x0, 0xffffe000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 509.973449][T28349] nbd: couldn't find device at index -1577385984 01:16:04 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xe, 0x0, 0x0, 0x0, 0x0) [ 510.048420][T28358] nbd: couldn't find device at index -1577385984 01:16:04 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x10f124, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:04 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xb00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:04 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) r2 = syz_open_dev$dri(&(0x7f0000000040), 0x8, 0xa8680) mmap(&(0x7f0000599000/0x1000)=nil, 0x1000, 0x1000000, 0x100010, r2, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:04 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x48000000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 510.192745][T28382] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:04 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xf, 0x0, 0x0, 0x0, 0x0) 01:16:04 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xfffff000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:04 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) getsockopt$inet_IP_IPSEC_POLICY(r0, 0x0, 0x10, &(0x7f0000000240)={{{@in=@remote, @in6=@local, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@mcast2}, 0x0, @in6=@mcast2}}, &(0x7f00000000c0)=0xe8) mount$overlay(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000080), 0x1044, &(0x7f0000000340)={[{@lowerdir={'lowerdir', 0x3d, './file0'}}, {@metacopy_on}, {@nfs_export_off}], [{@obj_user={'obj_user', 0x3d, '4\'#\xb0'}}, {@uid_gt={'uid>', r1}}, {@smackfshat={'smackfshat', 0x3d, '-.}'}}, {@fscontext={'fscontext', 0x3d, 'system_u'}}, {@obj_type={'obj_type', 0x3d, ':*'}}]}) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:05 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x10, 0x0, 0x0, 0x0, 0x0) 01:16:05 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x10f326, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 510.549456][T28394] nbd: couldn't find device at index -1577385984 [ 510.610391][T28403] nbd: couldn't find device at index -1577385984 01:16:05 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x4c000000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 510.670678][T28398] nbd: couldn't find device at index -1577385984 01:16:05 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffffff00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:05 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x11, 0x0, 0x0, 0x0, 0x0) 01:16:05 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xc00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:05 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x10f530, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:05 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = syz_mount_image$hfs(&(0x7f0000000040), &(0x7f0000000080)='./file0\x00', 0x5, 0x2, &(0x7f0000000140)=[{&(0x7f00000000c0)="3076b31e606d33c274422dc564395b9bb5993cdbd44749b7f306bd9f9fa65a0ee0692e57cacbd16b6a", 0x29, 0xffff}, {&(0x7f0000000100)="c8cf79d539beea02b4c6c3065e95e2f82eb0402183a80e6822f40027727e24184a52f711626c890aeb9412c8e3a1ecd28d20d1361e986bac8253f1f1d4", 0x3d, 0x6c8}], 0x20000, &(0x7f0000000240)={[{@creator={'creator', 0x3d, "58cc4e5b"}}, {@uid={'uid', 0x3d, 0xffffffffffffffff}}, {@umask={'umask', 0x3d, 0x6e57}}, {@umask={'umask', 0x3d, 0xfffffffffffffe01}}, {@part={'part', 0x3d, 0xa4}}, {@dir_umask={'dir_umask', 0x3d, 0xfffffffffffffff7}}, {@session={'session', 0x3d, 0xf7}}, {@type={'type', 0x3d, "57799873"}}]}) faccessat2(r1, &(0x7f0000000300)='./file0\x00', 0x4a, 0x100) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 510.978822][T28431] nbd: couldn't find device at index -1577385984 [ 511.078015][T28450] loop1: detected capacity change from 0 to 255 01:16:05 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffffff7f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:05 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x12, 0x0, 0x0, 0x0, 0x0) [ 511.149730][T28441] nbd: couldn't find device at index -1577385984 [ 511.169975][T28437] nbd: couldn't find device at index -1577385984 01:16:05 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x110000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:05 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x50000000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 511.237758][T28441] nbd: couldn't find device at index -1577385984 01:16:05 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xd00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:05 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mkdirat(r1, &(0x7f0000000040)='./file0\x00', 0x8) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 511.390900][T28470] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:06 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x13, 0x0, 0x0, 0x0, 0x0) 01:16:06 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffffff9e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 511.618200][T28474] nbd: couldn't find device at index -1577385984 [ 511.654026][T28485] nbd: couldn't find device at index -1577385984 01:16:06 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) ioctl$sock_bt_bnep_BNEPGETCONNLIST(r0, 0x800442d2, &(0x7f0000000080)={0x2, &(0x7f0000000040)=[{}, {0x0, 0x0, 0x0, @link_local}]}) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:06 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x111000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 511.716076][T28483] nbd: couldn't find device at index -1577385984 01:16:06 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x14, 0x0, 0x0, 0x0, 0x0) 01:16:06 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xe00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:06 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x68000000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 511.861695][T28502] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:06 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x112000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:06 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x15, 0x0, 0x0, 0x0, 0x0) 01:16:06 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xfffffff0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:06 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x6c000000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 512.138260][T28512] nbd: couldn't find device at index -1577385984 [ 512.173576][T28517] nbd: couldn't find device at index -1577385984 01:16:06 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 512.223843][T28526] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:06 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xf00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:06 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x16, 0x0, 0x0, 0x0, 0x0) 01:16:07 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffffffff, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:07 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x113000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 512.593382][T28537] nbd: couldn't find device at index -1577385984 01:16:07 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x17, 0x0, 0x0, 0x0, 0x0) [ 512.643420][T28542] nbd: couldn't find device at index -1577385984 [ 512.667833][T28551] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:07 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x74000000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:07 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0) perf_event_open(&(0x7f0000000040)={0x2, 0x80, 0x4, 0x1, 0x2, 0x8, 0x0, 0x34b, 0x8000, 0x7, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x8, 0x0, @perf_config_ext={0x5}, 0xa2002, 0x8, 0x386, 0x1, 0xb2a6, 0x1, 0x7, 0x0, 0x9b, 0x0, 0x7}, 0x0, 0xffffffffffffffff, r1, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:07 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x114000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 512.734653][T28539] nbd: couldn't find device at index -1577385984 01:16:07 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="0f000000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:07 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xf58, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:07 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x18, 0x0, 0x0, 0x0, 0x0) 01:16:07 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x115000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 513.057965][T28569] nbd: couldn't find device at index -1577385984 01:16:07 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) r2 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r2, 0x80247008, &(0x7f0000000080)) preadv(r2, &(0x7f0000000100)=[{&(0x7f0000000040)=""/105, 0x69}, {&(0x7f00000000c0)=""/21, 0x15}], 0x2, 0x1000, 0x800) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) r3 = openat$cgroup(r1, &(0x7f0000000140)='syz0\x00', 0x200002, 0x0) ioctl$BTRFS_IOC_SYNC(r3, 0x9408, 0x0) 01:16:07 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x19, 0x0, 0x0, 0x0, 0x0) [ 513.233986][T28583] nbd: couldn't find device at index -1577385984 [ 513.264673][T28576] nbd: couldn't find device at index -1577385984 01:16:07 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 513.296191][T28592] nbd: couldn't find device at index -1577385984 01:16:07 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x7a000000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:08 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x116000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 513.495273][T28609] nbd: must specify at least one socket [ 513.568780][T28612] nbd: couldn't find device at index -1577385984 [ 513.624892][T28618] nbd: couldn't find device at index -1577385984 01:16:08 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x1a, 0x0, 0x0, 0x0, 0x0) 01:16:08 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB='g\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:08 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x90020000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:08 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x1100, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:08 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x117000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:08 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x1b, 0x0, 0x0, 0x0, 0x0) [ 513.833760][T28633] nbd: couldn't find device at index -1577385984 01:16:08 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="c0000000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 513.975772][T28632] nbd: couldn't find device at index -1577385984 [ 514.026536][T28637] nbd: couldn't find device at index -1577385984 [ 514.074370][T28644] nbd: couldn't find device at index -1577385984 01:16:08 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x1400, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:08 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x92000000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:08 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x1c, 0x0, 0x0, 0x0, 0x0) 01:16:08 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x118000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:08 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="c00e0000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 514.372446][T28668] nbd: couldn't find device at index -1577385984 01:16:08 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x1d, 0x0, 0x0, 0x0, 0x0) [ 514.452925][T28675] nbd: couldn't find device at index -1577385984 01:16:09 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) unlinkat(0xffffffffffffffff, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r0, 0x0) r1 = socket$kcm(0x29, 0x5, 0x0) sendmmsg(r0, &(0x7f0000000680)=[{{0x0, 0x0, &(0x7f0000000100)=[{&(0x7f0000000040)="5334b9167e9c4a5beef81326517b0cdca4024bf7665c07acf485bf5fe5950abfe8a1ce8cf0bf3a0b61cb41e732479a5f091d136c9a23f8d6a2b89acfc6", 0x3d}, {&(0x7f0000000080)="0db4d3e4c2705b5ff2795055271dc18d4ddc0d12297c8874822a25f7162ed6057c917fcdd385286ae1abc36e049a753352037d0d3e85", 0x36}, {&(0x7f00000007c0)="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", 0x1000}, {&(0x7f00000000c0)="c60e996a32ed7b9151c8", 0xa}, {&(0x7f0000000240)="db5a297283ebdfdd0f526f007eb9ae29655effd973404f80c711cc16a77ca88b99ef03805c5252df599bfad934763694d05a11d9b5125ac51994bd09907269168b447d038f1e5d98b4847728412e03ca5895c21c67e60461e0041728016fd6dded9fdfc4768dc2be502ed0a9ddc043219ab854de7c6fb7ce648bd616059fdb7b3c7c0e583e11ecdbf399c45002f8566c01f5a057c54bbac0823cb7c62276e59f7dacdd94f7855954808a377d7c1abca4b84a14dfece5c21e3f035220ca55ae5d66a322d42bd8", 0xc6}, {&(0x7f0000000340)="d92e4a27788d01302cc783e94d3f60b6e6feda2ae5d302e10ffad1e982264f32d394ebaa1aa5d384145bbeb37856d0a4efbba1ae2a7f1c5a0f637718ed6fc9625c365bd5f52a2b962f615e4422e4f83353ca181a025e3783dd7abba65648a72dc208da70a492db29c16fd410b507c7a37124bfb98c0a450d2ae4d5370df17ff0e4436c2bc9e039ce7de8e7f6f44e4e3e35441e00eeedf23d32137ecf13e9ef6589ff232c137ad0f52d8391afaeba24", 0xaf}, {&(0x7f0000000400)="f28c5a24e00195f4441401df4a55b0b17ae0d7dbd3d48b23041183befaf30d57c4393f0892cc7cb03a46c64a1073dbf824934af606dca3dc5bb29b81700577ddea1b013b4a7e0fcd2b7374053d003a4d3bef4224af2c1258fdd7796a91c81684b90489595b96f60ddc35418f06be7c61bebab8c7964e5e272487da84a5a64cb4d15b38baa69a4011380fd812783221cb6b9763bec8acc1f807f809", 0x9b}], 0x7, &(0x7f00000004c0)=[{0x20, 0x113, 0x9251, "48bc28ef2a4acf7711"}], 0x20}}, {{&(0x7f0000000500)=@pppol2tpv3in6={0x18, 0x1, {0x0, r1, 0x1, 0x1, 0x2, 0x2, {0xa, 0x4e24, 0xf5b, @private0={0xfc, 0x0, '\x00', 0x1}, 0x1}}}, 0x80, &(0x7f00000005c0)=[{&(0x7f0000000580)="bff8addfe4018d13c0c677d068c3eef43a136eaa", 0x14}], 0x1, &(0x7f0000000600)=[{0x68, 0x3ca157dea40e9ff2, 0x401, "8eb3226e1b727f6b3698f33d0961278f9817204a272a148b03f9936a27e4a6bc6752e87459d19ed521bbab5e22d602d3ed499b2a436ac8d75153dacbbe602c3b6a970ec4555d2b8d6686b25bf55a51364e"}], 0x68}}], 0x2, 0x4040000) preadv(r0, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:09 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x1e, 0x0, 0x0, 0x0, 0x0) 01:16:09 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="e03f0300", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 514.674599][T28671] nbd: couldn't find device at index -1577385984 [ 514.708143][T28686] nbd: couldn't find device at index -1577385984 01:16:09 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x9effffff, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:09 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x119000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:09 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x1402, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:09 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="ec020020", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:09 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x21, 0x0, 0x0, 0x0, 0x0) 01:16:09 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x22, 0x0, 0x0, 0x0, 0x0) 01:16:09 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x80000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat$dlm_monitor(0xffffffffffffff9c, &(0x7f00000000c0), 0x2080, 0x0) r2 = getuid() getsockopt$sock_cred(0xffffffffffffffff, 0x1, 0x11, &(0x7f0000000680)={0x0, 0x0, 0x0}, &(0x7f00000006c0)=0xc) mount$fuse(0x0, &(0x7f0000000600)='./file0\x00', &(0x7f0000000640), 0x4000, &(0x7f00000002c0)=ANY=[@ANYBLOB="c34119a80346643d", @ANYRESDEC=0xee00, @ANYBLOB=',group_id', @ANYRESDEC=r3]) mount$fuse(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000080), 0x188c014, &(0x7f0000000240)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r1, @ANYBLOB=',rootmode=00000000000000000120000,user_id=', @ANYRESDEC=r2, @ANYBLOB=',group_id=', @ANYRESDEC=r3, @ANYBLOB=',max_read=0x0000000000000125,uid>', @ANYRESDEC=0xee00, @ANYBLOB=',fowner>', @ANYRESDEC=0xee00, @ANYBLOB=',dont_measure,fowner>', @ANYRESDEC, @ANYBLOB='\x00\x00']) r4 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r4, 0x0) preadv(r4, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 515.152092][T28709] nbd: couldn't find device at index -1577385984 01:16:09 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x11a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 515.228312][T28719] nbd: couldn't find device at index -1577385984 01:16:09 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="00f0ff7f", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 515.272087][T28717] nbd: couldn't find device at index -1577385984 01:16:09 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x23, 0x0, 0x0, 0x0, 0x0) 01:16:09 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xd46de801, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:09 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x1800, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:10 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x11b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:10 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0xd9f, 0x0) mkdirat(r2, &(0x7f0000000040)='./file0\x00', 0x148) 01:16:10 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="effdffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:10 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x24, 0x0, 0x0, 0x0, 0x0) [ 515.706723][T28747] nbd: couldn't find device at index -1577385984 01:16:10 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0) ioctl$SNDCTL_MIDI_INFO(r1, 0xc074510c, &(0x7f0000000040)={"a79d59bfb2ea2205ceb5294e75de96f9b9dc3eae792d49adc91b5f33eb45", 0x8, 0x7, 0x9fc, [0x5d7, 0x66921ac6, 0x2, 0x7fffffff, 0x9, 0x8, 0x7b5, 0x7, 0x1, 0xf10c, 0x0, 0x3, 0xc9e, 0x5, 0xfffffffe, 0x5, 0x1a7, 0x14]}) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:10 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x25, 0x0, 0x0, 0x0, 0x0) 01:16:10 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x11c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 515.828494][T28751] nbd: couldn't find device at index -1577385984 01:16:10 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x1f00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 515.889581][T28768] nbd: couldn't find device at index -1577385984 01:16:10 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c020000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:10 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xf0ffffff, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:10 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x26, 0x0, 0x0, 0x0, 0x0) 01:16:10 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x11d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:10 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0), 0x2000, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x80, 0x2, 0x2, 0x8, 0x3f, 0x0, 0x1, 0x56, 0x3, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x400, 0x1, @perf_config_ext={0xcba}, 0x8000, 0x800, 0x800, 0x9, 0x500000, 0x1fffe, 0x2, 0x0, 0x1, 0x0, 0xffff}, 0x0, 0x5, r1, 0x8) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0xd9f, 0x0) ioctl$sock_SIOCGIFINDEX_80211(r2, 0x8933, &(0x7f0000000100)={'wlan0\x00'}) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x13, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 516.306043][T28787] nbd: couldn't find device at index -1577385984 01:16:10 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x27, 0x0, 0x0, 0x0, 0x0) [ 516.368587][T28794] nbd: couldn't find device at index -1577385984 01:16:10 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c030000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 516.440764][T28801] nbd: couldn't find device at index -1577385984 01:16:11 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x2000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:11 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x11e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:11 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xfc030000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:11 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x28, 0x0, 0x0, 0x0, 0x0) 01:16:11 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c040000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:11 executing program 1: r0 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r0, 0x80247008, &(0x7f0000000080)) ioctl$F2FS_IOC_START_VOLATILE_WRITE(r0, 0xf503, 0x0) r1 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) dup2(r0, r0) r2 = openat$binder_debug(0xffffffffffffff9c, &(0x7f00000003c0)='/sys/kernel/debug/binder/transaction_log\x00', 0x0, 0x0) ioctl$RTC_ALM_READ(r2, 0x80247008, &(0x7f0000000380)) ioctl$RTC_WKALM_SET(r1, 0x4028700f, &(0x7f0000000200)={0x1, 0x1, {0x1f, 0x34, 0xc, 0x1b, 0x7, 0x0, 0x1, 0x167, 0xffffffffffffffff}}) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) open(0x0, 0x200100, 0x0) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x18, 0x0, 0x0) r4 = socket$unix(0x1, 0x5, 0x0) getsockopt$sock_cred(r4, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0}, &(0x7f0000cab000)=0xc) setreuid(0x0, r5) syz_mount_image$msdos(&(0x7f00000000c0), &(0x7f0000000100)='./file0\x00', 0x1, 0x1, &(0x7f0000000140)=[{&(0x7f0000000240)="7f59a217915bce7987df50b34b541beaac0d02da5704d4cf16c739603ea419fd2a9762e1a325992e69c87c40484b00c70f234c160c926a1a98681849b3ec71c94e5063b675fe148d506730f598fbeb710790b6d592cade59e2ef37ec2aab4a846c1104b88502337fed8caf28e2693968aa33a33eb97f95156c7731c21e35435d9aeb9617c2df0c61fefd500b809b0348f63136b8341d4a0140fd328f9767e453e25793fe5ab20328ddf801007d97bb64e9a71e92", 0xb4, 0x9}], 0x0, &(0x7f0000000300)={[{@nodots}], [{@obj_role={'obj_role', 0x3d, '/dev/rtc0\x00'}}, {@hash}, {@fowner_eq={'fowner', 0x3d, r5}}, {@func={'func', 0x3d, 'MODULE_CHECK'}}]}) [ 516.965779][T28826] nbd: couldn't find device at index -1577385984 01:16:11 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xfe030000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:11 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x29, 0x0, 0x0, 0x0, 0x0) [ 517.048310][T28842] FAT-fs (loop1): Unrecognized mount option "obj_role=/dev/rtc0" or missing value [ 517.050725][T28838] nbd: couldn't find device at index -1577385984 [ 517.105302][T28829] nbd: couldn't find device at index -1577385984 01:16:11 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c050000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:11 executing program 1: perf_event_open(&(0x7f0000000300)={0x1, 0x80, 0x3, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xfffffffffffffffb, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) setsockopt$inet6_tcp_TLS_RX(0xffffffffffffffff, 0x6, 0x2, &(0x7f0000000040)=@ccm_128={{0x304}, "6e1ff129b9cd3660", "35e49311544bbee1fc2269b0933b6c4c", "ad2376a9", "160b39658a2e1798"}, 0x28) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) r2 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r2, &(0x7f0000000000)={0x1f, 0x0, @fixed}, 0xe) shutdown(r2, 0xc82a0449170c81e1) r3 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000100), 0x10000, 0x0) setsockopt$inet_sctp_SCTP_PEER_ADDR_PARAMS(r3, 0x84, 0x9, &(0x7f0000000240)={0x0, @in6={{0xa, 0x4e20, 0x200, @mcast2, 0x8}}, 0xfffffffc, 0xeae9, 0x6e9, 0x7, 0x100, 0x58b5}, 0x9c) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f0000000080), &(0x7f00000000c0)=0xc) 01:16:11 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x11f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:11 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x2400, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 517.289390][T28857] nbd: couldn't find device at index -1577385984 01:16:11 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x2a, 0x0, 0x0, 0x0, 0x0) 01:16:11 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c060000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 517.367358][T28867] nbd: couldn't find device at index -1577385984 01:16:11 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x120000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:12 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xfeffffff, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 517.587893][T28876] nbd: couldn't find device at index -1577385984 [ 517.630532][T28886] nbd: couldn't find device at index -1577385984 01:16:12 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\a\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:12 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x2b, 0x0, 0x0, 0x0, 0x0) 01:16:12 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x2403, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 517.692218][T28892] nbd: couldn't find device at index -1577385984 01:16:12 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x121000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:12 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffff1f00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 517.799070][T28899] nbd: couldn't find device at index -1577385984 [ 518.093641][T28909] nbd: couldn't find device at index -1577385984 [ 518.139837][T28920] nbd: couldn't find device at index -1577385984 [ 518.180545][T28916] nbd: couldn't find device at index -1577385984 01:16:12 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x5, 0x1, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0xfffffffffffffffb}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:12 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x2c, 0x0, 0x0, 0x0, 0x0) 01:16:12 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\t\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:12 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xfffff000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:12 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x122000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:12 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x2600, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:12 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x2d, 0x0, 0x0, 0x0, 0x0) [ 518.493170][T28935] nbd: couldn't find device at index -1577385984 01:16:13 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x321081, 0x10) unlinkat(0xffffffffffffff9c, &(0x7f0000000200)='./file0\x00', 0x200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) openat(0xffffffffffffffff, &(0x7f0000000080)='./file0\x00', 0x301000, 0x2) socket$xdp(0x2c, 0x3, 0x0) mmap(&(0x7f0000483000/0x2000)=nil, 0x2000, 0x0, 0x10010, r1, 0x1cd1b000) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x18, 0xd9f, 0x0) openat(r3, &(0x7f0000000040)='./file0\x00', 0x105000, 0x8) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) ioctl$FITHAW(r0, 0xc0045878) 01:16:13 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x2e, 0x0, 0x0, 0x0, 0x0) [ 518.697902][T28943] nbd: couldn't find device at index -1577385984 [ 518.719010][T28947] nbd: couldn't find device at index -1577385984 01:16:13 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\n\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 518.777330][T28943] nbd: couldn't find device at index -1577385984 01:16:13 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x2f, 0x0, 0x0, 0x0, 0x0) 01:16:13 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x123000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:13 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffffff00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:13 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0xdc, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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}}, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) sendfile(r1, r0, &(0x7f0000000040)=0xf0f, 0x0) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:13 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x2cba, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:13 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c0f0000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:13 executing program 1: r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) socket$inet6_udp(0xa, 0x2, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) unlink(&(0x7f0000000040)='./file0\x00') preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 519.058921][T28985] nbd: couldn't find device at index -1577385984 01:16:13 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x30, 0x0, 0x0, 0x0, 0x0) [ 519.170448][T28992] nbd: couldn't find device at index -1577385984 01:16:13 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x124000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:13 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffffff7f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:13 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x31, 0x0, 0x0, 0x0, 0x0) [ 519.354191][T28993] nbd: couldn't find device at index -1577385984 01:16:14 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x80000000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = syz_mount_image$iso9660(&(0x7f00000002c0), &(0x7f0000000300)='./file0\x00', 0x1, 0x8, &(0x7f0000001900)=[{&(0x7f0000000340)="74a51ced3dccc77a8e208c7459904a65391e18d72503f457fe790d316f5c7e7776ed3554a1d512db2e060dfb110a305ad4bbf425b9d71baafeb6530a463828ea1b7e9297a0e9434b157e4d56bcd1ab623528664573c469b2a982f5fe41330aa268e1fd2a125847bc1ecd9eaa826b6096f3f07fbee14863596c49ff93c61a25ae8cb0841c49aaccd9af7d8971442aad37a1bd6cbd5930f3", 0x97, 0x88}, {&(0x7f0000000400)="9573bbaa4946eceeef6ff93043a7912cdf5cbac78d24cb10aa5a83d33fb19cef151b88f4c36d99b1c39a6c44d024ef6920f0f41ae296555aa4f022270576904a40f98e459c42e883c8659b2fc595b29b16b0ce53e00fd09877405e2746880ede4f1639fe24488a8dbfd2b672e082be261cfb5b9bac0e292d67fdad5dae59b54f0015f40c3b63c62f2f7b9d5aceccf0ad5fea093f291ca7a48361b273", 0x9c, 0x2}, {&(0x7f00000004c0)="e9b2d15c2148c4012d62cbf927f4f68d6f777d8177d2afd565ba17546a7c8b18f7da06e314699501679050b2d0f190a8d083c377f60d4b0f4ed96f9847a01d44e201142c33bccb77186b532f6ee3ba0ccba4c9f9612b7d424b7ecdb9e05b8c5ac0505b4529f315a2bea1d14681b75fdff6c4b30b0a8f82db35858dab433e7533171495873e80a32e9fa75654eb5bb5aa313fe5b58f8a6963c9268bcddeefea4206b0c4a97d78fbe73e270f226776b6de1d731220a431dfe857dadaa313df9c3c6097bd7b1f27d53e9c2ee2f2ea6b02433f48db5b9968efc28fcd541cf03a27", 0xdf, 0x8}, {&(0x7f00000005c0)="c02af172970c1682bb536a2c3902f539eb577f4dffc16dac6c14fdad72fb9e7a01a001daf73a5994898f9ff9a3ba3c02f76cd3b198636dcd11e3cb3c3ff710985f232ff6057c8d8994633efbce5ee28d77c670c30fc728be27e449a5969ea6fc1b4621580aca6d039442feb91dbe2ae910d6bd51933d4bed7652acb5e8150fdf78d4fe1c2930ee08c2d2ce85ba0deeabe914e3f1ab73af63b589f24f0c7029d72d2d5da1e5249e33bd33156078eef4878036f5bacd04e09ce0d2f3dc0cbf640d13daa7f3d4c36e9c5ba79c36a40c1d3724815d7631abb7da316128635f000f132a102cfe6c06", 0xe6, 0x2}, {&(0x7f00000007c0)="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", 0x1000, 0x6}, {&(0x7f00000006c0)="436100cb1625357230ad6f938311d0adc597a18c73820f26885ffb63e1fdd0e4aeed362bfbbacc246a708cfd49c3e579930890737ac118637cac3ed706224ca82a221eb3cbc1f241b405d2c2cc0552e7720280f92d854943457e3c1083c247bc32e3529c211bc39fdd748633497ad917fd518029c6759d53f48139d88d0be646918761b5838538197850b28b718a47", 0x8f, 0x5}, {&(0x7f00000017c0)="cdb64123087ca960e5cf015f46dc4b789cb7edff49283fff2d1ddf927951cac37c37d9919f20717605d419bb208ff278af4e681ac7cdef415cb2fec957fcc30f355b03605e8195dea952b2b42c85e62f6d7c25abc4bac12ed26547b4291000b3be7e920cac578ec1fee4e2a69621162b85d49b9ce72124002acc5dde0522febdac43ae57120c89d6ac552884804f79750d95168781c134ef07e84ab3987e05dfee38a87416791e13d81094bff4deb5d525c36394775d5a4cce5801c40543290a3f79faab4d32af7bdf2991d8e51dc73612c92a8b85cb2eabd962f566cc9c1b390d7b27c893efdf2df5c97a", 0xeb, 0x10001}, {&(0x7f00000018c0)="0e73954d99a634e5be6a8f681c0018409062e1655fec4e7ed2ee6dbf72ec4387350b789b594d", 0x26, 0x7}], 0x24, &(0x7f00000019c0)={[{@uid={'uid', 0x3d, 0xee01}}, {@sbsector={'sbsector', 0x3d, 0x2}}, {@check_relaxed}, {@sbsector={'sbsector', 0x3d, 0x4b47}}, {@utf8}, {@uid={'uid', 0x3d, 0xffffffffffffffff}}], [{@euid_gt={'euid>', 0xee01}}, {@context={'context', 0x3d, 'sysadm_u'}}, {@smackfsfloor={'smackfsfloor', 0x3d, ' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02'}}, {@fsuuid={'fsuuid', 0x3d, {[0x36, 0x33, 0x35, 0x31, 0x33, 0x37, 0x62], 0x2d, [0x61, 0x64, 0x30, 0x31], 0x2d, [0x0, 0x34, 0x63, 0x33], 0x2d, [0x33, 0x38, 0x35, 0x62], 0x2d, [0x0, 0x63, 0x0, 0x64, 0x63, 0x53, 0x38, 0x39]}}}]}) unlinkat(r2, &(0x7f0000001ac0)='./file0\x00', 0x0) pivot_root(&(0x7f0000000240)='./file0\x00', &(0x7f0000000280)='./file0\x00') r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) setsockopt$inet6_group_source_req(r1, 0x29, 0x2e, &(0x7f0000000040)={0x9, {{0xa, 0x4e21, 0xb5, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', 0x8}}, {{0xa, 0x4e23, 0xd5cb, @local}}}, 0x108) syz_genetlink_get_family_id$mptcp(&(0x7f0000001b00), r0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 519.411017][T29003] nbd: couldn't find device at index -1577385984 [ 519.422098][ T4864] Bluetooth: hci3: command 0x0405 tx timeout 01:16:14 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',H\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 519.514691][T29020] nbd: couldn't find device at index -1577385984 01:16:14 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x3f00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 519.580146][T29026] nbd: couldn't find device at index -1577385984 01:16:14 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x125000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 519.633019][T29028] loop1: detected capacity change from 0 to 256 01:16:14 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffffff9e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:14 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x32, 0x0, 0x0, 0x0, 0x0) 01:16:14 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',L\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 519.834089][T29028] loop1: detected capacity change from 0 to 256 01:16:14 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x126000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 519.885533][T29044] nbd: couldn't find device at index -1577385984 [ 519.935233][T29046] nbd: couldn't find device at index -1577385984 01:16:14 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r1 = open(0x0, 0x200100, 0x0) r2 = fork() r3 = pidfd_getfd(r1, r0, 0x0) perf_event_open(&(0x7f0000000040)={0x5, 0x80, 0x8f, 0x4, 0x98, 0xc6, 0x0, 0x5990, 0x80991, 0x8, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x8000, 0x1, @perf_config_ext={0x4, 0x2}, 0x200, 0x4, 0x5, 0x3, 0x1, 0x6, 0x7, 0x0, 0x80000001, 0x0, 0x1000}, r2, 0xe, r3, 0xb) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r4 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r4, 0x0) preadv(r4, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 519.976641][T29061] nbd: couldn't find device at index -1577385984 [ 520.025912][T29064] nbd: couldn't find device at index -1577385984 01:16:14 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x33, 0x0, 0x0, 0x0, 0x0) 01:16:14 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x4800, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:14 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xfffffff0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:14 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',`\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:14 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x127000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:14 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x34, 0x0, 0x0, 0x0, 0x0) [ 520.409181][T29088] nbd: couldn't find device at index -1577385984 01:16:15 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) r2 = syz_mount_image$afs(&(0x7f00000000c0), &(0x7f0000000100)='./file0\x00', 0xf0, 0x3, &(0x7f00000003c0)=[{&(0x7f0000000240)="f97869d730852508744bd3c9ab145958fde13e75f6fa19e9ff2111dc210eba24603200ec1f100f2c8c159122a953335813c5f42f717983c6033374e8fe5d9377a05cd324a9637f76c0ec181a9e4a7b1054de87cc806458c10d8028b1f45142dfefc619cbcd4033c7beeffd5a144a1bb3184595be9b05be265d019d51eca7e029e04d67db47d8a7420c44474fc51e010ff9fa7a8614ecdff97e44e9c915b48071947a1d673b4c98176595791448458d4579368f034956e770ce708d2f7eb2138f6d343c53a5d835e15a279829ce1e4039098a43feb64e0bcd04bdde5c1daa01d731a3f9bd1ae2096a73b3d0b60b", 0xed, 0x5}, {&(0x7f0000000140)="d49a910abd3516f8957894960e965bddc3a056cf065aece26cde350c9ac4f0c3ca21ef1a", 0x24, 0x7}, {&(0x7f0000000340)="0d367865b61fa8c214c33da35b8583cb500751166192eefa3a810446543c58afe4acce6a58251b6f48547ad4018b78682c320f6c704d08cd47eb361ad761d372b9197e554dfa1a56797bcd2e486ff5b73724f776a02d72fc45702a9e0495e118c067e2b199b1093ccd14471f869578557c25c0863d36589f", 0x78, 0x9}], 0x201420, &(0x7f0000000440)={[{@flock_local}, {@flock_openafs}, {@flock_strict}, {}], [{@permit_directio}, {@audit}, {@fsuuid={'fsuuid', 0x3d, {[0x63, 0x6b, 0x64, 0x34, 0x30, 0x61, 0x0, 0x38], 0x2d, [0x64, 0x39, 0x39, 0x66], 0x2d, [0x36, 0x0, 0x68, 0x39], 0x2d, [0x31, 0x63, 0x66, 0x63], 0x2d, [0x62, 0x39, 0x61, 0x66, 0x30, 0x61, 0x61, 0x35]}}}, {@subj_role={'subj_role', 0x3d, '#! '}}, {@dont_hash}, {@smackfsroot={'smackfsroot', 0x3d, 'm}$'}}, {@rootcontext={'rootcontext', 0x3d, 'staff_u'}}]}) ioctl$LOOP_SET_FD(r1, 0x4c00, r2) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r3, 0x0) write$binfmt_script(r0, &(0x7f0000000040)={'#! ', './file0', [{0x20, ']\\#\\\'%{+.#]'}], 0xa, "9bcb238fd00afc87fb2a45f0ccdb36d6f01a830680a39f1a5707bba35138a71b5c8b08a109cc2b7a5c9ea9d6e575c3b8d51cbaf48330a3e4e24862d26b66be3cc1b109bd2563422f626fb1f0234b11d101c65f6a8d20"}, 0x6d) preadv(r3, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 520.513962][T29087] nbd: couldn't find device at index -1577385984 [ 520.548077][T29095] nbd: couldn't find device at index -1577385984 01:16:15 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x35, 0x0, 0x0, 0x0, 0x0) 01:16:15 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',h\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:15 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xfffffffe, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 520.618705][T29094] nbd: couldn't find device at index -1577385984 01:16:15 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x4c00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:15 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x36, 0x0, 0x0, 0x0, 0x0) 01:16:15 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x128000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:15 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendto$inet(r1, &(0x7f0000000040)="920eed4a0d95f30ed89d03f4503c5d45657e49883875d12293e8e8674a3ec5c7dcf3258c5daae25a87da2b917f3be1b8b33b12d23bca87e21a63d07e77f0e860ad00a69c9aeeb44921a16332894c5ec0b8bf8f6bd5ca02135e2bb0a42006b3ed6ac1f75169605ba0ff2bfd58ff60f7111f5b9a9b3af6a9007547a6c45ae35b0f0cc1a378708f003266f9ce77cc7c63968ae8", 0xbc, 0x4000c41, &(0x7f0000000100)={0x2, 0x4e21, @multicast1}, 0x10) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:15 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x37, 0x0, 0x0, 0x0, 0x0) 01:16:15 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',l\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 521.030217][T29125] nbd: couldn't find device at index -1577385984 01:16:15 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x38, 0x0, 0x0, 0x0, 0x0) 01:16:15 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x129000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 521.095801][T29142] nbd: couldn't find device at index -1577385984 01:16:15 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0xffffffff, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 521.137178][T29133] nbd: couldn't find device at index -1577385984 01:16:15 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',t\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:15 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x5000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:15 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x39, 0x0, 0x0, 0x0, 0x0) 01:16:15 executing program 1: ioctl$SECCOMP_IOCTL_NOTIF_RECV(0xffffffffffffffff, 0xc0502100, &(0x7f0000000240)={0x0, 0x0}) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x4, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x1986, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x59}, r0, 0x7f, 0xffffffffffffffff, 0xa) perf_event_open(&(0x7f0000000040)={0x4, 0x80, 0x1f, 0x7, 0xc1, 0x3, 0x0, 0x8, 0x420, 0x5, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x3, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x3ff, 0x2, @perf_config_ext={0x2, 0x6}, 0xb8a0, 0x3, 0x8, 0x9, 0x6, 0x8, 0x7, 0x0, 0x7fffffff, 0x0, 0x60c}, 0x0, 0x3, 0xffffffffffffffff, 0x0) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) r3 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r3, 0x80247008, &(0x7f0000000080)) ioctl$BTRFS_IOC_TREE_SEARCH(r2, 0xd0009411, &(0x7f00000007c0)={{0x0, 0x1, 0x401, 0x5ff, 0x6, 0x0, 0x81, 0x9, 0x8, 0x4193, 0x2, 0x80000000, 0xd65, 0x0, 0xb}}) ioctl$BTRFS_IOC_INO_LOOKUP(r3, 0xd0009412, &(0x7f00000017c0)={r4, 0x5}) syz_open_dev$media(&(0x7f00000000c0), 0xffffffffffff556c, 0x20080) r5 = syz_open_dev$video4linux(&(0x7f0000000100), 0x7, 0x40401) mmap(&(0x7f000046b000/0x2000)=nil, 0x2000, 0x800006, 0x10, r5, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:15 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x12a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:15 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',z\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 521.390815][T29171] nbd: couldn't find device at index -1577385984 [ 521.580882][T29173] nbd: couldn't find device at index -1577385984 [ 521.606455][T29176] nbd: couldn't find device at index -1577385984 01:16:16 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) open(0x0, 0x200100, 0x0) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r0, 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) getsockopt$sock_cred(r0, 0x1, 0x11, &(0x7f0000000140)={0x0}, &(0x7f0000000280)=0xc) perf_event_open(&(0x7f0000000200)={0x3, 0x80, 0x8, 0x6, 0x3f, 0x8, 0x0, 0x100, 0x89010, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x3, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, @perf_bp={&(0x7f0000000100)}, 0x10, 0x100000000, 0xffff, 0x6, 0xeda, 0x0, 0x2, 0x0, 0x7, 0x0, 0x29f99d7a}, r2, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0) ioctl$sock_SIOCADDRT(r1, 0x890b, &(0x7f0000000080)={0x0, @in={0x2, 0x4e21, @initdev={0xac, 0x1e, 0x1, 0x0}}, @l2={0x1f, 0xffff, @any, 0x9}, @ax25={0x3, @bcast, 0x5}, 0x8, 0x0, 0x0, 0x0, 0xfffd, &(0x7f0000000040)='wlan0\x00', 0x0, 0x8cb0}) preadv(r0, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 521.646722][T29186] nbd: couldn't find device at index -1577385984 01:16:16 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="03000000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:16 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x12b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:16 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x3a, 0x0, 0x0, 0x0, 0x0) 01:16:16 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cf00000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:16 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x5003, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:16 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x3b, 0x0, 0x0, 0x0, 0x0) 01:16:16 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="0f000000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:16 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x12c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:16 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) getsockopt$inet_sctp6_SCTP_AUTO_ASCONF(r0, 0x84, 0x1e, &(0x7f0000000040), &(0x7f0000000080)=0x4) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) socket$inet6(0xa, 0x5, 0x1) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 522.116467][T29216] nbd: couldn't find device at index -1577385984 01:16:16 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000300", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 522.186788][T29223] nbd: couldn't find device at index -1577385984 01:16:16 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x3c, 0x0, 0x0, 0x0, 0x0) 01:16:16 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x580f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:16 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="14000000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:17 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x12d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:17 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffc, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) open(&(0x7f0000000080)='./file0\x00', 0x404080, 0x8b) ioctl$PERF_EVENT_IOC_ID(r0, 0x80082407, &(0x7f0000000040)) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:17 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000500", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:17 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x3d, 0x0, 0x0, 0x0, 0x0) [ 522.621285][T29251] nbd: couldn't find device at index -1577385984 [ 522.657741][T29261] nbd: must specify at least one socket [ 522.691953][T29257] nbd: couldn't find device at index -1577385984 01:16:17 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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}, 0x205}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @multicast1}, 0x2}}, 0x2e) r2 = socket$pppl2tp(0x18, 0x1, 0x1) connect$pppl2tp(r2, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, 0xffffffffffffffff, {0x2, 0x0, @multicast2}, 0x2, 0x3}}, 0x2e) setsockopt$pppl2tp_PPPOL2TP_SO_DEBUG(r2, 0x111, 0x3, 0x400000, 0x4) r3 = open(0x0, 0x200100, 0x0) unlinkat(r3, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r4 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r4, 0x0) preadv(r4, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:17 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="c00e0000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:17 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000600", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:17 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x6000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:17 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x12e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:17 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x3e, 0x0, 0x0, 0x0, 0x0) 01:16:17 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="e03f0300", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:17 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\a\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:17 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x41, 0x0, 0x0, 0x0, 0x0) 01:16:17 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) write(r0, &(0x7f0000000080)="50b2f09e92191aa19fbaabfca9286757a9a16e2df5a67d8328e7e634f19c2b37d496a7789e073db72e425444ce5b1594ac008ce4", 0x34) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) fallocate(r1, 0x48, 0x8f5, 0x5) pipe(&(0x7f0000000040)={0xffffffffffffffff}) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) r4 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r4, 0x80247008, &(0x7f0000000080)) sendfile(0xffffffffffffffff, r4, &(0x7f0000000300)=0x90d, 0x5) r5 = openat(r3, &(0x7f00000000c0)='./file0\x00', 0xa0a00, 0x11) getsockopt$inet6_mreq(r2, 0x29, 0x15, &(0x7f0000000100)={@ipv4={""/10, ""/2, @local}, 0x0}, &(0x7f0000000140)=0x14) ioctl$sock_ipv6_tunnel_SIOCDELPRL(r5, 0x89f6, &(0x7f00000002c0)={'ip6tnl0\x00', &(0x7f0000000240)={'syztnl1\x00', r6, 0x4, 0x9, 0x4, 0x3f, 0x5, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, @private2={0xfc, 0x2, '\x00', 0x1}, 0x8000, 0x1, 0x22ee18d, 0xe18e}}) 01:16:17 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x12f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 523.276644][T29292] nbd: couldn't find device at index -1577385984 [ 523.329515][T29295] nbd: couldn't find device at index -1577385984 01:16:17 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="ec020020", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:17 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\t\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:18 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x42, 0x0, 0x0, 0x0, 0x0) 01:16:18 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x6089, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:18 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x130000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:18 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c840900", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:18 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) r3 = openat(r0, &(0x7f0000000100)='./file0\x00', 0x400000, 0x5d) r4 = openat(r3, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x3a) r5 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000000c0), 0x400, 0x0) ioctl$BTRFS_IOC_GET_SUBVOL_INFO(r5, 0x81f8943c, &(0x7f0000000240)) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r4, 0x0) preadv(r4, &(0x7f0000000280), 0x0, 0xd9f, 0x0) ioctl$sock_SIOCSIFVLAN_SET_VLAN_FLAG_CMD(r1, 0x8983, &(0x7f0000000140)={0x7, 'vxcan1\x00', {0x7fff}, 0x7}) getsockopt$sock_int(r4, 0x1, 0x1d, &(0x7f0000000040), &(0x7f0000000080)=0x4) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:18 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="00f0ff7f", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:18 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x43, 0x0, 0x0, 0x0, 0x0) [ 523.828286][T29329] nbd: couldn't find device at index -1577385984 01:16:18 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\n\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 523.907398][T29336] nbd: couldn't find device at index -1577385984 01:16:18 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x131000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:18 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c020000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:18 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x44, 0x0, 0x0, 0x0, 0x0) 01:16:18 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x6800, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:18 executing program 1: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @fixed}, 0xe) shutdown(r0, 0xc82a0449170c81e1) ioctl$ifreq_SIOCGIFINDEX_wireguard(r0, 0x8933, &(0x7f0000000040)={'wg2\x00'}) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) setxattr$security_ima(&(0x7f0000000100)='./file0\x00', &(0x7f0000000140), &(0x7f0000000240)=@v2={0x3, 0x3, 0xc, 0x8, 0x3f, "1f5e80e73610fc517b85bfdcbd9838ca7e8f50a27e87511451a4997d95f7836d685ce74e965113f029d921a95041427a0008ce5c1215d79e0ba1125eaae701"}, 0x48, 0x0) r3 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r3, 0x80247008, &(0x7f0000000080)) ioctl$BTRFS_IOC_SUBVOL_SETFLAGS(r3, 0x4008941a, &(0x7f0000000080)) r4 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r4, 0x0) preadv(r4, &(0x7f0000000280), 0x18, 0xd9f, 0x0) ioctl$SNDRV_PCM_IOCTL_LINK(r4, 0x40044160, &(0x7f00000000c0)=0x9) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x2800003, 0x1010, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:18 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c030000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:18 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000f00", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:18 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x45, 0x0, 0x0, 0x0, 0x0) 01:16:18 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x132000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 524.430177][T29374] nbd: couldn't find device at index -1577385984 [ 524.493902][T29386] nbd: couldn't find device at index -1577385984 01:16:19 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c040000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:19 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c570f00", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:19 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x46, 0x0, 0x0, 0x0, 0x0) 01:16:19 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x6c00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:19 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x133000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:19 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c050000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:19 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x47, 0x0, 0x0, 0x0, 0x0) [ 524.914619][T29412] nbd: couldn't find device at index -1577385984 [ 524.981726][T29412] nbd: couldn't find device at index -1577385984 01:16:19 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) mmap(&(0x7f00000e5000/0x1000)=nil, 0x1000, 0x0, 0x11, 0xffffffffffffffff, 0xe89ba000) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:19 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c001f00", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:19 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x48, 0x0, 0x0, 0x0, 0x0) 01:16:19 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x134000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:19 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x7400, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:19 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c060000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:19 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x49, 0x0, 0x0, 0x0, 0x0) 01:16:19 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) perf_event_open(&(0x7f0000000040)={0x5, 0x80, 0x6, 0x0, 0xca, 0x80, 0x0, 0x4, 0x2000, 0x4, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x3, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x9, 0x1, @perf_config_ext={0x7, 0x4}, 0x2, 0x4c15, 0x1, 0x9, 0xc4, 0x2, 0x3ff, 0x0, 0x3}, 0xffffffffffffffff, 0x8, 0xffffffffffffffff, 0x9) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) socketpair(0x23, 0xe, 0xffffffff, &(0x7f00000000c0)={0xffffffffffffffff}) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000080)={'vcan0\x00', 0x0}) bind$packet(r2, &(0x7f0000000140)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @random="ecee8b1483f4"}, 0x14) ioctl$sock_inet6_SIOCADDRT(r1, 0x890b, &(0x7f0000000100)={@empty, @local, @private1, 0x0, 0x4, 0x89, 0x0, 0x0, 0x4, r3}) r4 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r4, 0x0) preadv(r4, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 525.379849][T29443] nbd: couldn't find device at index -1577385984 01:16:20 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x135000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:20 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00 \x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 525.429791][T29454] nbd: couldn't find device at index -1577385984 01:16:20 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\a\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:20 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x7a00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:20 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\b\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:20 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x203, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffe1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:20 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00?\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:20 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x136000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 525.871709][T29482] nbd: couldn't find device at index -1577385984 01:16:20 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\t\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:20 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) socketpair$tipc(0x1e, 0x2, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) mmap(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x300000a, 0x4010, r2, 0xf67e7000) openat$mice(0xffffffffffffff9c, &(0x7f0000000080), 0x80000) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 525.930634][T29494] nbd: couldn't find device at index -1577385984 01:16:20 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x4a, 0x0, 0x0, 0x0, 0x0) 01:16:20 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x137000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:20 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x8002, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:20 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00H\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:20 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',,\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:20 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',H\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:20 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00L\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:20 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x4b, 0x0, 0x0, 0x0, 0x0) [ 526.422143][T29516] nbd: couldn't find device at index -1577385984 01:16:21 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x4c, 0x0, 0x0, 0x0, 0x0) [ 526.495794][T29527] nbd: couldn't find device at index -1577385984 01:16:21 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c0f5700", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:21 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x138000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:21 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',L\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:21 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',P\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:21 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00`\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:21 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x4d, 0x0, 0x0, 0x0, 0x0) 01:16:21 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xa000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:21 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x139000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:21 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',h\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:21 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x4e, 0x0, 0x0, 0x0, 0x0) [ 527.086738][T29562] nbd: couldn't find device at index -1577385984 [ 527.145978][T29572] nbd: couldn't find device at index -1577385984 01:16:21 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00h\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:21 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x13a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:21 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000040)={0xaa, 0x40}) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:21 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',l\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:21 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xb000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:21 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x4f, 0x0, 0x0, 0x0, 0x0) 01:16:22 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00l\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:22 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x5, &(0x7f0000000340)=[{0x0, 0x0, 0x0, 0x3e0000}, {&(0x7f0000000040)="a17bbe7cce5f3059d9792a78e76029510c9b537b0b66939200a7769724346f7189ba66808ab31778197d9fde34fba6a726df33e724c4316422b65504081d40088fa5ccf8a406fbb07ff35a47c09e59a749915343b2113aa20a7b1338a2363595519f677ad0195df51fabfe0c249b33cf6d34688aa4c7db4834e5d128d0dc0a063807f89acc9457554d9767bb4b24fed0a062f6eece4a3b955ac44c9247b9b651d48b92b9ee21e42c57cc3fbacc7e021f5b4f79fd2fa748cb196beeae639a024c6a0dc1e9f1f74410c12efa2b4e972978cdadbfe8ba2e88dc12da66f90d", 0xdd, 0xd0c, 0x101}, {&(0x7f0000000240)="3144ca7e5efaa56967b9dae663e7bfb18a2d80b7f1034404420dde882d3af856845191956d0e71850b812b1e470eb0adc3373e46d7add780290f70741b38ecf36ea849ad3e19", 0x46, 0x9, 0x7fff}, {&(0x7f0000000140)="c26037d23955cf73d43a6b528b55ff362c60e449fe0532a91227e3d48970406d105dc74fe564a6155371c0bcea255d480b271dc13b968fe9dfeb8b423b", 0x3d, 0x87e7ddc, 0xfffffffffffffffa}, {&(0x7f00000002c0)="399022b3de8d29f498628925db1779d2cea4633458b738f9f035b5dca1070bde56a889c69c0e170cda5b9a2a81862efa57a5b11671d8bd87134cc22b5e22cdeeb8a235ba33ee5988764f09", 0x4b, 0x3, 0x4}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 527.679782][T29600] nbd: couldn't find device at index -1577385984 [ 527.738541][T29609] nbd: couldn't find device at index -1577385984 01:16:22 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',t\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:22 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) mkdirat(r0, &(0x7f0000000040)='./file0\x00', 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) ioctl$VIDIOC_G_PRIORITY(0xffffffffffffffff, 0x80045643, 0x2) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:22 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00t\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:22 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x50, 0x0, 0x0, 0x0, 0x0) 01:16:22 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x13b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:22 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xb003, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:22 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) ioctl$PERF_EVENT_IOC_SET_OUTPUT(r0, 0x2405, r0) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x400, 0x3e0001}], 0x80000) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) mknodat$null(r1, &(0x7f0000000040)='./file0\x00', 0xc000, 0x103) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:22 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x51, 0x0, 0x0, 0x0, 0x0) 01:16:22 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',z\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:22 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00z\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:22 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c920000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:22 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = gettid() ptrace$setopts(0x4206, r1, 0x0, 0x5) tkill(r1, 0x34) ptrace$cont(0x18, r1, 0x0, 0x0) ptrace$setregs(0xd, r1, 0x0, &(0x7f0000000080)) perf_event_open(&(0x7f0000000080)={0x1, 0x80, 0x1, 0x3, 0x0, 0x7, 0x0, 0x8, 0x110e4, 0xe, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x3, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x401, 0x0, @perf_bp={&(0x7f0000000040), 0x13}, 0x2, 0x8, 0xb, 0x4, 0x7, 0x1ff, 0x3, 0x0, 0x7fff, 0x0, 0x4}, r1, 0xc, 0xffffffffffffffff, 0x8) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:22 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x52, 0x0, 0x0, 0x0, 0x0) 01:16:22 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x13c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:22 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c098400", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 528.324710][T29647] nbd: couldn't find device at index -1577385984 [ 528.377620][T29654] nbd: couldn't find device at index -1577385984 01:16:23 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00f000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:23 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x53, 0x0, 0x0, 0x0, 0x0) 01:16:23 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cf00000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:23 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x13d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:23 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xba2c, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:23 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) dup(0xffffffffffffffff) r2 = openat(r1, &(0x7f0000000000)='/proc/self/exe\x00', 0xc040, 0x180) mmap(&(0x7f0000281000/0x3000)=nil, 0x3000, 0x0, 0x110, r0, 0x17384000) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:23 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x54, 0x0, 0x0, 0x0, 0x0) 01:16:23 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c3e0200", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:23 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000003", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:23 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x13e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 528.974686][T29686] nbd: couldn't find device at index -1577385984 01:16:23 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x3, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(r0, 0xc00c642d, &(0x7f00000000c0)={0x0, 0x0, 0xffffffffffffffff}) preadv(r1, &(0x7f0000000240)=[{&(0x7f00000005c0)=""/154, 0x9a}, {&(0x7f00000002c0)=""/227, 0xd4}, {&(0x7f0000000100)=""/114, 0x72}, {&(0x7f0000000400)=""/241, 0xf1}, {&(0x7f00000008c0)=""/251, 0xfb}], 0xfffff4b, 0x2, 0x9) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) r3 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r3, 0x80247008, &(0x7f0000000080)) preadv(r3, &(0x7f00000000c0), 0x0, 0x0, 0x0) [ 529.017915][T29696] nbd: couldn't find device at index -1577385984 01:16:23 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xc403, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:23 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x55, 0x0, 0x0, 0x0, 0x0) 01:16:23 executing program 1: ioctl$BTRFS_IOC_QGROUP_LIMIT(0xffffffffffffffff, 0x8030942b, &(0x7f0000000040)={0x8, {0x2, 0x401, 0x8000, 0x3ff, 0x6}}) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x0, 0x100, 0x0) 01:16:23 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c004003", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:23 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c900200", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:23 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x13f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:24 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x266a02, 0x0) open(&(0x7f0000000040)='./file0\x00', 0x2000, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:24 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x56, 0x0, 0x0, 0x0, 0x0) [ 529.506126][T29724] nbd: couldn't find device at index -1577385984 [ 529.624629][T29724] nbd: couldn't find device at index -1577385984 01:16:24 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000300", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:24 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) read$FUSE(0xffffffffffffffff, &(0x7f00000027c0)={0x2020, 0x0, 0x0, 0x0}, 0x2020) r2 = getuid() syz_mount_image$vfat(&(0x7f0000000040), &(0x7f0000000080)='./file0\x00', 0x5, 0x7, &(0x7f0000000440)=[{&(0x7f00000000c0)="b1cf8d88791aecf1", 0x8, 0x10001}, {&(0x7f00000007c0)="e2cbbcb44055fde64989dfb8e612dbbcebe65f87fddce044aa3946cee0c423cd9e02f13533ce3deba6248e664010cbea9bf8c80e557bc7a8b42400d60b350060093663da90c814ad658820091a636694aefee52bd37a4a6953a73ab54d70174fdf97bd49ab3516fe14e8261daaaae7e85f3fb35d37c677f3916c57ab15cabcb82f86ad87e99363359296edcade2ecdf8c3c6e3383f33d587f84c785af3700b77d6f4cd4cb6605a7e3d2e43fb77e7fb5af9c9d09a1b6d47e4a6bce0cce2dce823e44533262fbd5e4a22243b6592cb5a971427dd2bff233f52d016a04c96c10be23190ea8807d362de7d936dcd5f58838d70a3acd498d946482b0ddb154050550121f0147037c8e813bdda95d05a405fcf808c5a1534368ae980ffe8080fb0307351a76da2c97e71ca8d7684ee72fb85765ba0ab8d1d4e7122c136fb3ed47198775efa231964d208c2c306e26d9c09059c8375ffe6dc038296989e64171db5ba09959699a700fe0bbe7cbc6563d11be3bbbd43d6afdb4bd806e5377c16728709bbf93eb7e15887794087be771c7b0aff690f219110b8acea696a217120b0ffd9eecb8c58be33af91b913b9be65a72d5762f4af9fe5677a7899534c739c16a432aae1f8d1558b51fcac93f6274559ea03ee3e0a9391c72c50d2aae3324982be09bbb094c608617b4e398bf7da95ce2e111f9fdebe7025ea13689c5934c6bc54ed6c9ce574babd8293fc3719a5f7f8e66c546442dc633cca0f8995e3362287095b9cb0bbd4706e8d14b753090a387546d497ddbab4fc542ef113a009dd93748d2a70a6662c1f73be12197dd9452058dd226704e6743e0556fbf17a0eb9029636c0e8683f293f3bd9e9cb1f78564b2af972a5f0f41e9683e143b6f7c28b4527f4e982beae790a7d18377f2b749ebd273d71a5b4c24c0c5c20302d64879582517c6b089f72fb21d9cc5a50f18b2a8b84169488ecb0b82b397e18e5614d6f0cd6be7d36f9b2f94a1a7e788c827a691e47fd8c92e99456081b03458d19eaa23d1015a33375eb927c252b62e36998ae107750b7cc8193cc053b370246850452cd06d9a6e7136d2a75d07f695097df54abadb7aee6366d808f2704673ab917e587d4e00a519997680b209a1432aed048c9ede1a170c48ee7d493aedfe5cdf355a1f980290528c743bccfb70d6fa60dd73cecf71a9b13533ac4f8b9073e2659ef8671aede44581856ac06ee69b9cc0fde1443f6064174c2555e76c6c36acb078066fb5a6cc34d5d97e714f4acd02c7cb1fd41ac6a4423693b9758ef3bf9b526b2722ebfb4d09fd7dcb1de65e2f33447f4318c5719ee7d9f58d8255c62f2ee56a247403f202a1e8657b82a443c94a2c6b04028ba7a3a7ad061d496f2855ec3fe90dba551b986d0a176af909543cc4c90071e470f7fb35406fc4a290f94cd05dbb95e10513e8259da5200b4ccf01600446af9fb5d3b9b97b25292ef4919bd9c0b7c6b4fe0618fdf07c20be124b1fb30e15d3e72d8cf485b2c293038716dbf16e019ca88f69d51048a964850e1e76bdda78923d00aa0c8e4e63868a6e21fa9c8dbd49390d964b780870ef7478cb53e57cc51e76cdd024386347c93761677fe9c0231661d9f93b6fc4933c4eb8a7d1773d63ff6add0f1497e015aeb1506084cda0a0f258a6c1c11ab4f88ae556b08b8d2fa470b4f5126b9b61415e207da575c02ee498b684c3f812da6df94b20f27816a45a1cc41b2e5101f3c1cdb9a6dfa34572d0cd834113d38e8f3dbdfedce71b1d261bbb81917f66d491dadd3cfc0c3a853e113599ab2171e255028d5168360865930663e75a5d92a3311058b7ecdb251646f5140b87994354d90fd6c1167d59b370529c469dc724b243510de0f26b1cbe6d21e6d54160b4433eda94e5b9b54d658c4f1911a3fc31fe5d190d27f53286d6f2f7590fd77f2b4350e5c09e81033b7891d86824a3ebf9b24011736fcafc66e553d5425c8762e9cdaef409c2e8b4826cfe5cc1f47bf0f5745e41ec772cb6f4b0bc8783877d6d51911c1be2aa32275af5ab146fb1da5072f65e51481675caa2f11c180b8b92e967fd20dc01cd07193236ce1028d816e8eb4448304555a7579f389ebac9d27ad76326eb62431cf463e27b0092a4d849f5660a1248a34ce28c727d784d4ea77cee7964525ce8b38b1b4f7ef4813a0b0b3a194be7d284d3279764edcfc78a77d95cff8b08bca30d0bb62541815b079fb32b30e05af65945f96c59999c8e1cf15236343ec9ae4a07352f2fd5bedf0657cd3c9604b3038d35ef06959b1112201e359c21cf937d2459f706929b2d92871ee3813896788a14b5201cdcfc20689d663acce9ea3e70cf85aaeaaf74fb27cc7fd98be8ac8041f780e9b4b5f07e8af5516e51013e2dc2c6ea95a364cf294ec4943179fb900492a640dc3cc3e8a2e44d6d5825d87b773dd5c0d1d9a02fb62a9ed96bc711db34ea03732486f30269d47202c15248bfe7747f0e0d88cecc9c8e2596d18f6f434c8a23938d8921831bf2fb5baa1b101b02ad3e0a0d7e09a211f8f243c9e879eaa5a08d665900db6e539d37bedef35ce3b9d12da5c59fae1937ec9b95a62a5ee34cd66649ecbefba8124ede58a386a9c02e18e5362d14798fb5580fae70c90ad60996eb46137fa45df6f478b1893f2efb073064f56be76c28a184f97a6bc83f52dfec3511351c2cd99031ae0ea826e601a64f5b2b2289c05d5eccaf2b3d5f7f2d4b3c51c1e0b7991ca6e1fd0dd08dcf27871537b146372a323f87aca94d904f6e572aeacc1d2c8a67c6825e9c035cbd5c85c521275407a555c11b18f15941d8189cea9da0bd48cf03f50877264c4584c0cf3ebcec27b6e3e15f3bd8fdf3b6c6a6f1c3ebabb502497b54201592f433208b6f2f3455cae87edc978bb4d5bc1d016e7c4ab3b3c4a06f25ba2d74952d31e59ab6b77d847f9b37997e8c655e97ba4795240f36d4fd54d84cd3f1cf066d09513a559ff36aadcf29fc3ac727184e0990cc18c155d7b2af81f1ccf40f8c8cea2d5d32e25a765152eea8df20ff73eb928b06dd8c038c8cd0c53be02c0cd2d75b43481f72e930c75a5dae2497d16139e91731080f9544978c136cdb6bbdf151719e38db954396e1009d47fbbd49ba4a7682822b044b16b7dbd23b446fa5d2357f5fd2eb7b84d1c2bfb7a80a5d91322d4bf335d6aa7a414420f3d5ce6e7143be433c06996c60388b6ccdca2bc17840a234e20512c6cf96a0dda7527c548d374f04f4f469c8be815f19d172ca18b4470cefd3251e057000829ed111b0e4e91cfb849888ac420b959d74c025405906e05c4f0d1a74ca2a920b729da17df08f26a0e06a2f19930d345dcc2174caf998a085dc5cadc4793380e3df5245ff3622c1235e24937946cb5345cc41a3eacf47c974f6d4d30db048b3773cc1423616efde77388634e7fb21d92c3afa0d287bb1a30d264e902e85bcd5efb2f27ffcf2e084f7e3a93559fd35b269010bd8b4eb0a2eba6c5797dfc6db5706956e944c6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0x1000, 0x6}, {&(0x7f0000000100)="380249dd7bfd6f7de616e3de8fc60e41c6948464d133864581f97791235dcf9a4ec3a297c961246b067b2a773233e4cbba79aad9181ceb6dcb4d1459752dc6b55c2687f7fb36c02ddcb6a5c97b30b5198ef690d4d37fc26b336ccdd313510c49da9d3e77095b57f67014", 0x6a}, {&(0x7f0000000240)="a8219f766bfdde27457449b4d7e64528dc036c29d25c674459c99c91b6fbed6a47ba12cc9f851f9bad40472dcb40f0ba2a689ea267f3fff778d3ba288eb9c330170ab014596ec26d4a53", 0x4a, 0xfffffffffffffffc}, {&(0x7f00000002c0)="dca7dd3324ff23778d214d90d89a4382ce83aa22b67b2f09fcd6be6acd179c7372698b042c70131e29605387e14bf095d26029b6e57619573e7c6b3062ba857e339e49b19cca2be31c6e6e4b906393d2d065fee7f5b61a6f4b3201a1e5c8606a73e60c3ad8a850f2eda4f87cb789b54606ae6d861b", 0x75, 0x841a}, {&(0x7f00000017c0)="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", 0x1000, 0x1}, {&(0x7f0000000340)="d23c6fd21c27a8655a158119b89ee8e8f23da42b76e2e96e0c14bf42563f599a57c199ee6679ea701c0f2596b14b1c53ec46efc80b49da6d8ce093595d20fa169d60a4312f6188f9a47f40d58dda64cf46cb312e40ea9d052fc2ba0e079ead59d25a0770af509cf3768bef1e39ecc41eb90154522ef0cfd2de87396253562c994c407ca8d1950f97a2b7f32aaf518fd12f2753a25d36822712a79e76595f7dcef11ece9b9f7b591c63fc691beb5e7020d1f0cf7517aee6e01ba97b74d7b27d144762f1fe83c2cbedd0421bc7424e92686f5a2036b3642ac66a5df925a52830", 0xdf}], 0x0, &(0x7f0000000500)={[{@numtail}, {@shortname_lower}, {@shortname_winnt}, {@iocharset={'iocharset', 0x3d, 'macgreek'}}], [{@fowner_gt={'fowner>', r1}}, {@euid_gt={'euid>', r2}}]}) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:24 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000340", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:24 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xc803, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:24 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x57, 0x0, 0x0, 0x0, 0x0) 01:16:24 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x140000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 529.886530][T29758] loop1: detected capacity change from 0 to 16383 01:16:24 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x58, 0x0, 0x0, 0x0, 0x0) 01:16:24 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cfc0300", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 529.978698][T29758] FAT-fs (loop1): Unrecognized mount option "fowner>00000000000000000000" or missing value [ 530.059613][T29758] loop1: detected capacity change from 0 to 16383 [ 530.064138][T29766] nbd: couldn't find device at index -1577385984 [ 530.080709][T29758] FAT-fs (loop1): Unrecognized mount option "fowner>00000000000000000000" or missing value 01:16:24 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x4) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:24 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x59, 0x0, 0x0, 0x0, 0x0) 01:16:24 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x141000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:24 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cfe0300", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 530.197592][T29766] nbd: couldn't find device at index -1577385984 01:16:24 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffe0", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:24 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xec03, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:25 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) syz_mount_image$omfs(&(0x7f0000000040), &(0x7f0000000080)='./file0\x00', 0x1000, 0x3, &(0x7f0000000400)=[{&(0x7f00000000c0)="cafaf41f7b2f66e02f25a9307fab86bcbe65fe419e0ce638236e95e4fbcb85094540ddadc3ad0499d83c46cde170e22c674b64ea931a0e9c10c8539e5c91df4ca124bec2726badf23e4a7682e30977bed1fd3afcebd298e22c4e5061b8f80f35138ec2cfedd848ce8347ccb255f9ae175ea80ea5344ecd98ce75558bdfd0f88380004fbf58", 0x85, 0x1}, {&(0x7f0000000240)="78284038f73c6e6617f4637c0bf2c1686153e0a6135544f28583b5821c7597c78927b036accca5ca7d0bee7b1dd589446b3a38ec4d6565f4e896a6e11ec4076c0431475281365c789c1d8877fe7a415167d0ba3d8c6e07dd2dea9f22eda75460e868372cf3fae7f30db33a87e444f5fdbae8186e514f99e206f7b59d0d3e145d46f1b4c39988f0f4bbf00d996116a163ebd61b2d0055f32125e992f31b18a0db9dc179175c05552907191bf2f5e5b5c96220d193c246d3012622", 0xba, 0x8000000000fff}, {&(0x7f0000000300)="908b38ade288bc18d4fbc29e36f6beae990884d7595f797586ab715cce956fda45bd2457e67cc70e59d4a61625407a488ce8f9433a7d8f53dc7cf43938a3538bf1b09f5c4b0e00062bb8b113ef74797d9266e70b40459f2dc6d0611f5bb5a1cf8977a864dc943d76df326d0569f7b07b5294e24fccdd25a964d47d5358368908d48cc9be8257e4ffc1cc7d35273ef501bc69301c3d944598fd4eb0f85598c9c2b8c04f3af5ad6f0667653c3abcd042886de05725ad5e6aac5f2d0d758dca3b6f29766f3bd821ad085850c2b8a9ca16e512cd708909745ade7b2e1f442ffb0c2866c9615dd2b7", 0xe6, 0xbd}], 0x1000, &(0x7f0000000500)={[{}], [{@fowner_lt={'fowner<', 0xffffffffffffffff}}, {@obj_user={'obj_user', 0x3d, 'R\x0eL\xf3\xd6\xba\x8b\xaeEw\xb8\x8fR\xba\xa4\x85EwH\xb3\"\n\xed\x00\x00\x00\x00\x00\x00\x00\x00\x00'}}, {@appraise}, {@dont_appraise}, {@smackfshat}, {@rootcontext={'rootcontext', 0x3d, 'unconfined_u'}}]}) 01:16:25 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000500", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:25 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x5a, 0x0, 0x0, 0x0, 0x0) 01:16:25 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cfffff0", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:25 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x142000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 530.618230][T29810] nbd: couldn't find device at index -1577385984 01:16:25 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000600", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:25 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x5b, 0x0, 0x0, 0x0, 0x0) [ 530.688103][T29823] loop1: detected capacity change from 0 to 32783 01:16:25 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:25 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xf000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:25 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\a\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 530.931188][T29823] loop1: detected capacity change from 0 to 32783 01:16:25 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x5c, 0x0, 0x0, 0x0, 0x0) 01:16:25 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) mount$overlay(0x0, &(0x7f0000000040)='./file0/file0\x00', &(0x7f0000000080), 0x4, &(0x7f00000000c0)) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:25 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x143000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:25 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:25 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\t\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 531.249471][T29856] nbd: couldn't find device at index -1577385984 01:16:25 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x144000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 531.326456][T29861] nbd: couldn't find device at index -1577385984 [ 531.341314][T29871] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:25 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x5d, 0x0, 0x0, 0x0, 0x0) 01:16:26 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xf003, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:26 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:26 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c001f00", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:26 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x145000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 531.599285][T29890] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:26 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x5e, 0x0, 0x0, 0x0, 0x0) [ 531.762766][T29891] nbd: couldn't find device at index -1577385984 01:16:26 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:26 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00,\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 531.814231][T29900] nbd: couldn't find device at index -1577385984 01:16:26 executing program 1: setsockopt$ALG_SET_AEAD_AUTHSIZE(0xffffffffffffffff, 0x117, 0x5, 0x0, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x2, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0x0, 0x3, 0x5, 0x0, 0x2, 0x0, 0x0, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0) ioctl$HIDIOCGCOLLECTIONINDEX(r1, 0x40184810, &(0x7f0000000240)={0x3, 0x3, 0x2, 0x0, 0x6, 0x9caa}) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) r3 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f00000000c0), 0x2, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r3, &(0x7f00000001c0)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000080)={0xffffffffffffffff}, 0x13f}}, 0x20) write$RDMA_USER_CM_CMD_LISTEN(r3, &(0x7f0000001a00)={0x7, 0x8, 0xfa00, {r4, 0x8001}}, 0x10) write$RDMA_USER_CM_CMD_CONNECT(r2, &(0x7f0000000040)={0x6, 0x118, 0xfa00, {{0x5, 0x8, "40be64ebc9536351cb532f5c981929046a85968945355175497397b92d0e711f9b244aa4e932773563a0fa2304d05144d8a7df2402e2c9b6a7247603240b81dba352f24ebd48aad9759b47f93bdb7f797d3a7332e1013973f06eba6bd50282610593c75621463f4cd2b1495cde7f3c66ab0200000099ef8357ef9e6b0dedb7b04b4000000059e9a9ada72ec9e23985f2fd81349f901b75248cab28ce1294e10418dbd35fbd92040f6bcffb7903e77e63e2d6fcef43248fe266fc755ed3b1bb48890f886928b4dd2a4d5ebc086e895ba3527f6db3dcced19766677c6bc0fa200000002c36cd698f86799100", 0x4, 0x2, 0x81, 0x5, 0x4, 0x6}, r4}}, 0x169) 01:16:26 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xfc03, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:26 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x146000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:26 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x5f, 0x0, 0x0, 0x0, 0x0) [ 531.999567][T29912] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:26 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x147000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:26 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:26 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) fspick(r0, &(0x7f0000000040)='./file0\x00', 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:26 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c023e00", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:26 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x60, 0x0, 0x0, 0x0, 0x0) [ 532.326320][T29922] nbd: couldn't find device at index -1577385984 [ 532.399241][T29929] nbd: couldn't find device at index -1577385984 [ 532.424896][T29940] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:27 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x313}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:27 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x148000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:27 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x20000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:27 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00?\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:27 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:27 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x61, 0x0, 0x0, 0x0, 0x0) 01:16:27 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) ioctl$FIGETBSZ(r0, 0x2, &(0x7f0000000000)) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) syz_mount_image$zonefs(&(0x7f0000000040), &(0x7f0000000080)='./file0\x00', 0x7, 0x5, &(0x7f0000000400)=[{&(0x7f00000000c0)="f6c7215006d1a8b6684d81567fa281f0b37f60c13ac801d4ad4263b2d48500ec476602f953f7041ad9303b963b4e569874e86d1b4f01347ea952c8bcf7db65f12b6e05daa8669a7c8acc7d06f913833be6e97693d936a00ad01d85eb6fa85f7b9b", 0x61, 0x2}, {&(0x7f0000000240)="35dd3e653f7861671edbfaf4f0cc2c03e3e94c2488679d305fef92e88cdebfcfe39d7905a1078be45d4e1341fa10e4f72c2e963b91c5dbd22fe23856d824af06263a6cdaa6d0eb340be57b8e7fa00d6dc2f52925a7211cbb6f610ea3e1045df5844a95f6", 0x64, 0x13662d4d}, {&(0x7f0000000140)="067128c3c45b1c64d45a9940d964c62b2284a5d5b0629320", 0x18, 0xeea6}, {&(0x7f00000002c0)="7715af9755b0f379d32dd5c38e94e55006ae21aeb434956a1ca88fb53596c1743411b1c336831f56187a38f017dddd919ad29f09ba185cc412f2ca8f7f2f29f0e423080544f5dc0f8727b1f43bf82b1ee5115af788d72aad32a55de7313d96ed9f7f6b3b706496b71a50ed4ed4c04c3dbf2e3e00638870d570d483df", 0x7c, 0x6}, {&(0x7f0000000340)="a4b1a5cbef8b1e4f44cf599e50d7ab5a001cb75ec51430c0b65818a16f8af0e9efcd3c0b725436abaa6ba28726e8599ff380bb14fa5aa9bc163992b003e57012ed1d5500e9a215d39bab0298d453c22ac8bbff5d55bde47390c652bf9478ddac008e8bd8d1d4afc99186197daa07c243f816767d54a955b821d7a8875c7e89cbb5825a18456c0da618c182c8c7f37b", 0x8f, 0x1}], 0x4, &(0x7f0000000480)={[{@explicit_open}, {@errors_repair}, {@errors_zone_offline}], [{@context={'context', 0x3d, 'staff_u'}}]}) r2 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./file0\x00', 0xfa403, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:27 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x62, 0x0, 0x0, 0x0, 0x0) [ 532.853226][T29961] nbd: couldn't find device at index -1577385984 01:16:27 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x149000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:27 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 532.911544][T29968] nbd: couldn't find device at index -1577385984 [ 532.971674][T29982] loop1: detected capacity change from 0 to 214573 [ 532.987673][T29982] zonefs (loop1) ERROR: Not a zoned block device 01:16:27 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00H\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:27 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x14a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:27 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f11, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 533.087837][T29982] loop1: detected capacity change from 0 to 214573 [ 533.106785][T29982] zonefs (loop1) ERROR: Not a zoned block device [ 533.117355][T29991] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:27 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x63, 0x0, 0x0, 0x0, 0x0) 01:16:27 executing program 1: r0 = gettid() ptrace$setopts(0x4206, r0, 0x0, 0x5) tkill(r0, 0x34) ptrace$cont(0x18, r0, 0x0, 0x0) ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080)) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0xfffffffffffffc00}}, r0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:27 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00L\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:27 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:28 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3dfffe}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:28 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x64, 0x0, 0x0, 0x0, 0x0) 01:16:28 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x14b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 533.550830][T30008] nbd: couldn't find device at index -1577385984 01:16:28 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00P\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 533.602428][T30019] nbd: couldn't find device at index -1577385984 01:16:28 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:28 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f12, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:28 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x65, 0x0, 0x0, 0x0, 0x0) 01:16:28 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x80000000, 0x3}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffe}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='./file1\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000740)=[{&(0x7f0000000400)=""/252, 0xfc}, {&(0x7f0000000500)=""/153, 0x99}, {&(0x7f00000005c0)=""/99, 0x63}, {&(0x7f0000000640)=""/240, 0xf0}], 0x4, 0x0, 0x0) r2 = socket$inet6_sctp(0xa, 0x10000000005, 0x84) r3 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000240)='/proc/asound/timers\x00', 0x0, 0x0) getsockopt$bt_hci(r3, 0x0, 0x2, &(0x7f0000000280)=""/197, &(0x7f0000000380)=0xc5) r4 = openat2(r0, &(0x7f00000007c0)='./file0\x00', &(0x7f0000000800)={0x189000, 0xc3, 0x8}, 0x18) accept4$netrom(r4, &(0x7f0000000840)={{0x3, @netrom}, [@netrom, @bcast, @remote, @remote, @remote, @rose, @bcast, @null]}, &(0x7f00000008c0)=0x48, 0x0) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(r2, 0x84, 0x1d, &(0x7f0000000100)=ANY=[@ANYBLOB="83a4edc4c2bb2ddae2a4be14e3eb8bd1aafc75be86430e8da432ccc8ac0d14c700f84681a92f046098c2d6b04ab687559d6ad6067da1648bad80b9dfca1f", @ANYRES32=0x0], &(0x7f000095dffc)=0x8) setsockopt$inet_sctp6_SCTP_DEFAULT_SNDINFO(r2, 0x84, 0x22, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, r5}, 0x10) accept(r2, 0x0, &(0x7f00000003c0)) r6 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r6, 0x0) preadv(r6, &(0x7f0000000280), 0x18, 0xd9f, 0x0) setsockopt$inet_sctp6_SCTP_SET_PEER_PRIMARY_ADDR(r6, 0x84, 0x5, &(0x7f0000000040)={r5, @in6={{0xa, 0x4e21, 0x81, @private0, 0x8}}}, 0x84) 01:16:28 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x14c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 533.910800][T30043] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:28 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x66, 0x0, 0x0, 0x0, 0x0) 01:16:28 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:28 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00h\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 534.120128][T30050] nbd: couldn't find device at index -1577385984 01:16:28 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x14d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 534.165317][T30059] nbd: couldn't find device at index -1577385984 [ 534.221367][T30065] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:28 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x67, 0x0, 0x0, 0x0, 0x0) 01:16:28 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00l\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:28 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f13, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:28 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) write$binfmt_script(r0, &(0x7f0000000240)=ANY=[@ANYBLOB="2321202e2f66696c6530202d295d2a25207b2e29bb7d7d2e2d252d20200a3be6f92794fb4e571e15afe2c903a4842b168b2a79e62c8b88d5753d8cf980367a50160907d97e5285721f79ded7a336a57c7244e5a536649cf11f155c12d4352e6a18a15c97c3615b36ff7740ff1f0fc256d9f7121a15da90a79f244a95ef23bfbf1d32a33646f58c44ab50b8672ce5f0472763098f551481f93d7df23731e3ded385ee60f9dee91842813241e2c5d859cb65d6d45b2ea2b227ba4be8d56b5288957b35e2d69bb4150105e2343f94c2a5dc3edb41f87956febff28650dd85ddde8419bff7042ed8696bf3b8ab543b16d6cacfac29fff0b5d1bb6135a2c4952d58"], 0xf1) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0xa967, 0x3e0000}], 0x3e0000) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) inotify_init1(0x800) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800002, 0x20010, r0, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:28 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:29 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x68, 0x0, 0x0, 0x0, 0x0) 01:16:29 executing program 1: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) connect$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @fixed}, 0xe) shutdown(r0, 0xc82a0449170c81e1) ioctl$sock_SIOCDELRT(r0, 0x890c, &(0x7f0000000080)={0x0, @sco, @ethernet={0x306, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x3}}, @hci, 0x5, 0x0, 0x0, 0x0, 0xfff9, &(0x7f0000000040)='team_slave_0\x00', 0x3, 0x1, 0x5}) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) close(r1) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mkdirat(r2, &(0x7f0000000100)='./file0\x00', 0x22) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) fcntl$setflags(r1, 0x2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) pipe2(&(0x7f0000000140)={0xffffffffffffffff}, 0x800) sendmsg$NFNL_MSG_ACCT_NEW(r3, &(0x7f0000000380)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x1}, 0xc, &(0x7f0000000340)={&(0x7f0000000280)={0xbc, 0x0, 0x7, 0x101, 0x0, 0x0, {0x7}, [@NFACCT_BYTES={0xc, 0x3, 0x1, 0x0, 0x800}, @NFACCT_FILTER={0x14, 0x7, 0x0, 0x1, [@NFACCT_FILTER_VALUE={0x8, 0x2, 0x1, 0x0, 0x80000001}, @NFACCT_FILTER_VALUE={0x8, 0x2, 0x1, 0x0, 0x6}]}, @NFACCT_BYTES={0xc, 0x3, 0x1, 0x0, 0x2}, @NFACCT_PKTS={0xc, 0x2, 0x1, 0x0, 0x9}, @NFACCT_PKTS={0xc, 0x2, 0x1, 0x0, 0x800}, @NFACCT_PKTS={0xc, 0x2, 0x1, 0x0, 0x1}, @NFACCT_QUOTA={0xc, 0x6, 0x1, 0x0, 0x1f}, @NFACCT_FILTER={0x34, 0x7, 0x0, 0x1, [@NFACCT_FILTER_MASK={0x8, 0x1, 0x1, 0x0, 0xa}, @NFACCT_FILTER_MASK={0x8, 0x1, 0x1, 0x0, 0x3}, @NFACCT_FILTER_VALUE={0x8, 0x2, 0x1, 0x0, 0x3f}, @NFACCT_FILTER_VALUE={0x8, 0x2, 0x1, 0x0, 0x1}, @NFACCT_FILTER_MASK={0x8, 0x1, 0x1, 0x0, 0x3}, @NFACCT_FILTER_MASK={0x8, 0x1, 0x1, 0x0, 0xffffb3b0}]}, @NFACCT_BYTES={0xc, 0x3, 0x1, 0x0, 0x1ff}, @NFACCT_QUOTA={0xc, 0x6, 0x1, 0x0, 0x7}]}, 0xbc}, 0x1, 0x0, 0x0, 0x88}, 0x11) 01:16:29 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x14e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 534.670276][T30088] nbd: couldn't find device at index -1577385984 [ 534.703217][T30097] nbd: couldn't find device at index -1577385984 01:16:29 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00t\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:29 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:29 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f14, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:29 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x69, 0x0, 0x0, 0x0, 0x0) 01:16:29 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x14f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:29 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x6a, 0x0, 0x0, 0x0, 0x0) [ 535.043883][T30120] nbd: couldn't find device at index -1577385984 01:16:29 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00z\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:29 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:29 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f15, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:29 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x150000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 535.266042][T30140] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 535.471689][T30143] nbd: couldn't find device at index -1577385984 [ 535.518200][T30150] nbd: couldn't find device at index -1577385984 01:16:30 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x6b, 0x0, 0x0, 0x0, 0x0) 01:16:30 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c029000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:30 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:30 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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}, 0x10001, 0x401}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x1010, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:30 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x151000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:30 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f16, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:30 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c009200", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:30 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x6c, 0x0, 0x0, 0x0, 0x0) [ 535.752280][T30169] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:30 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r2, 0x80247008, &(0x7f0000000080)) ioctl$BTRFS_IOC_GET_SUBVOL_ROOTREF(r0, 0xd000943d, &(0x7f00000007c0)={0x5, [{}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {0x0}], 0x20, "8e5e7deb2e7781"}) accept4$unix(r1, &(0x7f0000000440)=@abs, &(0x7f00000004c0)=0x6e, 0x80000) syz_open_dev$rtc(&(0x7f0000000140), 0x1ff, 0x800) clone(0x80000, &(0x7f0000000240)="75714f6e66b03e94e7f6846c997d60e16fdee29d216a417f1e2838eec410639ba083c36733673b48ee941618cad2decbcc5ca6357a0ef4994a713f29a164824cca917d39ac417e1bcb9d50d63a704b10fb279c6555c04239f51d1a6738d19161ba9528c9c4f045876707a31669d8ad93e8ddbd135d3ba3092c13efb5426d4a8db1bae712ba38e6057425de6b3cca8ae0e8c0cda681b080b70356feb7c196ae6639e0953016edc98bad4a5015402c7e286e75ff1efe90bac71361fff087880c2a68bdf3b32807ea0997bda6363389fcd5c2b89203e6513d81b8df1a63c1bb392a6ca39cfe66ba1b7529", &(0x7f0000000340), &(0x7f0000000380), &(0x7f00000003c0)="ae1df012b74d47f844b0299ab0545eaaca5b8fa25ca90d5f0cf20ad30aa324eb78579ad7eb3c6d838c3dbcfde59f72c233544afd9f81fef94ea0b9e4220e4a07a23f096f4b978d896afba100e1a145779953b827144983a4f45e3475e0981e886e579ff626dbd8fd57e989abca51318e2841df01c58850227f75d5f8d6577a") ioctl$BTRFS_IOC_TREE_SEARCH_V2(r2, 0xc0709411, &(0x7f0000000080)={{r3, 0x8001, 0x0, 0xfffffffffffffff8, 0x3, 0x4, 0xf5b, 0x0, 0x10001, 0x1000, 0x1, 0x5, 0x87, 0x9}, 0x40, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}) r4 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x8602, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r4, 0x0) preadv(r4, &(0x7f0000000280), 0x18, 0x0, 0x0) r5 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r5, 0x0) preadv(r5, &(0x7f0000000280), 0x18, 0xd9f, 0x0) ioctl$BLKBSZSET(r5, 0x40081271, &(0x7f0000000040)=0x6) 01:16:30 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:30 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x6d, 0x0, 0x0, 0x0, 0x0) [ 536.028667][T30173] nbd: couldn't find device at index -1577385984 01:16:30 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00f000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 536.086392][T30183] nbd: couldn't find device at index -1577385984 01:16:30 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x152000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 536.176853][T30191] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:30 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f17, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:30 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:30 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c03fc00", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:30 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x6e, 0x0, 0x0, 0x0, 0x0) 01:16:30 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x436c41, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:30 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x153000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:31 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x6f, 0x0, 0x0, 0x0, 0x0) [ 536.606393][T30214] nbd: couldn't find device at index -1577385984 01:16:31 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x154000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:31 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c03fe00", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:31 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00000f", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 536.684383][T30218] nbd: couldn't find device at index -1577385984 01:16:31 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0) openat(r1, &(0x7f0000000040)='./file0\x00', 0x80000, 0x86) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) r3 = openat$nvme_fabrics(0xffffffffffffff9c, &(0x7f0000000080), 0x80400, 0x0) preadv(r3, &(0x7f0000000280), 0x0, 0x2, 0x0) 01:16:31 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x70, 0x0, 0x0, 0x0, 0x0) 01:16:31 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f18, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:31 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:31 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000003", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:31 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x155000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:31 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x71, 0x0, 0x0, 0x0, 0x0) [ 537.192477][T30260] nbd: couldn't find device at index -1577385984 01:16:31 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000004", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:31 executing program 1: prctl$PR_GET_NO_NEW_PRIVS(0x27) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0, 0x8}, 0x0, 0x0, 0x0, 0x0, 0x4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000040)='./file0\x00', 0x0, 0x0) openat$vcs(0xffffffffffffff9c, &(0x7f0000000000), 0x200, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) getsockopt$inet_IP_IPSEC_POLICY(r1, 0x0, 0x10, &(0x7f0000000080)={{{@in6=@empty, @in6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@local}, 0x0, @in=@multicast2}}, &(0x7f0000000240)=0xe8) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f0000000300)={'syztnl2\x00', &(0x7f0000000280)={'ip6tnl0\x00', r2, 0x2f, 0x0, 0x7f, 0x80000001, 0x22, @empty, @loopback, 0x80, 0x0, 0x1, 0x3}}) 01:16:31 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x156000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 537.289599][T30266] nbd: couldn't find device at index -1577385984 01:16:31 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:32 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x72, 0x0, 0x0, 0x0, 0x0) 01:16:32 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f19, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:32 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffff1f", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:32 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x157000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 537.503743][T30291] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:32 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:32 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0xa}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) r1 = gettid() ptrace$setopts(0x4206, r1, 0x0, 0x5) fcntl$getownex(0xffffffffffffffff, 0x10, &(0x7f0000000000)={0x0, 0x0}) ptrace$cont(0x1f, r2, 0x200004, 0xff) tkill(r1, 0x34) open(&(0x7f0000000380)='./file0\x00', 0x22000, 0x190) ptrace$cont(0x18, r1, 0x0, 0x0) ptrace$setregs(0xd, r1, 0x0, &(0x7f0000000080)) clone3(&(0x7f00000003c0)={0x2000800, &(0x7f00000000c0)=0xffffffffffffffff, &(0x7f0000000100), &(0x7f0000000140), {0x2a}, &(0x7f0000000240)=""/242, 0xf2, &(0x7f0000000340)=""/26, &(0x7f0000000380), 0x0, {r0}}, 0x58) r4 = syz_init_net_socket$802154_dgram(0x24, 0x2, 0x0) kcmp(0xffffffffffffffff, r1, 0x4, r3, r4) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r5 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r5, 0x80247008, &(0x7f0000000080)) mmap(&(0x7f00002a2000/0x3000)=nil, 0x3000, 0x2, 0x20010, r5, 0x0) preadv(0xffffffffffffffff, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:32 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x73, 0x0, 0x0, 0x0, 0x0) [ 537.764421][T30296] nbd: couldn't find device at index -1577385984 [ 537.795359][T30302] nbd: couldn't find device at index -1577385984 01:16:32 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cfffff0", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:32 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 537.906630][T30317] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:32 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x158000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:32 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x0, 0x5}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0xe, 0x3, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:32 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:32 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x74, 0x0, 0x0, 0x0, 0x0) 01:16:32 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:32 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000001, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) dup(r1) mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000, 0xe44dfc7b61cfdddc, 0x8010, r0, 0x28ebc000) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 538.364109][T30327] nbd: couldn't find device at index -1577385984 01:16:32 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x159000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:32 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x75, 0x0, 0x0, 0x0, 0x0) 01:16:33 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 538.479673][T30327] nbd: couldn't find device at index -1577385984 01:16:33 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) r2 = openat$cgroup_ro(r1, &(0x7f0000000040)='cpuacct.usage_percpu_user\x00', 0x0, 0x0) ioctl$VIDIOC_G_SLICED_VBI_CAP(r2, 0xc0745645, &(0x7f0000000080)={0x3b80, [0x8, 0x3, 0x7, 0x4, 0x4, 0x9, 0x4, 0x7fff, 0x400, 0x5870, 0x0, 0xff, 0x5, 0x6, 0x8, 0x1, 0x80, 0x9, 0x1, 0x87, 0x0, 0x518e, 0x1, 0x3f, 0x6, 0x59, 0x4, 0x7, 0x8001, 0xd1, 0x0, 0x0, 0x9, 0xb03, 0x80, 0x7, 0x9, 0x101, 0xe6b3, 0x401, 0x40, 0x8001, 0x8, 0xffff, 0x800, 0x8, 0x10, 0x55], 0x1}) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:33 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1b, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:33 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:33 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x76, 0x0, 0x0, 0x0, 0x0) [ 538.656238][T30366] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:33 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x15a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:33 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 538.834577][T30375] nbd: couldn't find device at index -1577385984 01:16:33 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\t', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:33 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x77, 0x0, 0x0, 0x0, 0x0) [ 538.961163][T30377] nbd: couldn't find device at index -1577385984 [ 539.013688][T30382] nbd: couldn't find device at index -1577385984 01:16:33 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cd46de8", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 539.065554][T30377] nbd: couldn't find device at index -1577385984 01:16:33 executing program 1: clone3(&(0x7f0000000440)={0x213040880, &(0x7f0000000080), &(0x7f00000000c0)=0x0, &(0x7f0000000100)=0x0, {0x15}, &(0x7f0000000240)=""/194, 0xc2, &(0x7f0000000340)=""/244, &(0x7f0000000140)=[0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff], 0x4}, 0x58) perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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}}, r0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r2 = open(0x0, 0x200100, 0x0) pidfd_open(r1, 0x0) unlinkat(r2, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) open(&(0x7f0000000040)='./file0\x00', 0x302598a320bad197, 0xa) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:33 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1c, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:33 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:33 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x15b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:33 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x78, 0x0, 0x0, 0x0, 0x0) 01:16:33 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 539.567955][T30415] nbd: couldn't find device at index -1577385984 [ 539.644185][T30431] nbd: couldn't find device at index -1577385984 01:16:34 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x15c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:34 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x79, 0x0, 0x0, 0x0, 0x0) 01:16:34 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cf91998", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:34 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:34 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1d, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:34 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) syz_mount_image$hpfs(&(0x7f0000000080), &(0x7f0000000400)='./file0\x00', 0x5ba, 0x6, &(0x7f00000017c0)=[{&(0x7f0000000440)="44eaedc74ca7ebff940773cc4b21a74dbc9d4d8748468c73625036a05beafd0f59a1fa9de48ecdbb038c745e13ea6a721d55259bb4a6fc2123a9584d13070a83cb9189a278", 0x45, 0x9}, {&(0x7f00000007c0)="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", 0x1000, 0x6}, {&(0x7f00000004c0)="b618857586479c737eb99de70eb1f94eb7492acc3aac0f7df4e44281ffaf1a2180260b98990199e50b35fa48d5726cc5efcc8dc6e713403d16c4d28d6c0809744dd7088941a9dd158869ecba7dcc247036ad4a13e41e6300de32390202e655c302bb34d2023695490a9ebb7780e07e08a9c6253002e90519aec1115c39b4efdc1f7d41b78af25a53eddcb17fc8bde8ca00f86f47a7d4ab46b8efef246c78577b57d8e80d126a34274aa459c215dcc2aaaa9211b098deded431d73c", 0xbb, 0x100}, {&(0x7f0000000580)="8d71c074c262", 0x6, 0xffffffffffffff8d}, {&(0x7f00000005c0)="8ee68489899ad8c532d3ed99071ac0da74a0875d64acb3843fed47ea773ed6972230cbeaad97f8143a801b0e381de6eb1e99e113f738b11e4f0a7a704e7492c808964834f26879af51a5b0b544098dbbfe0a82ac154e26e60d5b0b350223660b734329b8f17107ffab4a99d93eb0282244ed7e1a744b828de0308dac234f209bf7f2e9fb286e20fcf9ad1eeb763d0979956d4331c575549eb2e69596b7bed83792daa8d615fbf03ebd852070a958060386e9c78993", 0xb5, 0x1}, {&(0x7f0000000680)="4100aacead1ff8041cac58bdca11254ce16ecf43433da21ed61a40f162fbcf335a57c7a5ae0cadc6d4d0c18c07d90231bcf65c15e2623dc8bc16fff8425e2b8d26d6579563d488d58786ca21cfb5d983d918a8d45b642e89963cefb2ccaf912434a083fefea9c4c00370ce1e717e347f4b2c6f0c961b576e15cb", 0x7a, 0x9}], 0x810, &(0x7f0000000700)={[{'::$'}], [{@smackfsfloor={'smackfsfloor', 0x3d, '{+!'}}, {@fsmagic={'fsmagic', 0x3d, 0x2978}}]}) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0xd9f, 0x0) r3 = bpf$ITER_CREATE(0x21, &(0x7f00000002c0)={r1}, 0x8) mkdirat(r3, &(0x7f0000000300)='./file0\x00', 0x48) ioctl$sock_ipv6_tunnel_SIOCCHGPRL(r2, 0x89f7, &(0x7f0000000140)={'ip6_vti0\x00', &(0x7f0000000240)={'ip6tnl0\x00', 0x0, 0x4, 0x5, 0x9a, 0xffffa966, 0x3a, @mcast2, @loopback, 0x7800, 0x20, 0x80000001, 0x3}}) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0) ioctl$vim2m_VIDIOC_DQBUF(0xffffffffffffffff, 0xc0585611, &(0x7f00000018c0)={0x0, 0x2, 0x4, 0x2, 0x0, {}, {0x1, 0x0, 0xa9, 0x0, 0x4b, 0xc2, "27de4e66"}, 0x401, 0x1, @offset=0x4, 0xedd0, 0x0, r0}) sendmsg$nl_route(r1, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x4000}, 0xc, &(0x7f00000000c0)={&(0x7f0000000340)=@dellinkprop={0x90, 0x6d, 0x200, 0x70bd25, 0x25dfdbfe, {0x0, 0x0, 0x0, 0x0, 0x40800, 0x2005}, [@IFLA_PROP_LIST={0x68, 0x34, 0x0, 0x1, [{0x14, 0x35, 'veth0_to_bridge\x00'}, {0x14, 0x35, 'ipvlan0\x00'}, {0x14, 0x35, 'sit0\x00'}, {0x14, 0x35, 'netpci0\x00'}, {0x14, 0x35, 'virt_wifi0\x00'}]}, @IFLA_MTU={0x8, 0x4, 0x4}]}, 0x90}, 0x1, 0x0, 0x0, 0x40041}, 0x24000051) r4 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r4, 0x0) preadv(r4, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:34 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x7a, 0x0, 0x0, 0x0, 0x0) [ 539.972736][T30442] nbd: couldn't find device at index -1577385984 [ 540.004681][T30450] nbd: couldn't find device at index -1577385984 01:16:34 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:34 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x15d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:34 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:34 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:34 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x7b, 0x0, 0x0, 0x0, 0x0) [ 540.183387][T30464] loop1: detected capacity change from 0 to 16383 [ 540.214923][T30464] hpfs: bad mount options. [ 540.307093][T30464] loop1: detected capacity change from 0 to 16383 [ 540.316667][T30474] nbd: couldn't find device at index -1577385984 [ 540.392562][T30480] nbd: couldn't find device at index -1577385984 01:16:35 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:35 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x15e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:35 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x7c, 0x0, 0x0, 0x0, 0x0) 01:16:35 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2ced9819", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 540.635720][T30487] nbd: couldn't find device at index -1577385984 [ 540.663741][T30504] nbd: couldn't find device at index -1577385984 [ 540.722510][T30493] nbd: couldn't find device at index -1577385984 01:16:35 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f00000000c0)=[{0x0, 0x32, 0x0, 0x3e0000}, {&(0x7f0000000040)="fee77beb89ce7239ad313a4b0b678de188bd2776b2380692deb880d97b49604fa807abe67885605b2b232be9fc1cae956932d00f655c33e3fa3428de115cdc08eb74f0894551151f4969fd5400bdc6cdcc124341c94ecbaa2f700d04719c29", 0x0, 0x5, 0x1}], 0x3e0000) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0xd9f, 0x0) r2 = openat(r1, &(0x7f0000000000)='./file0\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:35 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:35 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x7d, 0x0, 0x0, 0x0, 0x0) 01:16:35 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:35 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00e0ff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:35 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x15f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:35 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x7e, 0x0, 0x0, 0x0, 0x0) 01:16:35 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r1 = open(0x0, 0x200100, 0x0) perf_event_open(&(0x7f0000000080)={0x2, 0x80, 0xa6, 0x9, 0x1, 0x0, 0x0, 0x7, 0x2, 0x7, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x5, 0x2, @perf_bp={&(0x7f0000000040)}, 0x10000, 0x9, 0x7ddb1d7e, 0x9, 0xfffffffffffffffd, 0x10000, 0x2, 0x0, 0x9, 0x0, 0x6}, 0x0, 0x3, r0, 0x8) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000100), 0x2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 541.095710][T30525] nbd: couldn't find device at index -1577385984 01:16:35 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x82, 0x0, 0x0, 0x0, 0x0) [ 541.291836][T30530] nbd: couldn't find device at index -1577385984 01:16:35 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$VIDIOC_TRY_EXT_CTRLS(r0, 0xc0205649, &(0x7f0000000080)={0x9c0000, 0x9, 0x7, r0, 0x0, &(0x7f0000000040)={0x990a93, 0x3, '\x00', @value64=0xfffffffffffffff7}}) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) r3 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000080)={'vcan0\x00', 0x0}) bind$packet(r3, &(0x7f0000000140)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @random="ecee8b1483f4"}, 0x14) ioctl$sock_inet6_SIOCSIFADDR(r1, 0x8916, &(0x7f00000000c0)={@local, 0x44, r4}) 01:16:35 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x160000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 541.338841][T30535] nbd: couldn't find device at index -1577385984 [ 541.382753][T30537] nbd: couldn't find device at index -1577385984 01:16:36 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00f0ff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:36 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:36 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f20, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:36 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x83, 0x0, 0x0, 0x0, 0x0) 01:16:36 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x161000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:36 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00ffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 541.670695][T30575] nbd: couldn't find device at index -1577385984 01:16:36 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) open(&(0x7f0000000340)='./file0\x00', 0x8a00, 0x55) r1 = socket$inet6_udp(0xa, 0x2, 0x0) r2 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r2, 0x80247008, &(0x7f0000000080)) read(r2, &(0x7f0000000040)=""/3, 0x3) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) mmap$perf(&(0x7f0000521000/0x4000)=nil, 0x4000, 0x3000006, 0x10, 0xffffffffffffffff, 0xfffffffffffffffb) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) write$binfmt_script(r1, &(0x7f0000000240)=ANY=[@ANYBLOB="2321202e2f66696c6530202f6465762f72746330000a08e6deb1db9725652507a2fad5dd34d9c7f51b60c301201cbdc932f121e23a1a43dd1c0885614e94f807b89b6faee0d773aed7bf6b60432b9dcf1c795a3a29345f154f06ff0fb2c8797163fe0c77a18e9cd9709d4b34e178cc2b71644acfd6745a2117edce4a9dfbcdd98f2b7b5aaed8dcf768cc359b26408e084e5586eed267c61ef1c821bb9e9039d8cf1919b592b8cb2bb74e497313ffa46adfc6bafc394366b743562df43dc7e5cd4989bdf6dbad04f85de1c12952ae5eaff014b4c2199fe0a241e0111deb7fe6436649d525f1f1ac61"], 0xe8) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x12, 0x1, 0x2) r4 = accept4$ax25(r0, &(0x7f00000000c0)={{0x3, @default}, [@bcast, @remote, @default, @remote, @null, @netrom, @rose, @bcast]}, &(0x7f0000000140)=0x48, 0x800) fallocate(r4, 0x23, 0xffff, 0xfffffffffffff800) ioctl$RTC_UIE_ON(r3, 0x7003) 01:16:36 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x84, 0x0, 0x0, 0x0, 0x0) [ 541.881449][T30578] nbd: couldn't find device at index -1577385984 [ 541.932901][T30584] nbd: couldn't find device at index -1577385984 01:16:36 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x162000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:36 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) ioctl$sock_SIOCSIFVLAN_SET_VLAN_NAME_TYPE_CMD(r0, 0x8983, &(0x7f0000000040)={0x6, 'vxcan1\x00', {0x9}, 0x1}) 01:16:36 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f21, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:36 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c7fffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:36 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:36 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x85, 0x0, 0x0, 0x0, 0x0) 01:16:36 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) mmap(&(0x7f00004ec000/0x1000)=nil, 0x1000, 0x0, 0x40010, r0, 0x8adc1000) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 542.275249][T30616] nbd: couldn't find device at index -1577385984 [ 542.349646][T30621] nbd: couldn't find device at index -1577385984 01:16:37 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x163000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:37 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 542.409722][T30624] nbd: couldn't find device at index -1577385984 01:16:37 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c9effff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:37 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x86, 0x0, 0x0, 0x0, 0x0) 01:16:37 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f22, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 542.607352][T30640] nbd: couldn't find device at index -1577385984 01:16:37 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:37 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x164000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 542.697889][T30645] nbd: couldn't find device at index -1577385984 01:16:37 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cf0ffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:37 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:37 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x87, 0x0, 0x0, 0x0, 0x0) [ 542.918510][T30655] nbd: couldn't find device at index -1577385984 [ 542.969419][T30663] nbd: couldn't find device at index -1577385984 01:16:37 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x165000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:37 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:37 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f23, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:37 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0xc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffe}, 0x0, 0x7, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) r2 = gettid() ptrace$setopts(0x4206, r2, 0x0, 0x5) tkill(r2, 0x34) ptrace$cont(0x18, r2, 0x0, 0x0) ptrace$setregs(0xd, r2, 0x0, &(0x7f0000000080)) pipe(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) perf_event_open(&(0x7f0000000040)={0x0, 0x80, 0xc0, 0x4, 0x8, 0xc6, 0x0, 0x2, 0x10000, 0x8, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x2, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0xffff0000, 0x4, @perf_config_ext={0x89, 0x7}, 0x0, 0x9, 0xda2, 0x0, 0x80, 0x2, 0xbb55, 0x0, 0x2, 0x0, 0x6546}, r2, 0x10, r3, 0xa) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) preadv(r4, &(0x7f0000000280), 0x0, 0x0, 0x100000) 01:16:37 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x88, 0x0, 0x0, 0x0, 0x0) [ 543.229119][T30677] nbd: couldn't find device at index -1577385984 [ 543.280654][T30685] nbd: couldn't find device at index -1577385984 [ 543.375499][T30693] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:38 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:38 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x89, 0x0, 0x0, 0x0, 0x0) 01:16:38 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x166000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:38 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) lremovexattr(&(0x7f00000000c0)='./file0\x00', &(0x7f0000000140)=ANY=[@ANYBLOB="737973baf96d2e26003724304a1c047e488995edce2c46b87be01adaaa724f0ba30787cf4f8943523c68817864ac931651"]) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) r3 = perf_event_open(&(0x7f0000000040)={0x5, 0x80, 0x40, 0x20, 0x20, 0x5, 0x0, 0xfff, 0x8090, 0x5, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x3, 0x6, @perf_config_ext={0x5, 0x1000}, 0x10, 0x81, 0x20, 0x0, 0x5, 0x9, 0x3, 0x0, 0xfffffff8, 0x0, 0xdad}, 0xffffffffffffffff, 0xc, 0xffffffffffffffff, 0x0) ioctl$RTC_ALM_READ(0xffffffffffffffff, 0x80247008, &(0x7f0000000080)) r4 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r4, 0x80247008, &(0x7f0000000080)) r5 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r5, 0x80247008, &(0x7f0000000080)) r6 = openat$uhid(0xffffffffffffff9c, &(0x7f0000002440), 0x2, 0x0) r7 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r7, 0x80247008, &(0x7f0000000080)) r8 = openat$cuse(0xffffffffffffff9c, &(0x7f0000002480), 0x2, 0x0) sendmmsg$unix(0xffffffffffffffff, &(0x7f00000025c0)=[{&(0x7f0000000240)=@abs={0x0, 0x0, 0x4e21}, 0x6e, &(0x7f0000000340)=[{&(0x7f00000002c0)="afdc2fcf22677c58b325f5394f54849384e025b6d5fa2b04164a62542eb6512eebc2cbedaccc1d6d2b967829622b49c172d8e0db36f3ed4c1982c34efc2ab1b69165994cda11313c1ba3c7bd04461632", 0x50}], 0x1, &(0x7f0000000a00)=[@cred={{0x1c}}, @rights={{0x38, 0x1, 0x1, [0xffffffffffffffff, r2, r3, 0xffffffffffffffff, r0, 0xffffffffffffffff, r2, r0, 0xffffffffffffffff, r0]}}, @rights={{0x24, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, r1, 0xffffffffffffffff]}}, @rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff]}}, @rights={{0x20, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, r2, r0]}}], 0xc0, 0x40001}, {&(0x7f0000000ac0)=@file={0x1, './file0\x00'}, 0x6e, &(0x7f0000000740)=[{&(0x7f0000000b40)="e053978e4bb4047336275686d372ef72be98a651001f8628528c4f4ef4bfe405be94b6302054a05b42bd92fbe19b6c62a5fa0a7cd011496961a66f6647c134d9dab0f2d0b5f4513b9d8719be5c1879c9fbcc43b50256ef510b027a81063e50b7ae074065846227b6033436a3b405581f948b3a5648a9ea", 0x77}], 0x1, &(0x7f0000000c00)=[@cred={{0x1c, 0x1, 0x2, {0x0, 0xffffffffffffffff}}}, @cred={{0x1c, 0x1, 0x2, {0x0, 0xee01, 0xee01}}}, @cred={{0x1c, 0x1, 0x2, {0x0, 0xee01}}}, @rights={{0x18, 0x1, 0x1, [r3, r2]}}, @rights={{0x30, 0x1, 0x1, [r2, r1, r2, r3, r1, r2, r2, 0xffffffffffffffff]}}], 0xa8, 0x20024015}, {&(0x7f0000000cc0)=@file={0x1, './file0\x00'}, 0x6e, &(0x7f0000002240)=[{&(0x7f0000000d40)="e9dc5cfa1efed89189c7006f7e60c5634c2c4a12892066f0f9afd4ef613e0240fcbf0b9204eed33da90b41b0fa6d1ef68e2a96d0e35b0b6822fd66d7a34e", 0x3e}, {&(0x7f0000000d80)="3bc0f4f881404cd13e995d97395be15bbe5738749414dbacc46b45795d68b4b48bcc4517b938529a5cc1ccf16565d8a911b3379d0c7bb48d2d2c9b6dfa5dd40742b9c7dfb6b8e260058c0509099cf294d8f7fda9436dc242f3cfcb3f60880d3561d98d02f124d89bc9302ea338dd844d697424cfb82380b228f4b1b7055290eaf5da42e068617efac56726908888", 0x8e}, {&(0x7f0000000e40)="db5e810e687f921d5cd626c38b72bccc8b4e2565af40c929a349720634f624b9bde806f585ff80e7a3d9ae9e0f71f8afc09f2ac6e5a06d4c81bf85883949034c18b35bce8ecdccb33216259b", 0x4c}, {&(0x7f0000000ec0)="984ee948a61bace831c92d490575196e4cf22bbb4fdd2c8882dcde44d7eaf79f776e517f4bd25b7b57a9a5a541b50bc30c", 0x31}, {&(0x7f0000000f00)="ae6a119d5a6b660f2f598f79947b0190bb75d0e05e71d99e2fab779cdfe4f9ec66a6331a80f17b1a7dbf7ae01aa917468fa90f8306ec9308a37b7a5889699c57938688aad4b6b9f66274621908e204eec2a0faebaadfea2e5fed2fba602a464f6f9024bbb338e3cc691fdc938c3f3dfb9d1d5002fbaed56093a574b48af42e5af1487bdd4df124a9a0ed4f33c37a1d212047e81cd9a14a421e76fc17f4b47f1407b00589710f6b9008b6cb4c0b49c250b6237335340d531598fbae4bbdbd70b51161f0d659afd7564ace81cc00ac94b1eb0e7695ffaf", 0xd6}, {&(0x7f0000001000)="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", 0xfc}, {&(0x7f0000001100)="de0cf7cda75e2da2196aa194f2d6d6cb546f6642201a18c3b16da8a0983ad86d61a7528e4084ed6c5968e24ef035cb6fab7c740ada00a7203992cc33380748bf134684ecffd36115af7c0ba70bb4ef8456d8c43e09acefac3ea394a048e397", 0x5f}, {&(0x7f0000001180)="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0x1000}, {&(0x7f0000002180)="320fdf4300d4bc45f4380997ff8c57cfe2ead89d84e3986bd233939722a4872209a86b374832947491c3e09d4b582f60259cca67f8b6a5d59fdbe507bb0f657e1224ecc7b58399e2ff331100cfa24b91fd68d2fd8828c87ca5a7db14696f36", 0x5f}, {&(0x7f0000002200)="6621060b73e8ba8d6b9734ab2f926be814e6dddac61585ae32", 0x19}], 0xa, &(0x7f00000024c0)=[@rights={{0x1c, 0x1, 0x1, [0xffffffffffffffff, 0xffffffffffffffff, r0]}}, @cred={{0x1c}}, @cred={{0x1c, 0x1, 0x2, {0x0, 0xee01, 0xee00}}}, @rights={{0x2c, 0x1, 0x1, [0xffffffffffffffff, r4, r3, r5, r0, r2, r2]}}, @rights={{0x14, 0x1, 0x1, [r3]}}, @rights={{0x14, 0x1, 0x1, [r6]}}, @rights={{0x24, 0x1, 0x1, [r2, r7, r8, r0, r3]}}], 0xe8, 0x4}], 0x3, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000040), 0x0, 0x0, 0xfffffff9) [ 543.525474][T30697] nbd: couldn't find device at index -1577385984 01:16:38 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 543.604313][T30713] nbd: couldn't find device at index -1577385984 [ 543.657410][T30704] nbd: couldn't find device at index -1577385984 [ 543.698145][T30719] nbd: couldn't find device at index -1577385984 01:16:38 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x8a, 0x0, 0x0, 0x0, 0x0) 01:16:38 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f24, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:38 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x204, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) syz_mount_image$omfs(&(0x7f0000000040), &(0x7f0000000080)='./file0\x00', 0x3, 0x2, &(0x7f0000000240)=[{&(0x7f00000000c0)="611972119456215e7f87716a3037115f842e24f46728d2b6cb0eeb5e2d", 0x1d, 0x1540}, {&(0x7f0000000100)="aa9f8425a466f9b4c435e886b83dd3011b598175e89cb4584b3cb65cdf57568490fbb9fa4230f35d401b76c7ab0d9a0aa958bd2865ea67d511ecf2474e8660ff82017cfa49b9", 0x46, 0x10001}], 0x1000020, &(0x7f0000000280)={[{}], [{@fowner_lt={'fowner<', 0xee01}}, {@obj_role={'obj_role', 0x3d, '/'}}]}) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r3, 0x0) r4 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000340), 0xffffffffffffffff) sendmsg$MPTCP_PM_CMD_GET_ADDR(r0, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r4, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8}, @MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x3}, @MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x6}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20004051}, 0x20000000) ioctl$FITHAW(r1, 0xc0045878) preadv(r3, &(0x7f0000000280), 0x18, 0xd9f, 0x0) epoll_ctl$EPOLL_CTL_ADD(r3, 0x1, r2, &(0x7f00000002c0)={0x8}) 01:16:38 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x167000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:38 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000002", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 543.821022][T30731] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:38 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 543.986857][T30743] loop1: detected capacity change from 0 to 256 01:16:38 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x8b, 0x0, 0x0, 0x0, 0x0) [ 544.165299][T30739] nbd: couldn't find device at index -1577385984 01:16:38 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:38 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:38 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x168000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 544.214328][T30754] loop1: detected capacity change from 0 to 256 01:16:38 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) mmap(&(0x7f0000096000/0x3000)=nil, 0x3000, 0x4000004, 0x50, 0xffffffffffffffff, 0xae24000) r1 = syz_open_dev$vcsa(&(0x7f00000000c0), 0x1f, 0x101400) getresgid(&(0x7f0000000100), &(0x7f0000000140), &(0x7f0000000240)=0x0) connect$inet6(r0, &(0x7f00000005c0)={0xa, 0x4e21, 0x7, @private1={0xfc, 0x1, '\x00', 0x1}, 0x9}, 0x1c) mount$fuse(0x0, &(0x7f0000000040)='./file0\x00', &(0x7f0000000080), 0x21, &(0x7f0000000bc0)=ANY=[@ANYBLOB="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", @ANYRESHEX=r1, @ANYBLOB=',rootmode=00000000000000000140000,user_id=', @ANYBLOB="2da1c5c337b09e60a21bce2b644a01bcb2c6d6a25171a89e26355779318dbda0d96c52e9e0a306d36806fb5c7d70dbcb8daaa76560d8ba312146c947aabad97932395c0a134928b22c031b581c0b17185f9533010670a54d479266fb89bab5e5c15d7452501e637b159355dee1fbafb3707793beefde061e409d038ce21331f166af4c4bc326e0b88c13c4f26f6005b77b6f93af7675e79b45bf7918186b54c3247f40e353ac60340dabd87ec3ca5ce2916b5791efe6", @ANYBLOB=',group_id=', @ANYRESDEC=r2, @ANYBLOB="2c64656661756c745f7065726d697373696f6e732c64656661756c745f7065726d69b287696f6e732c6d615c5f726561643030303030303030303012382c7375626a5f747970653d405e2e292b002c00737a5a7cc01b164efe7a8dd9d566d88d83bc693741a0"]) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) kexec_load(0x8, 0x4, &(0x7f00000008c0)=[{&(0x7f0000000300)="9c20652a639a7d9f5911aaa8aae0da7acba3a631ded0ea0138d3e8f7f3032d70b5d9d5939a3bbfd3a2a8578c906f02b725cf75d181bb745053a6bf071fd8ef2d5df716346c7783b62e3982f01066", 0x4e, 0x3, 0x7}, {&(0x7f0000000380)="f789845821e7d1a27f27f5c0d60e8d2c6e5faecb7c48954af254b917a2657f43e3aaaf903faf0a4b4aa1f9cf1aaa14807a75d020cb4af3e2290cf6e814882f7dae5b43f33e8cb5bcd7c3f423d17d8b05d06f8bf719aaf7a2abde7d58b103ba290bd70dec455e74976cf1bc63a128d8763cb77b86e3ac", 0x76, 0x400, 0x3a}, {&(0x7f0000000400)="6b9b3e53369d9f4b4d44193e5952e9c3494bae01475bc570bac590fb5e854fbca93e1f625acb50285882c24a0d667b687b9b6aaa667ed94985b47a4874283b3e63828fe2ebd328a27b2fdd4e8a571dccd9e2b6adf8b1eea7b13f68b6b4edec94ab", 0x61, 0x8, 0x1}, {&(0x7f00000007c0)="add3fb5c7eb7cb4a1ac70dadc3e2928dfd89076406b526e3cfebfa04bb8c203328f1585bd11477ac17ff25c715ea4ca1ab7f704f1e1e11aad07d8d055ec6bd0a9cb10115c6c36c93cdb550538ce553828d52d719c0c0d819b1a4e245c88a300fe20775f6cbef9d7980f188d70362bc0ac25bd619d53b0463e1548dd42a7b163fd6001158a88f0f0c4df38784f01a24e27825143aba8aaee706c6c4936e1e7d66c7bdf399f18bd19a6f1616113b9539e2ffc747a6bf3604a57184234a64498b2bbdcec44233e86c2dbf0ce238ffc354fdfc02a2c87f2b7a5f8c136e15b32d548d7978963dcda212240aab3ec8cc09892048f6b3e908", 0xf5, 0x2c23, 0xffff}], 0x30000) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) syz_open_dev$audion(&(0x7f0000000480), 0x8, 0x309002) socket$netlink(0x10, 0x3, 0x7) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x18, 0x0, 0x0) lsetxattr$trusted_overlay_upper(&(0x7f0000000280)='./file0\x00', &(0x7f00000002c0), &(0x7f0000000600)={0x0, 0xfb, 0xca, 0x6, 0x9, "3c40e9a45e0db2ce49e7d9c3262a73c9", "4b24ca792d553ac29c596d05ab2e8901638fcd63cd971654503f3383faf971a2929f629745824166d19da8d7e3b4ecea632c33bcfe44eefd897e50e33b81fd4563fa30c1f487f12474b4cd151c3f3717a87ad9f9892fa9d990fc738e6147f8e12c5504cb6b4e99c516ac9fe8190583ef18dff431882964e45eb13f0c4c53fa99ee4480606c50bd94eb87e42cc236abb63aa7bf2586e8743a35357b11722ad51e80202dc4ad06ef11ef9ed1e641d4ef70a8d307c18a"}, 0xca, 0x2) r4 = syz_mount_image$msdos(&(0x7f0000000940), &(0x7f0000000980)='./file0\x00', 0x6, 0x2, &(0x7f0000000ac0)=[{&(0x7f00000009c0)="a86ae2dfd159cc15aebbe505f460082a1cf585cb86ee4c3fb23be59ab792a42d3cef720643ed867b52380156b16d7d12bb8af14223ba", 0x36, 0x6}, {&(0x7f0000000a00)="1ed6729eb85c6398713f4d7fa0c8d33e82ba943a295cc86e6ec46e40c897642fd11cb88dd71fae1f2d581cf9f6f2536e5ec0ef6640c162f3dab0051d0d3199719599b299f15f2d9db3bbdeeeda4cc2ebccd8aabafb804fad63948f92e8949c4066a86df7e0f19d61e1e223ca3627058e556338a91422b6ca545de923ad0b1175000c7883e64fbe6ae31adf72654a899495bf7d41d901d80cf549c2a9f68b0de647e37332bafc35b6988e25dd4de277ef9b4d46d4e477290541fa", 0xba, 0xde8}], 0x8000c, &(0x7f0000000b00)={[{@nodots}], [{@smackfsdef={'smackfsdef', 0x3d, 'trusted.overlay.upper\x00'}}, {@appraise}, {@fsuuid={'fsuuid', 0x3d, {[0x34, 0x30, 0x38, 0x65, 0x1, 0x33, 0x34, 0x36], 0x2d, [0x38, 0x35, 0x30, 0x62], 0x2d, [0x32, 0x61, 0x35, 0x62], 0x2d, [0x66, 0x34, 0x31, 0x39], 0x2d, [0x61, 0x66, 0x38, 0x62, 0x37, 0x30, 0x32, 0x35]}}}, {@smackfsfloor={'smackfsfloor', 0x3d, '/dev/vcsa#\x00'}}, {@appraise}]}) mkdirat(r4, &(0x7f0000000b80)='./file0\x00', 0x11) open(&(0x7f0000000580)='./file0\x00', 0x101000, 0x22) 01:16:38 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f25, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 544.377247][T30768] nbd: couldn't find device at index -1577385984 [ 544.459800][T30775] nbd: couldn't find device at index -1577385984 [ 544.505618][T30772] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:39 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x8c, 0x0, 0x0, 0x0, 0x0) [ 544.548549][T30779] loop1: detected capacity change from 0 to 13 01:16:39 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x169000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:39 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:39 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 544.709010][T30786] nbd: couldn't find device at index -1577385984 [ 544.738844][T30795] nbd: couldn't find device at index -1577385984 01:16:39 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r3, 0x0) preadv(r3, &(0x7f0000000280), 0x18, 0xd9f, 0x0) sendmmsg(r1, &(0x7f0000000c00)=[{{&(0x7f0000000040)=@rxrpc=@in4={0x21, 0x4, 0x2, 0x10, {0x2, 0x4e22, @dev={0xac, 0x14, 0x14, 0xb}}}, 0x80, &(0x7f00000000c0), 0x0, &(0x7f0000000240)=[{0xf8, 0x17b, 0x2, "b5478a8892ec9da6025ae8198a276bb5cd7b907244a0f21dad40df98cf048acc98149d25c883e1169d5122e1c464f8a1c6d26f4b685ddffc5304597c7e04eeba5064762a2c2c307fec45112c94d2a180a059d08bbd825b0347fb4dad0dab8f343734dc322ff8ba2d03debb93c4d40df0f4f288f10d5dc7bcbae3c0c6c9406017a0d5c54e623464afbdb1f37b4f41d918a1d8533173aa13490eadcb9d03ede194b956448ecd52a2ec1ac0d06c3c10e3e0a28f57f7cb89d0f30b08cf44fa868b3167cb202e21178a5aced02b31981643a0040952ba51c2345cc2817c16dd6c36c5efbf70"}], 0xf8}}, {{&(0x7f0000000100)=@pppol2tpin6={0x18, 0x1, {0x0, r3, 0x3, 0x0, 0x3, 0x3, {0xa, 0x4e20, 0x3f, @initdev={0xfe, 0x88, '\x00', 0x1, 0x0}, 0xfffffe00}}}, 0x80, &(0x7f0000000940)=[{&(0x7f0000000340)="0b9704c84a8d688d8f91c2fd51314c838d4a89b8e07018a983b519446f4ebc9861d5480e8a11b270b665714f8bc69a70106d18ca95aed202a0f6e6d86d6f6b596e3b0b3226c886f1386c373352818eab2d18749429fdc868503c3440ab0cd830fe6da6b5fc660cb88118b78578df65ad53c18901dca5dccf5ab76a5ac10c0afcdc07858ffc642a39cfd9977e96207405ffe52786e194168c27c9d0aa85ae0ec4fd39b266b1a1a6e6708ed2fb7d32f7773057634b4b4a", 0xb6}, {&(0x7f0000000400)="d393d4a997f9fc3d5a61b19dc2f3a67269df0dab460734deda6c83322a910b416118761f24e2d69fe7ed62bdfc414befd905685cb3f37cf15070c492d2ee189a607082c7bf9f6e94e610dc28f862fed9354eb84c3987acfb551bc403f25d74aea1d7ac2317b7ea582fc463b2e887180754cd7b47f9db883bd987ffba0e68e8a7a144c56bb63902bdd841d9a5a202cd6618e703498a5200d8", 0x98}, {&(0x7f00000004c0)="aa56fc1055bd8b0fe878cd0862f635ffa3b87c582e51e9533373c37507df2774c261c7b7fb7ec52a16259bd19233f4f021b5827d41a984798e5ced0df7426bc5e79ba6ebade42a1c1e9cd6cc748c53f7ce88b036975301c19838133805f25f70a1473af152f7bf1e335a00420bc805e26c606a9e165f9f7fb8d5f75731316827f4ed57a4d923180649856772652685", 0x8f}, {&(0x7f0000000580)="35f3abb0daa7232fec29dd964ca1fa748777017c890e3baa982eecc80f4f6bfaaaacfd070319af1e3a4d8e560df17f6aaa054fa6595a90fb02fcb55abeadf4f2c5a872b131166c57794ec1b7ea49aba65f027a3bbc78cce5f63faa3a6013b2fe97cd0365219c8ccc326cc50cede3f958d8d8249c522dcecf405e98dc73551d13e38ca118bbdd4034fc5b52ecaf1670bb61000d489558a1f00b254b4fedb18675d17e1c6dcd", 0xa5}, {&(0x7f0000000640)="95ac3faafd8a9ef3b823732881f1e8fab65b480374928d6d8dde57e4177c9ead4703e5e8207cf596f00072cb93acce706812a5aca85cd6aeffbc0a0a7d37fd9807540494cae1884930c55580ba608bc3d1d45eb7c1648c1f26277d70a1af26bd8a67588cad677868325cbc7b5a5f5631f3ea6290fdfd42a15bf706d47706413221c8864f145b99c04f438091dbadb1a81b77a7ef07abb373111c6f2fb304a19730e0d722def1d885fe07098a28503b4f2d", 0xb1}, {&(0x7f00000007c0)="1aa846ecf24fdc7fa4182cc062e7901afff2e5a016312d74e8e85c2c3bc653d6e815dc5b57b20e73559f66567b3bb4b4a177487b87922e78c4def4f81f558b175061fef7d36854dbc3dc517c7947fed24fa7c0ee5e7920613239072ab453848084a32da1c01e3c5a2bca7b3bfa8f0754921ee88a7de29ce3f3fff56cb6aafa1ae8c33472ef1f525b1ec72092e670f1cc206bbe9d65fb3acf34945d996a9a87f985eb970bc6726edafa49bd78d0c8", 0xae}, {&(0x7f0000000700)="a900320bd30ba78dc04cfc8afff3ab847bf0299ec9b0bd3cf2976a6af8dcc2009e447d93adefc5f2ab6141752d908b3281bb045e65a21f109482a9ff4da90f17fc980b17eb3f8836fc8a090995065c062f960d78a9b7e3324b7f28780baf8150141dcd63f3cb658ddfc2c4ee4eb09f696bed904d1338318d97079779", 0x7c}, {&(0x7f0000000880)="c768808661a65867cee59a685331967261956a0e23fa435f8f31366e46e00c7660fb085dfa4da4105490c248bc23815fe601a557bb61df41fdbf0639977a5f71637dfb0579e5bb8e87fa9abc99936c7baaaf31cc161ffa57c03334f1c70997aa31", 0x61}, {&(0x7f0000000900)}], 0x9, &(0x7f0000000a00)=[{0x90, 0x0, 0x7, "a6e0901c816807202545f246a944848324df4f2e3a9aefcbe24374d418cc8a5c0a168d1162b723242b6e94006fe714287912e02a109544690b63007c0fa4851fd64c44399db86dfcf043699579c15b6dbacaecc9b4e65d809c58547d5e046b74a31bbe32955ce1375cba14706122b4c37f97c86a34241243897d7312db9c"}, {0x80, 0x29, 0x0, "ce12e38c759ec4fb032b3cd3cda414df3f40220e20b8240c7bdb91a3d0d60b6c707cca492a5474643a1a68152d846bb0cb8064877c8f261ea7e8faacd6cc48298050252f4d3e8052cba2bc88e9d5c7295aeb4100ea5048873fd953b88859102eee5016f84e470df2f22ab95e"}, {0x30, 0x88, 0x9, "e80b2f5052fec6d82ac4063c3173b6040f873f943f093ce29b41274ffa46ca29"}, {0x50, 0x115, 0xffffffd6, "03dc6c5ea94494946fad46ab221998243efb8ad0d85deb01007c6cb30b8a9d4a706ddcc5f0dd74b240736cec015989ae031d72474605c5915e388ee0a63d"}, {0x50, 0x10a, 0x10000, "3de9a283594513640da62fb3a836921af16104dbf3e76cef9d9d4bc4114826b42eb9eece1087101d01d145b60789a176edb5a962e83f6fb830d020a486f2"}], 0x1e0}}], 0x2, 0x4000) setsockopt$inet6_group_source_req(0xffffffffffffffff, 0x29, 0x2b, &(0x7f0000000c80)={0x503d, {{0xa, 0x4e21, 0x1, @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01', 0x6}}, {{0xa, 0x4e24, 0xfff, @remote, 0x4}}}, 0x108) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:39 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f26, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 544.854282][T30808] nbd: couldn't find device at index -1577385984 01:16:39 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x8d, 0x0, 0x0, 0x0, 0x0) 01:16:39 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x16a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 544.952709][T30815] nbd: couldn't find device at index -1577385984 01:16:39 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:39 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:39 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x16b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:39 executing program 1: r0 = perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x3, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, @perf_bp={0x0}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9}, 0x0, 0xf, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_RESET(r0, 0x2403, 0x800) r1 = open(0x0, 0x200100, 0x0) unlinkat(r1, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) ioctl$SNAPSHOT_FREE(r2, 0x3305) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) r3 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000040), 0x802, 0x0) mmap(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x0, 0x12, r3, 0x3bbf4000) r4 = getpgid(0x0) perf_event_open(&(0x7f0000000080)={0x3, 0x80, 0x1, 0xda, 0x9d, 0x2, 0x0, 0x6, 0x4, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x7ff, 0x1, @perf_config_ext={0xff, 0x1000}, 0x88, 0x68, 0x80000001, 0x0, 0x9, 0x683f, 0x80, 0x0, 0x20}, r4, 0xffffffffffffffff, r1, 0x3) 01:16:39 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x8e, 0x0, 0x0, 0x0, 0x0) [ 545.255471][T30831] nbd: couldn't find device at index -1577385984 [ 545.276685][T30838] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 545.413720][T30846] nbd: couldn't find device at index -1577385984 01:16:40 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x0) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='./file0\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 545.464373][T30842] nbd: couldn't find device at index -1577385984 01:16:40 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:40 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:40 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x16c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:40 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f27, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:40 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x8f, 0x0, 0x0, 0x0, 0x0) [ 545.717449][T30869] nbd: couldn't find device at index -1577385984 01:16:40 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x16d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:40 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:40 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:40 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x169000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:40 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x90, 0x0, 0x0, 0x0, 0x0) [ 545.997206][T30880] nbd: couldn't find device at index -1577385984 [ 546.036964][T30893] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:40 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x169000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 546.106875][T30898] nbd: couldn't find device at index -1577385984 [ 546.165173][T30880] nbd: couldn't find device at index -1577385984 01:16:40 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x16e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:40 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:40 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x91, 0x0, 0x0, 0x0, 0x0) 01:16:40 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f28, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:40 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:41 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x16f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:41 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f24, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 546.436580][T30920] nbd: couldn't find device at index -1577385984 01:16:41 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x92, 0x0, 0x0, 0x0, 0x0) [ 546.507404][T30926] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 546.578494][T30930] nbd: couldn't find device at index -1577385984 01:16:41 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 546.639488][T30924] nbd: couldn't find device at index -1577385984 01:16:41 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f29, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:41 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:41 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x170000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 546.891975][T30937] nbd: couldn't find device at index -1577385984 01:16:41 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x93, 0x0, 0x0, 0x0, 0x0) 01:16:41 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f24, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 547.061520][T30961] nbd: couldn't find device at index -1577385984 01:16:41 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 547.115868][T30964] nbd: couldn't find device at index -1577385984 01:16:41 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x171000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 547.160657][T30967] nbd: couldn't find device at index -1577385984 01:16:41 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x94, 0x0, 0x0, 0x0, 0x0) 01:16:41 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:41 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 547.373435][T30981] nbd: couldn't find device at index -1577385984 01:16:42 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 547.459340][T30997] nbd: couldn't find device at index -1577385984 01:16:42 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x204, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) r0 = open(0x0, 0x200100, 0x0) syz_mount_image$omfs(&(0x7f0000000040), &(0x7f0000000080)='./file0\x00', 0x3, 0x2, &(0x7f0000000240)=[{&(0x7f00000000c0)="611972119456215e7f87716a3037115f842e24f46728d2b6cb0eeb5e2d", 0x1d, 0x1540}, {&(0x7f0000000100)="aa9f8425a466f9b4c435e886b83dd3011b598175e89cb4584b3cb65cdf57568490fbb9fa4230f35d401b76c7ab0d9a0aa958bd2865ea67d511ecf2474e8660ff82017cfa49b9", 0x46, 0x10001}], 0x1000020, &(0x7f0000000280)={[{}], [{@fowner_lt={'fowner<', 0xee01}}, {@obj_role={'obj_role', 0x3d, '/'}}]}) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) r1 = socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x101832, 0x1, &(0x7f0000000780)=[{0x0, 0x0, 0x0, 0x3e0000}], 0x0) r2 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x10, r2, 0x0) preadv(r2, &(0x7f0000000280), 0x18, 0x0, 0x0) r3 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r3, 0x0) r4 = syz_genetlink_get_family_id$mptcp(&(0x7f0000000340), 0xffffffffffffffff) sendmsg$MPTCP_PM_CMD_GET_ADDR(r0, &(0x7f0000000400)={&(0x7f0000000300)={0x10, 0x0, 0x0, 0x200}, 0xc, &(0x7f00000003c0)={&(0x7f0000000380)={0x2c, r4, 0x100, 0x70bd26, 0x25dfdbfc, {}, [@MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8}, @MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x3}, @MPTCP_PM_ATTR_RCV_ADD_ADDRS={0x8, 0x2, 0x6}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20004051}, 0x20000000) ioctl$FITHAW(r1, 0xc0045878) preadv(r3, &(0x7f0000000280), 0x18, 0xd9f, 0x0) epoll_ctl$EPOLL_CTL_ADD(r3, 0x1, r2, &(0x7f00000002c0)={0x8}) 01:16:42 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x95, 0x0, 0x0, 0x0, 0x0) [ 547.654897][T30995] nbd: couldn't find device at index -1577385984 [ 547.671397][T31003] nbd: couldn't find device at index -1577385984 01:16:42 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x172000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 547.713371][T31017] loop1: detected capacity change from 0 to 256 [ 547.720546][T31001] nbd: couldn't find device at index -1577385984 01:16:42 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:42 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000002", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:42 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2b, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:42 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x173000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:42 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x96, 0x0, 0x0, 0x0, 0x0) [ 547.988208][T31033] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:42 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:42 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:42 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 548.256774][T31037] nbd: couldn't find device at index -1577385984 01:16:42 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x97, 0x0, 0x0, 0x0, 0x0) [ 548.396969][T31056] nbd: couldn't find device at index -1577385984 01:16:43 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x174000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 548.438563][T31044] nbd: couldn't find device at index -1577385984 01:16:43 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:43 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:43 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f23, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:43 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2c, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:43 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x98, 0x0, 0x0, 0x0, 0x0) [ 548.659858][T31075] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:43 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c01e86d", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:43 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x99, 0x0, 0x0, 0x0, 0x0) 01:16:43 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x175000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 548.908398][T31082] nbd: couldn't find device at index -1577385984 01:16:43 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:43 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f22, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 548.959393][T31085] nbd: couldn't find device at index -1577385984 01:16:43 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x9a, 0x0, 0x0, 0x0, 0x0) 01:16:43 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2d, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:43 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 549.140628][T31107] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:43 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x176000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:43 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:43 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000003", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:43 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f20, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:44 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x9b, 0x0, 0x0, 0x0, 0x0) [ 549.489086][T31115] nbd: couldn't find device at index -1577385984 01:16:44 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000003", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 549.556151][T31121] nbd: couldn't find device at index -1577385984 01:16:44 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:44 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:44 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x177000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 549.729908][T31132] nbd: couldn't find device at index -1577385984 [ 549.802991][T31149] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:44 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x9c, 0x0, 0x0, 0x0, 0x0) 01:16:44 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:44 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 550.064805][T31154] nbd: couldn't find device at index -1577385984 01:16:44 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:44 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x178000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:44 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x9d, 0x0, 0x0, 0x0, 0x0) [ 550.233946][T31168] nbd: couldn't find device at index -1577385984 [ 550.255642][T31159] nbd: couldn't find device at index -1577385984 01:16:44 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c001fff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 550.330881][T31178] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:44 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:44 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:45 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x9e, 0x0, 0x0, 0x0, 0x0) 01:16:45 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:45 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00f0ff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 550.510936][T31194] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 01:16:45 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x179000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:45 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:45 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x9f, 0x0, 0x0, 0x0, 0x0) [ 550.731346][T31197] nbd: couldn't find device at index -1577385984 [ 550.803519][T31208] nbd: couldn't find device at index -1577385984 01:16:45 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00ffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:45 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:45 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa0, 0x0, 0x0, 0x0, 0x0) 01:16:45 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f30, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:45 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x17a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 551.032398][T31214] nbd: couldn't find device at index -1577385984 [ 551.074207][T31229] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:45 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:45 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c7fffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 551.339192][T31236] nbd: couldn't find device at index -1577385984 01:16:45 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa1, 0x0, 0x0, 0x0, 0x0) 01:16:45 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 551.473737][T31246] nbd: couldn't find device at index -1577385984 [ 551.495608][T31240] nbd: couldn't find device at index -1577385984 01:16:46 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x17b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:46 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f31, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 551.537014][T31259] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:46 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c9effff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:46 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa2, 0x0, 0x0, 0x0, 0x0) 01:16:46 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f2f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:46 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:46 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa3, 0x0, 0x0, 0x0, 0x0) 01:16:46 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x17c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 551.948391][T31266] nbd: couldn't find device at index -1577385984 01:16:46 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cf0ffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:46 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:46 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 552.055824][T31266] nbd: couldn't find device at index -1577385984 01:16:46 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f32, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:46 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cfeffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:46 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa4, 0x0, 0x0, 0x0, 0x0) [ 552.227320][T31301] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:47 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x17d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 552.468142][T31302] nbd: couldn't find device at index -1577385984 01:16:47 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:47 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 552.553384][T31310] nbd: couldn't find device at index -1577385984 01:16:47 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa5, 0x0, 0x0, 0x0, 0x0) 01:16:47 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:47 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f33, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 552.695483][T31327] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:47 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x17e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:47 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa6, 0x0, 0x0, 0x0, 0x0) [ 552.920777][T31331] nbd: couldn't find device at index -1577385984 01:16:47 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 552.976103][T31339] nbd: couldn't find device at index -1577385984 [ 552.998173][T31345] nbd: couldn't find device at index -1577385984 01:16:47 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f31, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:47 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:47 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f34, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 553.225465][T31360] nbd: couldn't find device at index -1577385984 01:16:47 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa7, 0x0, 0x0, 0x0, 0x0) [ 553.302519][T31369] nbd: couldn't find device at index -1577385984 01:16:47 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x17f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:48 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa8, 0x0, 0x0, 0x0, 0x0) 01:16:48 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xa9, 0x0, 0x0, 0x0, 0x0) [ 553.466471][T31361] nbd: couldn't find device at index -1577385984 [ 553.484078][T31363] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:48 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f31, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:48 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 553.631531][T31370] nbd: couldn't find device at index -1577385984 01:16:48 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xaa, 0x0, 0x0, 0x0, 0x0) 01:16:48 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x180000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:48 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:48 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f35, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 553.800524][T31400] nbd: couldn't find device at index -1577385984 01:16:48 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xab, 0x0, 0x0, 0x0, 0x0) [ 554.002426][T31401] nbd: couldn't find device at index -1577385984 [ 554.057980][T31403] nbd: couldn't find device at index -1577385984 01:16:48 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x17f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:48 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 554.146016][T31419] nbd: couldn't find device at index -1577385984 01:16:48 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:48 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x181000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:48 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f36, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:48 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xac, 0x0, 0x0, 0x0, 0x0) [ 554.337100][T31437] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:49 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x182000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:49 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xad, 0x0, 0x0, 0x0, 0x0) 01:16:49 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 554.598921][T31445] nbd: couldn't find device at index -1577385984 [ 554.623930][T31437] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:49 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:49 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 554.683473][T31452] nbd: couldn't find device at index -1577385984 01:16:49 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xae, 0x0, 0x0, 0x0, 0x0) 01:16:49 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f37, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:49 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x183000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 554.975855][T31465] nbd: couldn't find device at index -1577385984 [ 555.034188][T31478] nbd: couldn't find device at index -1577385984 01:16:49 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:49 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xaf, 0x0, 0x0, 0x0, 0x0) 01:16:49 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f1a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:49 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 555.222320][T31479] nbd: couldn't find device at index -1577385984 01:16:49 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f38, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:49 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x184000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 555.373257][T31500] nbd: couldn't find device at index -1577385984 01:16:50 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb0, 0x0, 0x0, 0x0, 0x0) 01:16:50 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 555.533335][T31502] nbd: couldn't find device at index -1577385984 [ 555.559489][T31506] nbd: couldn't find device at index -1577385984 01:16:50 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:50 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f19, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:50 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb1, 0x0, 0x0, 0x0, 0x0) 01:16:50 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x185000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 555.828250][T31520] nbd: couldn't find device at index -1577385984 [ 555.877198][T31535] nbd: couldn't find device at index -1577385984 01:16:50 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb2, 0x0, 0x0, 0x0, 0x0) 01:16:50 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 555.918685][T31529] nbd: couldn't find device at index -1577385984 [ 556.000772][T31543] nbd: couldn't find device at index -1577385984 01:16:50 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f39, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:50 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:50 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f38, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 556.192770][T31556] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:16:50 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x186000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 556.287997][T31564] nbd: couldn't find device at index -1577385984 01:16:50 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb3, 0x0, 0x0, 0x0, 0x0) 01:16:50 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00f0ff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 556.509643][T31561] nbd: couldn't find device at index -1577385984 01:16:51 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb4, 0x0, 0x0, 0x0, 0x0) 01:16:51 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f38, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:51 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x187000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 556.707606][T31565] nbd: couldn't find device at index -1577385984 [ 556.744844][T31570] nbd: couldn't find device at index -1577385984 [ 556.792464][T31572] nbd: couldn't find device at index -1577385984 01:16:51 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:51 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000200", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:51 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f3a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 556.971642][T31591] nbd: couldn't find device at index -1577385984 01:16:51 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb5, 0x0, 0x0, 0x0, 0x0) 01:16:51 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f39, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:51 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x188000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:51 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000300", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 557.197239][T31613] nbd: couldn't find device at index -1577385984 [ 557.385729][T31619] nbd: couldn't find device at index -1577385984 [ 557.419985][T31617] nbd: couldn't find device at index -1577385984 01:16:52 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x189000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:52 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:52 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb6, 0x0, 0x0, 0x0, 0x0) [ 557.591131][T31629] nbd: couldn't find device at index -1577385984 [ 557.637284][T31619] nbd: couldn't find device at index -1577385984 01:16:52 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000400", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 557.678348][T31648] nbd: couldn't find device at index -1577385984 01:16:52 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f17, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:52 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f3b, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:52 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x18a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 557.794971][T31658] nbd: couldn't find device at index -1577385984 01:16:52 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:52 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb7, 0x0, 0x0, 0x0, 0x0) 01:16:52 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000500", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 558.121042][T31663] nbd: couldn't find device at index -1577385984 [ 558.177302][T31680] nbd: couldn't find device at index -1577385984 01:16:52 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f16, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 558.249479][T31684] nbd: couldn't find device at index -1577385984 01:16:52 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb8, 0x0, 0x0, 0x0, 0x0) 01:16:52 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000600", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:52 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x18b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:52 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f3c, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:52 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 558.629910][T31696] nbd: couldn't find device at index -1577385984 01:16:53 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xb9, 0x0, 0x0, 0x0, 0x0) [ 558.713398][T31715] nbd: couldn't find device at index -1577385984 01:16:53 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f15, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:53 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\a\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:53 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x18c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 558.771347][T31704] nbd: couldn't find device at index -1577385984 01:16:53 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:53 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f3d, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:53 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xba, 0x0, 0x0, 0x0, 0x0) [ 559.132328][T31727] nbd: couldn't find device at index -1577385984 01:16:53 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x18d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:53 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f14, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:53 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbb, 0x0, 0x0, 0x0, 0x0) [ 559.317546][T31742] nbd: couldn't find device at index -1577385984 [ 559.363687][T31739] nbd: couldn't find device at index -1577385984 01:16:54 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\t\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 559.443986][T31749] nbd: couldn't find device at index -1577385984 01:16:54 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:54 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f3e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:54 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbc, 0x0, 0x0, 0x0, 0x0) 01:16:54 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x18e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 559.650894][T31755] nbd: couldn't find device at index -1577385984 01:16:54 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f14, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:54 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbd, 0x0, 0x0, 0x0, 0x0) [ 559.850048][T31772] nbd: couldn't find device at index -1577385984 01:16:54 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\n\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 559.926674][T31774] nbd: couldn't find device at index -1577385984 [ 559.947878][T31781] nbd: couldn't find device at index -1577385984 01:16:54 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f3f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:54 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:54 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x18f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 560.191758][T31794] nbd: couldn't find device at index -1577385984 01:16:54 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f13, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:54 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000f00", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 560.298599][T31809] nbd: couldn't find device at index -1577385984 01:16:54 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbe, 0x0, 0x0, 0x0, 0x0) [ 560.434099][T31807] nbd: couldn't find device at index -1577385984 [ 560.465150][T31815] nbd: couldn't find device at index -1577385984 01:16:55 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x190000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:55 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:55 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00H\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:55 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f40, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:55 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f3f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:55 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x0) [ 560.763524][T31842] nbd: couldn't find device at index -1577385984 01:16:55 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00L\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:55 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x191000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:55 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x7, 0x0, 0x0, 0x0) [ 560.935183][T31844] nbd: couldn't find device at index -1577385984 [ 560.966644][T31858] nbd: couldn't find device at index -1577385984 [ 561.018423][T31857] nbd: couldn't find device at index -1577385984 01:16:55 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:55 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:55 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f41, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:55 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00`\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 561.281291][T31877] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. 01:16:55 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x192000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:55 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x8, 0x0, 0x0, 0x0) 01:16:55 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f40, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:56 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x700, 0x0, 0x0, 0x0) [ 561.496788][T31884] nbd: couldn't find device at index -1577385984 [ 561.542339][T31886] nbd: couldn't find device at index -1577385984 [ 561.611080][T31884] nbd: couldn't find device at index -1577385984 01:16:56 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00h\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:56 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:56 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x2000, 0x0, 0x0, 0x0) 01:16:56 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f42, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:56 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f41, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:56 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x193000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 561.877832][T31913] nbd: couldn't find device at index -1577385984 [ 561.921692][T31921] nbd: couldn't find device at index -1577385984 01:16:56 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 562.078280][ T3241] ieee802154 phy0 wpan0: encryption failed: -22 [ 562.084754][ T3241] ieee802154 phy1 wpan1: encryption failed: -22 01:16:56 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00l\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 562.193116][T31923] nbd: couldn't find device at index -1577385984 01:16:56 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x4000, 0x0, 0x0, 0x0) 01:16:56 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f43, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 562.236537][T31931] nbd: couldn't find device at index -1577385984 01:16:56 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f12, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:56 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x194000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 562.329681][T31940] nbd: couldn't find device at index -1577385984 01:16:56 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00t\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 562.391430][T31948] nbd: couldn't find device at index -1577385984 01:16:57 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:57 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x400000, 0x0, 0x0, 0x0) [ 562.635128][T31954] nbd: couldn't find device at index -1577385984 01:16:57 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x195000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 562.698661][T31971] nbd: couldn't find device at index -1577385984 01:16:57 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00z\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:57 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f11, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 562.764996][T31954] nbd: couldn't find device at index -1577385984 [ 562.813382][T31978] nbd: couldn't find device at index -1577385984 01:16:57 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x800000, 0x0, 0x0, 0x0) 01:16:57 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f44, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:57 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:16:57 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00f000", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:57 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x196000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 563.117218][T31988] nbd: couldn't find device at index -1577385984 [ 563.143118][T32003] nbd: couldn't find device at index -1577385984 [ 563.203223][T32009] nbd: couldn't find device at index -1577385984 01:16:57 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x1000000, 0x0, 0x0, 0x0) 01:16:57 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x20000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:57 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 563.283407][T32013] nbd: couldn't find device at index -1577385984 01:16:57 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000003", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:58 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f45, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 563.548018][T32028] nbd: couldn't find device at index -1577385984 [ 563.601302][T32035] nbd: couldn't find device at index -1577385984 01:16:58 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x197000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:58 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000005", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:58 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x196000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:58 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x7000000, 0x0, 0x0, 0x0) 01:16:58 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 563.756016][T32037] nbd: couldn't find device at index -1577385984 [ 563.805453][T32045] nbd: couldn't find device at index -1577385984 01:16:58 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000006", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:58 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f46, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:58 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x196000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:58 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x8000000, 0x0, 0x0, 0x0) [ 564.113248][T32061] nbd: couldn't find device at index -1577385984 01:16:58 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x198000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:58 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x196000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:58 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x20000000, 0x0, 0x0, 0x0) [ 564.291630][T32071] nbd: couldn't find device at index -1577385984 01:16:58 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\a', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 564.338118][T32063] nbd: couldn't find device at index -1577385984 01:16:59 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xec03, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:59 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 564.427780][T32080] nbd: couldn't find device at index -1577385984 01:16:59 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x7, 0x0, 0x0) 01:16:59 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x199000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:59 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f47, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:59 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\t', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 564.827508][T32105] nbd: couldn't find device at index -1577385984 01:16:59 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x8, 0x0, 0x0) [ 564.881956][T32113] nbd: couldn't find device at index -1577385984 01:16:59 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x19a000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:16:59 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xc803, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:59 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c008409", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:59 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 564.999215][T32111] nbd: couldn't find device at index -1577385984 01:16:59 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f48, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:16:59 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\n', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:16:59 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x700, 0x0, 0x0) [ 565.223538][T32144] nbd: couldn't find device at index -1577385984 01:16:59 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x19b000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 565.395273][T32137] nbd: couldn't find device at index -1577385984 01:17:00 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x2000, 0x0, 0x0) [ 565.456194][T32149] nbd: couldn't find device at index -1577385984 01:17:00 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 565.571637][T32153] nbd: couldn't find device at index -1577385984 01:17:00 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00000f", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:00 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:00 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x19c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:00 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f49, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:00 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x4000, 0x0, 0x0) 01:17:00 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x400000, 0x0, 0x0) 01:17:00 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00570f", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 565.921257][T32179] nbd: couldn't find device at index -1577385984 [ 565.991717][T32194] nbd: couldn't find device at index -1577385984 [ 566.029904][T32196] nbd: couldn't find device at index -1577385984 01:17:00 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xb003, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:00 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:00 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x19d000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:00 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x800000, 0x0, 0x0) 01:17:00 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:00 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00001f", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:00 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x1000000, 0x0, 0x0) [ 566.399116][T32213] nbd: couldn't find device at index -1577385984 01:17:01 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x19e000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 566.445753][T32215] nbd: couldn't find device at index -1577385984 01:17:01 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00 ', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:01 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xb003, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 566.631193][T32229] nbd: couldn't find device at index -1577385984 [ 566.669696][T32224] nbd: couldn't find device at index -1577385984 01:17:01 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x7000000, 0x0, 0x0) [ 566.736754][T32243] nbd: couldn't find device at index -1577385984 01:17:01 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:01 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x19f000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:01 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00?', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:01 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4b, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 566.930386][T32253] nbd: couldn't find device at index -1577385984 01:17:01 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x8000000, 0x0, 0x0) [ 567.032006][T32270] nbd: couldn't find device at index -1577385984 01:17:01 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 567.130663][T32278] nbd: couldn't find device at index -1577385984 01:17:01 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:01 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00H', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 567.299142][T32277] nbd: couldn't find device at index -1577385984 01:17:01 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x20000000, 0x0, 0x0) 01:17:01 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a0000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:01 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4c, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 567.450011][T32289] nbd: couldn't find device at index -1577385984 [ 567.496583][T32304] nbd: couldn't find device at index -1577385984 01:17:02 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xb000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:02 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:02 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00L', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:02 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x40000000000000, 0x0, 0x0) [ 567.740915][T32311] nbd: couldn't find device at index -1577385984 01:17:02 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a1000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 567.800687][T32315] nbd: couldn't find device at index -1577385984 [ 567.837926][T32327] nbd: couldn't find device at index -1577385984 01:17:02 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x80000000000000, 0x0, 0x0) 01:17:02 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0xa000, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:02 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4d, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:02 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:02 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000f57", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 568.137944][T32352] nbd: couldn't find device at index -1577385984 01:17:02 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a2000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:02 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x8002, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:02 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x100000000000000, 0x0, 0x0) [ 568.303312][T32350] nbd: couldn't find device at index -1577385984 [ 568.318907][T32357] nbd: couldn't find device at index -1577385984 [ 568.389090][T32365] nbd: couldn't find device at index -1577385984 01:17:03 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:03 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00`', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:03 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4e, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:03 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x700000000000000, 0x0, 0x0) 01:17:03 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a3000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 568.804574][T32380] nbd: couldn't find device at index -1577385984 01:17:03 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00h', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:03 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x800000000000000, 0x0, 0x0) 01:17:03 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x8002, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 568.970512][T32392] nbd: couldn't find device at index -1577385984 [ 569.015680][T32393] nbd: couldn't find device at index -1577385984 01:17:03 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 569.079034][T32395] nbd: couldn't find device at index -1577385984 01:17:03 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00l', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:03 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a4000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:03 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:03 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x2000000000000000, 0x0, 0x0) [ 569.364058][T32422] nbd: couldn't find device at index -1577385984 01:17:04 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x7400, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 569.429534][T32427] nbd: couldn't find device at index -1577385984 01:17:04 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00t', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:04 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:04 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a5000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:04 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x8000000000000000, 0x0, 0x0) [ 569.646894][T32433] nbd: couldn't find device at index -1577385984 01:17:04 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0xffffffff00000000, 0x0, 0x0) [ 569.768343][T32433] nbd: couldn't find device at index -1577385984 01:17:04 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x6c00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:04 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00z', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:04 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f50, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 570.018110][T32456] nbd: couldn't find device at index -1577385984 [ 570.090950][T32465] nbd: couldn't find device at index -1577385984 01:17:04 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a6000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:04 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x7) [ 570.186472][T32473] nbd: couldn't find device at index -1577385984 01:17:04 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:04 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000984", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:04 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x6c00, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 570.354290][T32475] nbd: couldn't find device at index -1577385984 01:17:05 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x8) [ 570.449020][T32497] nbd: couldn't find device at index -1577385984 01:17:05 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a7000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 570.509966][T32482] nbd: couldn't find device at index -1577385984 [ 570.555929][T32504] nbd: couldn't find device at index -1577385984 01:17:05 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c0000f0", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:05 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f51, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:05 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:05 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x700) 01:17:05 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f50, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:05 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a8000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:05 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:05 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x2000) [ 570.997295][T32529] nbd: couldn't find device at index -1577385984 [ 571.034357][T32540] nbd: couldn't find device at index -1577385984 01:17:05 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 571.099869][T32537] nbd: couldn't find device at index -1577385984 01:17:05 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 571.150220][T32549] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:17:05 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1a9000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:05 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00@', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:05 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f52, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:05 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x4000) [ 571.433787][T32556] nbd: couldn't find device at index -1577385984 [ 571.457949][T32570] nbd: couldn't find device at index -1577385984 01:17:06 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000003", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:06 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f4f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:06 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00f0ff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:06 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1aa000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 571.641257][T32571] nbd: couldn't find device at index -1577385984 01:17:06 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x400000) [ 571.722516][T32582] nbd: couldn't find device at index -1577385984 01:17:06 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00ffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:06 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f53, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 571.930638][T32587] nbd: couldn't find device at index -1577385984 01:17:06 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f52, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:06 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2cffffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:06 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x800000) 01:17:06 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1ab000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 572.276888][T32610] nbd: couldn't find device at index -1577385984 01:17:06 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x1000000) 01:17:06 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00ffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 572.460974][T32618] nbd: couldn't find device at index -1577385984 01:17:07 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x7000000) [ 572.509606][T32620] nbd: couldn't find device at index -1577385984 01:17:07 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000200", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:07 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f51, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:07 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f54, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:07 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c00ffff", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:07 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1ac000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:07 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x8000000) 01:17:07 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000300", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 572.972784][T32650] nbd: couldn't find device at index -1577385984 01:17:07 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x6800, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 573.035576][T32656] nbd: couldn't find device at index -1577385984 01:17:07 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:07 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000400", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:07 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x20000000) 01:17:07 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f55, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:07 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1ad000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:07 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000500", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:07 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x40000000000000) [ 573.423114][T32677] nbd: couldn't find device at index -1577385984 [ 573.489613][T32685] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:17:08 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB="2c000600", @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:08 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:08 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x80000000000000) [ 573.624980][T32687] nbd: couldn't find device at index -1577385984 01:17:08 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0x45, 0x0, 0x0, 0x0, 0x0) 01:17:08 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f56, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:08 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1ae000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 573.790617][T32714] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:17:08 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\a\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:08 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x100000000000000) 01:17:08 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1ad000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:08 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:08 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1ad000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 574.114410][T32724] nbd: couldn't find device at index -1577385984 [ 574.164981][T32739] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:17:08 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\b\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:08 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x700000000000000) 01:17:08 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1af000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 574.224463][T32724] nbd: couldn't find device at index -1577385984 01:17:08 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:08 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f57, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:09 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x800000000000000) 01:17:09 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x580f, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 574.503742][T32759] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:17:09 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\t\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:09 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1b0000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:09 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 574.643459][T32762] nbd: couldn't find device at index -1577385984 01:17:09 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x2000000000000000) 01:17:09 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00,\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:09 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x8000000000000000) 01:17:09 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f58, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:09 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1b1000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:09 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 574.923323][ T308] nbd: couldn't find device at index -1577385984 01:17:09 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00H\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:09 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1af000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:09 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0xffffffff00000000) 01:17:09 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1b2000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 575.282174][ T328] nbd: couldn't find device at index -1577385984 [ 575.365069][ T336] nbd: couldn't find device at index -1577385984 01:17:09 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:10 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00L\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:10 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x12c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:10 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f59, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) 01:17:10 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1b3000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:10 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r0, 0x0) preadv(r0, &(0x7f0000000280), 0x18, 0xd9f, 0x0) r1 = syz_io_uring_setup(0x2ea7, &(0x7f0000000200)={0x0, 0x2, 0x20, 0x0, 0x210, 0x0, r0}, &(0x7f0000033000/0x1000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f0000000000)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0x0, 0x0}) syz_io_uring_submit(r2, r3, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r4, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r2, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r1, 0xbf, 0x0, 0x0, 0x0, 0x0) [ 575.591134][ T358] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:17:10 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) 01:17:10 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00P\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) 01:17:10 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x12c000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) 01:17:10 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r3, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) io_uring_enter(r0, 0xbf, 0x0, 0x0, 0x0, 0x0) r4 = mmap$IORING_OFF_SQ_RING(&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0xe, 0x100010, r0, 0x0) r5 = mmap$IORING_OFF_SQES(&(0x7f0000ffc000/0x2000)=nil, 0x2000, 0x4, 0x12, r0, 0x10000000) syz_io_uring_submit(r4, r5, &(0x7f0000000000)=@IORING_OP_FADVISE={0x18, 0x3, 0x0, @fd_index=0xa, 0x97d, 0x0, 0x2, 0x5}, 0x81) 01:17:10 executing program 0: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(0x0, 0x200100, 0x11) unlinkat(r0, &(0x7f0000000200)='./file0\x00', 0x200) socket$inet6_udp(0xa, 0x2, 0x0) kexec_load(0x1b4000, 0x2, &(0x7f0000000780)=[{0x0}, {0x0, 0x0, 0x0, 0x3e0000}], 0x0) r1 = openat(0xffffffffffffffff, &(0x7f0000000000)='/proc/self/exe\x00', 0x0, 0x1) mmap(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x800006, 0x12, r1, 0x0) preadv(r1, &(0x7f0000000280), 0x18, 0x0, 0x0) [ 575.929923][ T369] nbd: couldn't find device at index -1577385984 [ 575.963920][ T383] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. 01:17:10 executing program 4: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, 0x0, 0x0, 0x0) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00h\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x40, 0x0, 0x0, 0x4) [ 576.023181][ T374] nbd: couldn't find device at index -1577385984 01:17:10 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 576.144356][ T5] BUG: unable to handle page fault for address: fffffbfff358bb27 [ 576.152281][ T5] #PF: supervisor read access in kernel mode [ 576.158250][ T5] #PF: error_code(0x0000) - not-present page [ 576.164218][ T5] PGD 23ffe9067 P4D 23ffe9067 PUD 23ffe8067 PMD 0 [ 576.170724][ T5] Oops: 0000 [#1] PREEMPT SMP KASAN [ 576.175914][ T5] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.12.0-syzkaller #0 [ 576.183884][ T5] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 01:17:10 executing program 5: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, &(0x7f00000007c0)=0x0, &(0x7f0000000080)=0x0) r3 = gettid() r4 = pidfd_getfd(0xffffffffffffffff, r0, 0x0) perf_event_open(&(0x7f0000000340)={0x3, 0x80, 0x3, 0x3, 0xfc, 0x5, 0x0, 0x100000001, 0x200, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x5, 0x4, @perf_bp={&(0x7f0000000040)}, 0x8, 0x4, 0x1, 0x2, 0x400, 0x1, 0xafc, 0x0, 0x1, 0x0, 0x8001}, r3, 0x7, r4, 0x0) perf_event_open(&(0x7f00000003c0)={0x3, 0x80, 0x20, 0x3b, 0x9, 0x20, 0x0, 0x3, 0x14040, 0x6, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x1, 0x0, 0x20, 0x4, @perf_bp={&(0x7f0000000100), 0xc}, 0x1000, 0x2, 0x7f, 0x2, 0x9, 0x9, 0x6, 0x0, 0x101, 0x0, 0x4}, r3, 0x3, 0xffffffffffffffff, 0x1) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0x0, 0x0}) syz_io_uring_submit(r1, r2, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x4, 0x0, r5, 0x0, 0x0}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(r1, 0x40, &(0x7f0000000140)=0x307e, 0x0, 0x4) r6 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) socket$kcm(0x29, 0x5, 0x0) connect$bt_l2cap(r6, &(0x7f0000000000)={0x1f, 0x0, @fixed}, 0xe) shutdown(r6, 0xc82a0449170c81e1) r7 = openat$rtc(0xffffff9c, &(0x7f0000000040), 0x0, 0x0) ioctl$RTC_ALM_READ(r7, 0x80247008, &(0x7f0000000080)) preadv2(r7, &(0x7f0000000600)=[{&(0x7f0000000440)=""/211, 0xd3}, {&(0x7f0000000540)=""/111, 0x6f}, {&(0x7f00000005c0)=""/26, 0x1a}, {&(0x7f00000013c0)=""/4096, 0x1000}], 0x4, 0x2, 0x9, 0x2) getsockopt$sock_buf(r6, 0x1, 0x37, &(0x7f0000000180)=""/234, &(0x7f0000000000)=0xea) 01:17:10 executing program 3: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 576.184267][ T403] netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. [ 576.193933][ T5] Workqueue: events l2cap_chan_timeout [ 576.193964][ T5] RIP: 0010:kasan_check_range+0xdb/0x180 [ 576.193991][ T5] Code: 80 38 00 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 <80> 38 00 74 f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c [ 576.194009][ T5] RSP: 0018:ffffc90000ca78e8 EFLAGS: 00010086 01:17:10 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f5a, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 576.239848][ T5] RAX: fffffbfff358bb27 RBX: fffffbfff358bb28 RCX: ffffffff8159c993 [ 576.247818][ T5] RDX: fffffbfff358bb28 RSI: 0000000000000008 RDI: ffffffff9ac5d938 [ 576.255785][ T5] RBP: fffffbfff358bb27 R08: 0000000000000000 R09: ffffffff9ac5d93f [ 576.263754][ T5] R10: fffffbfff358bb27 R11: 0000000000000000 R12: ffff888011d28000 [ 576.271721][ T5] R13: ffff888011d28aba R14: ffff888011d289f8 R15: dffffc0000000000 [ 576.279690][ T5] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 576.288612][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 576.295190][ T5] CR2: fffffbfff358bb27 CR3: 00000000909e6000 CR4: 0000000000350ef0 [ 576.303162][ T5] Call Trace: [ 576.306433][ T5] __lock_acquire+0xf53/0x5230 [ 576.311205][ T5] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 576.317010][ T5] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 576.322992][ T5] ? lock_chain_count+0x20/0x20 [ 576.324467][ T411] nbd: couldn't find device at index -1577385984 [ 576.327842][ T5] lock_acquire+0x1ab/0x740 [ 576.327869][ T5] ? lock_sock_nested+0x40/0x120 [ 576.327892][ T5] ? lock_release+0x720/0x720 [ 576.348249][ T5] ? del_timer+0xc5/0x110 [ 576.352584][ T5] _raw_spin_lock_bh+0x2f/0x40 [ 576.357351][ T5] ? lock_sock_nested+0x40/0x120 [ 576.362292][ T5] lock_sock_nested+0x40/0x120 [ 576.367056][ T5] l2cap_sock_teardown_cb+0xa1/0x660 [ 576.372344][ T5] l2cap_chan_del+0xbc/0xa80 [ 576.376935][ T5] l2cap_chan_close+0x1bc/0xaf0 [ 576.381786][ T5] ? l2cap_rx+0x1fb0/0x1fb0 [ 576.386288][ T5] ? lock_release+0x720/0x720 01:17:10 executing program 1: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 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) syz_io_uring_setup(0x3dc4, 0x0, &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)) r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r1) sendmsg$NBD_CMD_CONNECT(r0, &(0x7f0000000540)={0x0, 0x0, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="010000000000ff00000001000000040007800c0002"], 0x2c}}, 0x0) [ 576.386499][ T411] nbd: couldn't find device at index -1577385984 [ 576.390962][ T5] ? lock_downgrade+0x6e0/0x6e0 [ 576.390984][ T5] ? do_raw_spin_lock+0x120/0x2b0 [ 576.391008][ T5] l2cap_chan_timeout+0x17e/0x2f0 [ 576.412179][ T5] process_one_work+0x98d/0x1600 [ 576.417129][ T5] ? pwq_dec_nr_in_flight+0x320/0x320 [ 576.422524][ T5] ? rwlock_bug.part.0+0x90/0x90 [ 576.427473][ T5] ? _raw_spin_lock_irq+0x41/0x50 [ 576.432506][ T5] worker_thread+0x64c/0x1120 [ 576.437191][ T5] ? process_one_work+0x1600/0x1600 01:17:11 executing program 2: perf_event_open(&(0x7f0000001340)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) syz_io_uring_setup(0x3dc4, &(0x7f00000002c0), &(0x7f0000033000/0x4000)=nil, &(0x7f0000ffb000/0x4000)=nil, 0x0, &(0x7f0000000080)=0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) syz_io_uring_submit(0x0, r0, &(0x7f0000000280)=@IORING_OP_CONNECT={0x10, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000001040), r2) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000000540)={0x0, 0x22f5b, &(0x7f0000000500)={&(0x7f00000002c0)=ANY=[@ANYBLOB=',\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="010000000000ff00000001000000040007800c0002000000000000000000080001000000fba1"], 0x2c}}, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x7024, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x1}, &(0x7f0000ffc000/0x2000)=nil, &(0x7f00006d4000/0x3000)=nil, &(0x7f0000000080), &(0x7f0000000000)=0x0) socket$alg(0x26, 0x5, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x0) [ 576.442390][ T5] kthread+0x3b1/0x4a0 [ 576.446456][ T5] ? __kthread_bind_mask+0xc0/0xc0 [ 576.451572][ T5] ret_from_fork+0x1f/0x30 [ 576.456002][ T5] Modules linked in: [ 576.459893][ T5] CR2: fffffbfff358bb27 [ 576.464047][ T5] ---[ end trace 2e46063f262900cc ]--- [ 576.469496][ T5] RIP: 0010:kasan_check_range+0xdb/0x180 [ 576.475146][ T5] Code: 80 38 00 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 <80> 38 00 74 f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c [ 576.494765][ T5] RSP: 0018:ffffc90000ca78e8 EFLAGS: 00010086 [ 576.500830][ T5] RAX: fffffbfff358bb27 RBX: fffffbfff358bb28 RCX: ffffffff8159c993 [ 576.508801][ T5] RDX: fffffbfff358bb28 RSI: 0000000000000008 RDI: ffffffff9ac5d938 [ 576.516767][ T5] RBP: fffffbfff358bb27 R08: 0000000000000000 R09: ffffffff9ac5d93f [ 576.524820][ T5] R10: fffffbfff358bb27 R11: 0000000000000000 R12: ffff888011d28000 [ 576.532786][ T5] R13: ffff888011d28aba R14: ffff888011d289f8 R15: dffffc0000000000 [ 576.540759][ T5] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 576.549691][ T5] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 576.556272][ T5] CR2: fffffbfff358bb27 CR3: 00000000909e6000 CR4: 0000000000350ef0 [ 576.564242][ T5] Kernel panic - not syncing: Fatal exception in interrupt [ 576.575192][ T5] Kernel Offset: disabled [ 576.579598][ T5] Rebooting in 86400 seconds..