x7f0000000100)="3b110b55ab428b69f946a953d6bd7d2b326494c213b3da530b35a1f7ba73dba2bd51a22ac2e908820abdb4b1edeb217ed0ac892bb1c0ae360551ff72bea741d1ae1eb7c4f945cf1a0bcff4eb1f73f0857da6d178559750a5952804528e0cfd11814b8c6d350db12115a9042170f1f77281739977ede4d673d76631176a3f5011832cdcef7a57d76a3fe690090f044d0ff63fc1deffebf0e82893a4b6a0ea0d44814a8f5a32d7e31d851f4656155abea02cb23d9963739fe840fe94be", 0xbc}, {&(0x7f00000001c0)="dd9985b02caed737742e854b10e8", 0xe}, {&(0x7f0000000200)="5b80b93dda69ea63924a000972763a9976008048b242f4500a69e2e407f0980384305cf992777ef80e0145b044d52ad5a1ca29dd2d131d31dd220834a10f383411beff4d87207eb94d9a68e47e6c1390934ad385c0b3bea3e5282790a6dbfaedc9caa4bc558d8eff66ab45ec4e8f180185f517", 0x73}, {&(0x7f0000000280)="c53cbd8c75f60635da3c4f8a545008e7ac6d4c0059d502d246038aac48d1721eba09791838b0696d044537cac34e5d7ed9bbc925", 0x34}, {&(0x7f0000000300)="56bd567e2d62d23cc1e11177fa3ed48a69a26fac1850b61af61c430a3ca00a485e875f6db0e73ee58ef0e8c4cc3bfbc4e9629b8a3455c8b13c0a4ce75f6e4b8aacd582b438d85872f312972b9ed04f97d2958fe68f3cf29945a0e19ae0aa8e04597040c9e9e9f6af6c47121f9ac267c4d87a1538ef43d4", 0x77}, {&(0x7f0000000380)="9096cf2b6895ec88a28f69b58d39424d39cb2cbb058a2611d4c17ccaa6db2df5bcf7f48b41d3f4f5186c889ce6d0f475719ba165fdbe378d58c7412acbebac5e5c586ae2bdfbc928a924b9e4681acb62bcac53e643730bc4bc43897bdf8cf50b6c3f18c35e4c", 0x66}, {&(0x7f0000000400)="4e5bdfff939450a6b3f6542f9280fe79681f6f5b844d", 0x16}, {&(0x7f0000000440)="1b10f2244410c297daf485386501e3797ed6c47098d58d0308581392eaf8e662766cfd7ccc3a518e64dc49fcea112812ff28c07d39e404053f283cd5363486", 0x3f}], 0x8}}, {{&(0x7f0000000500)=@ethernet={0x1, @random="d6635d20f5ec"}, 0x80, &(0x7f0000001900)=[{&(0x7f0000000580)="56f64eafc63d4867e9fd5cb63b8fe7e418bbc37fb74970b0e0c82be9b99252", 0x1f}, {&(0x7f00000005c0)="8ac8e8e29f5470a5c4516252d21dfb60c74a75ac0b3debafdc2540c2548db554cd031900d92a8e3760ea0cc29803aa5a71a8797e12a2244242057439ce67519825c57650ba5808bb9caad774f9d00359488adc0edffc68c63b4ee9ae93ccadda80b377df99c471bdf2042a199ee066876c66a9f3a926e98f484d646d85d803", 0x7f}, {&(0x7f0000000640)="671f114d9e401cdbd29ca51091c33ba42f0f42f057ed67abb6cd1f32d98c3c974a13c764688fbf6a2553899a5a831ae4a6485726b572d86c733256088adbe2b4e530a8575e286bd42a93c43d6fb14e109b5b903fad9e487a87370c0832adaa65fe09af1f2745cc72f736fad89e845920eb871e5adee43b3140a4315790310c7999ad66b4ba1d6935321819b2d51767c9ad77d287183ce1c0164cb46ea730b690fcb2b657254a1e28", 0xa8}, {&(0x7f0000000700)}, {&(0x7f0000000740)="2d26750d1271552c08af82df5727ea3a966341bf1ef43c04ecd10acda90f313a821c74e397cd78a37d046fb0ef0e09f29c1cb1fc746f9238f1a3e4d636355c17900eecb92dd28f9d79f78e502a72a2e2521241d6e9661dde1a892058639d458b7134795c9582e93fa619990a29fed8d2ed0690db6d9f49c1d025a680f6c8569371a4b216768311bc7502de301845dde3fefa719c54c466ce3536b917246d57e5bbe24879814e0b547c9b67aa913da58e20aa94e8cd557fc8af3a9ecc48ce9f0ca2309e630b9399a51c90e3900c88dca6dd6cb3d68004bd545138ad0dde82e5f50e557583bf8ec7ba452ab26bfc", 0xed}, 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0x3280}}, {{&(0x7f000000a980)=@pptp={0x18, 0x2, {0x3, @loopback}}, 0x80, &(0x7f000000aa80)=[{&(0x7f000000aa00)="e7467a4ed2aa70fc3ebefb8748768425ceb553a10585a26727e707a268324bb2aca63809e49148edf5b3d17e98fabac632a878f925ccbc87f2fb899434c00ed7ff44e967bca6772514309763e31d5aac692a85229e448ba0c921d585a471a2b45cf862669d1f43f08e75e844d6f5cec49b2f7d6817d4e49cb5aba627dc7f35", 0x7f}], 0x1, &(0x7f000000aac0)=[{0x38, 0x114, 0x6, "25cb8f36f4fd1603d7fff861580b465e4648117a353f084c5f5cc5e994ced56f9bf9a3485f3fcb2e"}, {0xb8, 0x114, 0x76b7, "6cc1b8724e40c0c8852e9dbe1f6d4bccf8b86de00850b101fbb0221283b9f0c1b9edf8627a7bbc2730735471cc627f300077934164f6857ef4717b1d9a9c7d302780f3496cba5ee3cea271e1ea0295c40addc27123a89764e28fa09caa75d5eedf7f9c45fd9bcd7856f9e0f5447456fffe7357bfa42932e3a2a8bf656aa6265d9037cc5d5b923741577d04ccaf7da0767b080b4083f24048bda009587ca6d21093f192bd"}, {0x100, 0x10b, 0x6, "8074a4bf5e9ce8f127d1c10bde633d213aa83e6c37d3a53a582e1ba1a8d0f0c63089f4e1011498a29b08de5adf84446e0ab535f173726c10ab74b407f7dc0cca28edc97a7055a8b92e19120c607c2c622cb09bb3b375bc4373fee6be2b0b04abac73e47af91f6bb1adc60a2329ba280693fedb7803364c01ebb779569b1bd01559a9a1b0df9487af9ee3e7ac9406d7e4c5e424619c3f1d8f91a6d1a9ed362e385e8191a37e3d154d14ac111920961122117735435c61fd82d99953e6c713f9d12fcbec85e635591a0b7d8f6e75f3c831de95b9cd00cbaf2b5e4d3126f133f6a5a2df099bbf50d1260d41e928"}], 0x1f0}}], 0x8, 0xc4) r7 = accept$nfc_llcp(r0, &(0x7f000000aec0), &(0x7f0000000700)=0x60) r8 = openat$dlm_control(0xffffffffffffff9c, &(0x7f0000006000)='/dev/dlm-control\x00', 0x40000, 0x0) r9 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r9, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r9, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) ioctl$sock_SIOCGPGRP(r9, 0x8904, &(0x7f000000af40)=0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_REPLACE(r8, 0xc1105518, &(0x7f000000afc0)={{0x1, 0x3, 0x100, 0x800, 'syz1\x00', 0x7}, 0x2, 0x8, 0x4, r10, 0x4, 0x7fffffff, 'syz0\x00', &(0x7f000000af80)=['\x00', 'vcan0\x00', 'vcan0\x00', '\x00'], 0xe, [], [0x1f, 0xfffb, 0xff, 0x6]}) r11 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r11, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r11, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) r12 = socket(0x10, 0x3, 0x0) write(r12, &(0x7f0000000140)="2400000052001f0014f9f407112c04091c0007ed10001e550a000000090000000000", 0x22) r13 = socket$inet(0x2, 0x4000000805, 0x0) r14 = socket$inet_sctp(0x2, 0x5, 0x84) dup3(r13, r14, 0x0) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r14, 0x84, 0x64, &(0x7f0000d6cff0)=[@in={0x2, 0x4e20, @loopback}], 0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r14, 0x84, 0x1d, &(0x7f000025e000)={0x2, [0x0, 0x0]}, &(0x7f0000a8a000)=0xc) getsockopt$inet_sctp_SCTP_LOCAL_AUTH_CHUNKS(r12, 0x84, 0x1b, &(0x7f0000000140)=ANY=[@ANYRES32=r15, @ANYBLOB="168000005138c0f2"], &(0x7f0000000200)=0x2) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(r11, 0x84, 0x10, &(0x7f000000b100)=@assoc_value={r15, 0x4}, &(0x7f000000b140)=0x8) ioctl$sock_inet_SIOCGIFDSTADDR(r7, 0x8917, &(0x7f0000004580)={'hwsim0\x00', {0x2, 0x4e22, @loopback}}) [ 892.054362][T27142] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 892.063957][T27140] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 892.097974][ C0] protocol 88fb is buggy, dev hsr_slave_0 [ 892.103346][T27119] block nbd3: NBD_DISCONNECT [ 892.103822][ C0] protocol 88fb is buggy, dev hsr_slave_1 [ 892.121076][T27132] block nbd4: NBD_DISCONNECT [ 892.150857][T27140] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable [ 892.167220][T27142] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 135 (only 16 groups) [ 892.202808][T27251] block nbd4: NBD_DISCONNECT [ 892.205893][T27140] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable 13:46:18 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, 0x0) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:18 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\xbf\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:18 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:18 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 892.341317][T27261] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable 13:46:18 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0xfff, 0x8000) socket$inet6(0xa, 0x0, 0x0) timer_settime(0x0, 0x0, 0x0, 0x0) [ 892.569148][T27326] block nbd4: NBD_DISCONNECT [ 892.673805][T27323] block nbd3: NBD_DISCONNECT 13:46:18 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, 0x0) tkill(r6, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) [ 892.746996][T27387] block nbd4: NBD_DISCONNECT 13:46:18 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\xfd\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:18 executing program 0: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = openat$sequencer(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer\x00', 0x440800, 0x0) setsockopt$netrom_NETROM_T2(r0, 0x103, 0x2, &(0x7f0000000040)=0x400, 0x4) r1 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r1, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) r2 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r2, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) getsockopt$inet_mreqn(r2, 0x0, 0x0, &(0x7f0000002700)={@broadcast, @remote, 0x0}, &(0x7f0000002740)=0xc) setsockopt$packet_add_memb(r1, 0x107, 0x1, &(0x7f0000002780)={r3, 0x1, 0x6, @dev={[], 0x19}}, 0x10) 13:46:18 executing program 5: syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r0 = openat$watch_queue(0xffffffffffffff9c, &(0x7f0000000080)='/dev/watch_queue\x00', 0x80880, 0x0) watch_devices(r0, 0xd2, 0x0) socket$inet6(0xa, 0x3, 0x3f) timer_settime(0x0, 0x0, 0x0, 0x0) r1 = open(&(0x7f00009e1000)='./file0\x00', 0x8040, 0x0) ioctl$EXT4_IOC_GROUP_ADD(r1, 0x40286608, &(0x7f0000000040)={0x87}) ioctl$PPPIOCATTCHAN(r1, 0x40047438, &(0x7f0000000000)) 13:46:18 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\a\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:18 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 893.009876][T27419] Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable 13:46:18 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x03\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 893.167139][T27431] EXT4-fs warning (device sda1): verify_group_input:104: Cannot add at group 135 (only 16 groups) [ 893.202887][T27450] block nbd4: NBD_DISCONNECT [ 893.295554][T27451] block nbd3: NBD_DISCONNECT [ 893.305053][T27524] block nbd4: NBD_DISCONNECT 13:46:19 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\b\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) [ 893.525271][T27561] block nbd4: NBD_DISCONNECT 13:46:19 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x05\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) 13:46:19 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x1f}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getpid() open_by_handle_at(0xffffffffffffffff, &(0x7f0000000080)={0x8}, 0x0) socketpair(0x4, 0x2, 0x0, &(0x7f0000000000)) r0 = openat$kvm(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) syz_open_dev$sg(0x0, 0x0, 0x81) ioctl$KVM_DEASSIGN_DEV_IRQ(r1, 0x4040ae75, 0x0) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @ipv4={[], [], @local}}, 0x1c) connect$inet6(r4, &(0x7f0000000300)={0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x1c) r5 = syz_open_dev$vcsa(&(0x7f0000000380)='/dev/vcsa#\x00', 0x0, 0x400400) r6 = gettid() syz_genetlink_get_family_id$fou(&(0x7f0000000200)='fou\x00') getgid() writev(r0, &(0x7f0000000080), 0x0) timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)=0x0) ioprio_get$pid(0x2, r6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x1c9c380}, {0x0, 0x9}}, &(0x7f0000000000)) tkill(0x0, 0x1004000000016) fgetxattr(r0, &(0x7f0000000280)=ANY=[@ANYBLOB="a505000000000700004000000000000000"], 0x0, 0x0) close(r3) dup2(r5, r2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$KVM_SET_PIT2(r1, 0x4070aea0, &(0x7f00000007c0)={[{0x7, 0x3, 0x3, 0xe2fe, 0xffffffffffffff81, 0x4, 0x4, 0xffffffffffffb1b0, 0x10000, 0x0, 0x3, 0x2}, {0x716, 0x7, 0x8, 0x8, 0x0, 0x0, 0x2, 0x4, 0x1, 0x0, 0x2, 0x6b74, 0x8000}, {0x1, 0x0, 0x1406, 0xea7, 0x5, 0x20, 0x4, 0x1, 0x80000001, 0x81, 0x8245, 0x0, 0x2}]}) clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) timer_delete(r7) 13:46:19 executing program 3: socket$inet6(0xa, 0x0, 0x0) socket$inet6_sctp(0xa, 0x801, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x7fffffff, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0xa, 0x300) pipe(0x0) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) kcmp(r0, r2, 0x0, r3, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) openat$nvram(0xffffffffffffff9c, &(0x7f0000000100)='/dev/nvram\x00', 0x80, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x400000) dup(0xffffffffffffffff) [ 893.633077][T27570] block nbd4: NBD_DISCONNECT 13:46:19 executing program 4: socket$inet6_sctp(0xa, 0x0, 0x84) sched_rr_get_interval(0x0, 0x0) r0 = getpid() openat$nvme_fabrics(0xffffffffffffff9c, 0x0, 0x0, 0x0) r1 = accept4(0xffffffffffffffff, &(0x7f0000000200)=@llc={0x1a, 0x0, 0x0, 0x0, 0x0, 0x0, @random}, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffffff, 0x0, 0x0) r2 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x00\x00\x00\x00\x00\n\x00', 0x4a, 0x1006}) kcmp(r0, r2, 0x0, 0xffffffffffffffff, 0xffffffffffffffff) dup(0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, &(0x7f0000000000)={0x0, 0x7ff}, 0x8) r4 = syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) r5 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r5) ioctl$NBD_CLEAR_SOCK(r4, 0xab08) dup2(0xffffffffffffffff, r1) ftruncate(0xffffffffffffffff, 0x200004) syz_open_dev$ndb(0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) syz_open_dev$ndb(0x0, 0x0, 0x400000) dup(0xffffffffffffffff) 13:46:19 executing program 0: r0 = syz_open_dev$mouse(&(0x7f0000000000)='/dev/input/mouse#\x00', 0x10004c4, 0x1) ioctl$TIOCL_GETSHIFTSTATE(r0, 0x541c, &(0x7f0000000040)={0x6, 0x2}) syz_open_dev$sg(&(0x7f00000002c0)='/dev/sg#\x00', 0x0, 0x0) r1 = socket(0xa, 0x2, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r1, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r1, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) r2 = socket(0xa, 0x2, 0x0) r3 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r3, 0xc0a85320, &(0x7f0000000000)={{0x100000080, 0x4}, 'port0\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) mmap(&(0x7f0000ffe000/0x1000)=nil, 0x1000, 0x300000a, 0x80010, r3, 0x48d61000) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r2, 0x29, 0x20, &(0x7f00000002c0)={@ipv4, 0x0, 0x0, 0x0, 0x5}, 0x16d) sendmsg$TIPC_NL_LINK_RESET_STATS(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x325}}, 0x0) r4 = socket$pptp(0x18, 0x1, 0x2) getsockopt$sock_int(r4, 0x1, 0x2d, &(0x7f00000000c0), &(0x7f0000000100)=0x4) getsockopt$inet_pktinfo(r2, 0x0, 0x8, &(0x7f00000007c0)={0x0, @empty}, &(0x7f0000000800)=0xc) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000340)='./cgroup.cpu/syz1\x00', 0x200002, 0x0) connect$can_bcm(r1, &(0x7f0000000840)={0x1d, r5}, 0x10) r6 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r7 = dup(r6) ioctl$PERF_EVENT_IOC_ENABLE(r7, 0x8912, 0x400200) read$snddsp(r7, &(0x7f0000000180)=""/223, 0xdf) [ 893.866802][T27418] ------------[ cut here ]------------ [ 893.873675][T27418] refcount_t: underflow; use-after-free. [ 893.922605][T27418] WARNING: CPU: 0 PID: 27418 at lib/refcount.c:28 refcount_warn_saturate+0x1dc/0x1f0 [ 893.932372][T27418] Kernel panic - not syncing: panic_on_warn set ... [ 893.938968][T27418] CPU: 0 PID: 27418 Comm: syz-executor.5 Not tainted 5.5.0-rc2-next-20191220-syzkaller #0 [ 893.948852][T27418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 893.958917][T27418] Call Trace: [ 893.962217][T27418] dump_stack+0x197/0x210 [ 893.966559][T27418] ? refcount_warn_saturate+0x190/0x1f0 [ 893.972189][T27418] panic+0x2e3/0x75c [ 893.976089][T27418] ? add_taint.cold+0x16/0x16 [ 893.980871][T27418] ? __kasan_check_write+0x14/0x20 [ 893.985985][T27418] ? __warn.cold+0x14/0x3e [ 893.990406][T27418] ? __warn+0xd9/0x1cf [ 893.994486][T27418] ? refcount_warn_saturate+0x1dc/0x1f0 [ 894.000036][T27418] __warn.cold+0x2f/0x3e [ 894.004289][T27418] ? refcount_warn_saturate+0x1dc/0x1f0 [ 894.009837][T27418] report_bug+0x289/0x300 [ 894.014239][T27418] do_error_trap+0x11b/0x200 [ 894.018842][T27418] do_invalid_op+0x37/0x50 [ 894.023267][T27418] ? refcount_warn_saturate+0x1dc/0x1f0 [ 894.028810][T27418] invalid_op+0x23/0x30 [ 894.032967][T27418] RIP: 0010:refcount_warn_saturate+0x1dc/0x1f0 [ 894.039120][T27418] Code: e9 d8 fe ff ff 48 89 df e8 81 7f 22 fe e9 85 fe ff ff e8 57 94 e4 fd 48 c7 c7 40 db 6f 88 c6 05 b6 1e ec 06 01 e8 73 1a b5 fd <0f> 0b e9 ac fe ff ff 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 [ 894.058987][T27418] RSP: 0018:ffffc900185c7d40 EFLAGS: 00010282 [ 894.065055][T27418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 894.073025][T27418] RDX: 0000000000000000 RSI: ffffffff815e9f66 RDI: fffff520030b8f9a [ 894.080994][T27418] RBP: ffffc900185c7d50 R08: ffff88809c20a540 R09: ffffed1015d06659 [ 894.088962][T27418] R10: ffffed1015d06658 R11: ffff8880ae8332c7 R12: 0000000000000003 [ 894.096930][T27418] R13: ffff88809fc3cd58 R14: ffff88809fc3cd00 R15: ffffffff8a025680 [ 894.104931][T27418] ? vprintk_func+0x86/0x189 [ 894.109586][T27418] put_watch+0xa2/0xb0 [ 894.113667][T27418] watch_queue_release+0x34b/0xc40 [ 894.118813][T27418] __fput+0x2ff/0x890 [ 894.122817][T27418] ? __post_watch_notification+0x840/0x840 [ 894.128655][T27418] ____fput+0x16/0x20 [ 894.132705][T27418] task_work_run+0x145/0x1c0 [ 894.137332][T27418] exit_to_usermode_loop+0x316/0x380 [ 894.142634][T27418] do_syscall_64+0x676/0x790 [ 894.147241][T27418] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 894.153142][T27418] RIP: 0033:0x4144b1 13:46:19 executing program 2: socket$inet6_sctp(0xa, 0x0, 0x84) ioctl$VIDIOC_ENUM_FMT(0xffffffffffffffff, 0xc0405602, &(0x7f00000000c0)={0x0, 0x0, 0x0, "8aabff53674d7d0145000000f5ff00000456f821bc7f368cb13e2a00"}) dup2(0xffffffffffffffff, 0xffffffffffffffff) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0xfa4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$kcm(0x11, 0x0, 0x300) pipe(0x0) r0 = gettid() syz_open_dev$sg(0x0, 0x0, 0x0) r1 = syz_open_dev$sndseq(&(0x7f0000000140)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, &(0x7f0000000000)={{0x100000080}, 'port1\x00\x00\x00\x06\x00', 0x4a, 0x1006}) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r1, 0xc0a85320, 0x0) kcmp(0x0, r0, 0x0, r1, 0xffffffffffffffff) setsockopt$sock_linger(0xffffffffffffffff, 0x1, 0xd, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x0) r2 = dup(0xffffffffffffffff) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, r2) dup2(0xffffffffffffffff, 0xffffffffffffffff) ftruncate(0xffffffffffffffff, 0x0) openat$nvram(0xffffffffffffff9c, 0x0, 0x0, 0x0) syz_open_dev$ndb(&(0x7f0000000040)='Jdev/nbd#\x00', 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, 0x0) ioctl$NBD_SET_SOCK(0xffffffffffffffff, 0xab00, 0xffffffffffffffff) syz_open_dev$ndb(0x0, 0x0, 0x400000) [ 894.157038][T27418] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 894.176647][T27418] RSP: 002b:00007ffd99b8cd00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 894.185070][T27418] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004144b1 [ 894.189912][ T4109] kobject: 'loop2' (000000009a2a5ce1): kobject_uevent_env [ 894.193048][T27418] RDX: fffffffffffffff7 RSI: 0000000000000d0b RDI: 0000000000000004 [ 894.204778][ T4109] kobject: 'loop2' (000000009a2a5ce1): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 894.208100][T27418] RBP: 0000000000000001 R08: 000000007750cd0b R09: 000000007750cd0f [ 894.208110][T27418] R10: 00007ffd99b8cde0 R11: 0000000000000293 R12: 000000000075c9a0 [ 894.208119][T27418] R13: 000000000075c9a0 R14: 0000000000760550 R15: 000000000075c07c [ 894.220099][T27418] Kernel Offset: disabled [ 894.248336][T27418] Rebooting in 86400 seconds..